US20110315395A1 - Method and apparatus for containing a defective blowout preventer (bop) stack using bopstopper assemblies having remotely controlled valves and heating elements - Google Patents
Method and apparatus for containing a defective blowout preventer (bop) stack using bopstopper assemblies having remotely controlled valves and heating elements Download PDFInfo
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- US20110315395A1 US20110315395A1 US12/860,001 US86000110A US2011315395A1 US 20110315395 A1 US20110315395 A1 US 20110315395A1 US 86000110 A US86000110 A US 86000110A US 2011315395 A1 US2011315395 A1 US 2011315395A1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
- E21B43/0122—Collecting oil or the like from a submerged leakage
Definitions
- This application generally relates to a method and apparatus for containing an oil and/or gas spill originating from the bottom of an ocean.
- An offshore platform often referred to as an oil platform or an oil rig, is a large structure used in offshore drilling to house workers and machinery needed to drill wells in the ocean bed, extract oil and/or natural gas, process the produced fluids, and ship or pipe them to shore.
- the platform may be fixed to the ocean floor, may consist of an artificial island, or may float.
- Remote subsea wells may also be connected to a platform by flow lines and by umbilical connections.
- These subsea solutions may consist of single wells or of a manifold center for multiple wells.
- FIG. 1 shows a deep sea drilling rig 100 on an ocean surface 105 that processes oil and/or gas 110 obtained from below an ocean floor 115 via a blowout preventer (BOP) stack 120 and a riser assembly 125 .
- BOP blowout preventer
- FIG. 2 illustrates a deep sea drilling rig 100 ′ after exploding due to a defective BOP stack 120 ′, causing an oil and/or gas spill 210 that pollutes the ocean and needs to be contained. The explosion may further cause the riser assembly 125 to break into portions 125 ′ and 125 ′′.
- the Deepwater Horizon oil spill also called the BP oil spill, the Gulf of Mexico oil spill or the Macondo blowout
- the spill stemmed from a sea floor oil gusher that started with an oil well blowout on Apr. 20, 2010.
- the blowout caused a catastrophic explosion on the Deepwater Horizon offshore oil drilling platform that was situated about 40 miles (64 km) southeast of the Louisiana coast in the Macondo Prospect oil field.
- the explosion killed 11 platform workers and injured 17 others. Another 98 people survived without serious physical injury.
- a BOP should have activated itself automatically to avoid an oil spill in the Gulf of Mexico.
- the oil spill originated from a deepwater oil well 5,000 feet (1,500 m) below the ocean surface.
- a BOP is a large valve that has a variety of ways to choke off the flow of oil from a gushing oil well. If underground pressure forces oil or gas into the wellbore, operators can close the valve remotely (usually via hydraulic actuators) to forestall a blowout, and regain control of the wellbore. Once this is accomplished, often the drilling mud density within the hole can be increased until adequate fluid pressure is placed on the influx zone, and the BOP can be opened for operations to resume.
- the purpose of BOPs is to end oil gushers, which are dangerous and costly.
- BOPs come in a variety of styles, sizes and pressure ratings, and usually several individual units compose a BOP stack.
- the BOP stack used for the Deepwater Horizon is quite large, consisting of a five-story-tall, 300-ton series of oil well control devices.
- the amount of oil that was discharged after the Deepwater Horizon drilling rig explosion is estimated to have ranged from 12,000 to 100,000 barrels (500,000 to 4,200,000 gallons) per day.
- the volume of oil flowing from the blown-out well was estimated at 12,000 to 19,000 barrels (500,000 to 800,000 gallons) per day, which had amounted to between 440,000 and 700,000 barrels (18,000,000 and 29,000,000 gallons).
- an oil slick resulted that covered a surface area of over 2,500 square miles (6,500 km 2 ).
- Scientists had also discovered immense underwater plumes of oil not visible from the surface.
- top kill Another solution is to attempt to shut down the well completely using a technique called “top kill”. This solution involves pumping heavy drilling fluids into the defective BOP, causing the flow of oil from the well to be restricted, which then may be sealed permanently with cement and/or mud. However, this solution has not been successful in the past.
- a method and apparatus are described for containing oil and/or gas spewing from a defective blowout preventer (BOP) stack located on a floor of an ocean using BOPstopper assemblies.
- BOP blowout preventer
- a BOPstopper containment assembly is submerged below a surface of the ocean and positioned on a portion of the ocean floor that circumvents the defective BOP stack.
- a BOPstopper valve assembly is submerged below the ocean surface and positioned on top of the BOPstopper containment assembly to contain the oil and/or gas.
- the BOPstopper containment assembly may comprise a plurality of flooding valves. At least one of the flooding valves may be opened to submerge the BOPstopper containment assembly below the ocean surface. The at least one flooding valve may be closed after the BOPstopper containment assembly is positioned on the portion of the ocean floor that circumvents the defective BOP stack.
- the flooding valves of the BOPstopper containment assembly may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- the BOPstopper containment assembly may comprise a hollow wall having a reinforcement cavity, and a plurality of reinforcement material input valves.
- the BOPstopper containment assembly may be reinforced by filling the reinforcement cavity of the hollow wall of the BOPstopper containment assembly with reinforcement material via at least one of the reinforcement material input valves.
- the reinforcement material may comprise at least one of cement or mud.
- the reinforcement material input valves of the BOPstopper containment assembly may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- the BOPstopper valve assembly may also comprise a plurality of flooding valves. At least one of the flooding valves may be opened to submerge the BOPstopper valve assembly below the ocean surface. The at least one flooding valve may be closed after the BOPstopper valve assembly is positioned on top of the BOPstopper containment assembly.
- the flooding valves of the BOPstopper valve assembly may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- the BOPstopper valve assembly may comprise a hollow cavity and a plurality of reinforcement material input valves.
- the BOPstopper valve assembly may be reinforced by filling the hollow cavity of the BOPstopper valve assembly with reinforcement material via at least one of the reinforcement material input valves.
- the reinforcement material may comprise at least one of cement or mud.
- the reinforcement material input valves of the BOPstopper valve assembly may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- the BOPstopper valve assembly may further comprise at least one large diameter high pressure valve that is surrounded by the hollow cavity.
- the large diameter high pressure valve may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- the large diameter high pressure valve is maintained in an open position when the BOPstopper valve assembly is submerged below the ocean surface.
- the large diameter high pressure valve is maintained in a closed position after the BOPstopper valve assembly is positioned on top of the BOPstopper containment assembly.
- FIG. 1 shows a simplified diagram of a deep sea drilling rig on a surface of an ocean that processes oil and/or gas received from a BOP stack located on a floor of the ocean;
- FIG. 2 shows a deep sea drilling rig after exploding due to a defective BOP stack, and causing an oil and/or gas spill that needs to be contained;
- FIG. 3A shows a top view of a cylindrical BOPstopper containment assembly that is configured in accordance with a first embodiment of the present invention
- FIG. 3B shows a side view of the cylindrical BOPstopper containment assembly of FIG. 3A ;
- FIG. 3C is a block diagram of a communications and control unit (CCU) used with the cylindrical BOPstopper containment assembly of FIGS. 3A and 3B ;
- CCU communications and control unit
- FIG. 3D shows a top view of the defective BOP stack and an outline of the outer wall of a cylindrical BOPstopper containment assembly circumventing the defective BOP stack on a portion of the ocean floor;
- FIG. 3E shows a cross-sectional view of the cylindrical BOPstopper containment assembly of FIGS. 3A and 3B ;
- FIG. 3F shows a cross-sectional view of a reinforcement cavity in a hollow wall of the cylindrical BOPstopper containment assembly of FIG. 3E while being filled with reinforcement material (e.g., cement and/or mud);
- reinforcement material e.g., cement and/or mud
- FIG. 3G shows a top view of a square cuboid BOPstopper containment assembly that is configured in accordance with the first embodiment of the present invention
- FIG. 3H shows a side view of the square cuboid BOPstopper containment assembly of FIG. 3G ;
- FIG. 3I is a block diagram of a CCU used with the square cuboid BOPstopper containment assembly of FIGS. 3G and 3H ;
- FIG. 4A shows a top view of a cylindrical BOPstopper valve assembly that is configured in accordance with a first embodiment of the present invention
- FIG. 4B shows a side view of the cylindrical BOPstopper valve assembly of FIG. 4A ;
- FIG. 4C is a block diagram of a CCU used with the cylindrical BOPstopper valve assembly of FIGS. 4A and 4B ;
- FIG. 4D shows a top view of a square cuboid BOPstopper valve assembly that is configured in accordance with the first embodiment of the present invention
- FIG. 4E shows a side view of the square cuboid BOPstopper valve assembly of FIG. 4D ;
- FIG. 4F is a block diagram of a CCU used with the square cuboid BOPstopper valve assembly of FIGS. 4D and 4E ;
- FIG. 5 shows a cross-sectional view of the cylindrical BOPstopper valve assembly positioned on top of the reinforced cylindrical BOPstopper containment assembly while a large diameter high pressure valve of the cylindrical BOPstopper valve assembly is maintained in an open position;
- FIG. 6 shows a cross-sectional view of a hollow cavity of the cylindrical BOPstopper valve assembly while being filled with reinforcement material (e.g., cement and/or mud);
- reinforcement material e.g., cement and/or mud
- FIG. 7 shows a cross-sectional view of the reinforced cylindrical BOPstopper valve assembly positioned on top of the reinforced cylindrical BOPstopper containment assembly while the large diameter high pressure valve of the cylindrical BOPstopper valve assembly is maintained in an closed position;
- FIGS. 8A and 8B show a side view of the reinforced cylindrical BOPstopper valve assembly positioned on top of the reinforced cylindrical BOPstopper containment assembly;
- FIGS. 9A and 9B show a side view of a reinforced square cuboid BOPstopper valve assembly positioned on top of the reinforced square cuboid BOPstopper containment assembly;
- FIGS. 10A and 10B taken together, are a flow diagram of a procedure for containing oil and/or gas spewing from a defective BOP stack using a BOPstopper containment assembly and a BOPstopper valve assembly in accordance with the first embodiment of the present invention
- FIG. 11A shows a primary containment assembly including a self-fastening mechanism having fastening devices and sealing devices in accordance with a second embodiment of the present invention
- FIG. 11B shows a top view of the primary containment assembly of FIG. 11A ;
- FIG. 11C shows a bottom view of the primary containment assembly of FIG. 11A including activated fastening devices and sealing devices;
- FIG. 11D shows a side view of the primary containment assembly of FIG. 11A circumventing the defective BOP stack and fastened to the ocean floor via the fastening elements of the self-fastening mechanism;
- FIG. 12A shows a primary containment assembly including a self-fastening mechanism having a set of blades in accordance with an alternative to the second embodiment of the present invention
- FIG. 12B shows a top view of the primary containment assembly of FIG. 12A ;
- FIG. 12C shows a bottom view of the primary containment assembly of FIG. 12A with the blades of the self-fastening mechanism rotating;
- FIG. 12D shows a side view of the primary containment assembly of FIG. 12A circumventing the defective BOP stack and fastened to the ocean floor via the blades of the self-fastening mechanism;
- FIGS. 13A , 13 B and 13 C show examples of various secondary containment assemblies configured to be fastened between the primary containment assembly and at least one containment vessel floating on the ocean surface;
- FIG. 14A shows a side view of the assembled first and second containment assemblies connected between the ocean floor and a containment vessel
- FIG. 14B shows a side view of assembled first and second containment assemblies connected between the ocean floor and an oil and/or gas routing device that is controlled to allow the oil and/or gas to be routed via one or more flexible containment sections in order to be stored by one or more respective containment vessels;
- FIG. 15 is a flow diagram of a procedure for containing oil and/or gas spewing from a defective BOP stack using the primary and secondary containment assemblies of FIGS. 11A-11D , 12 A- 12 D and 13 A- 13 C;
- FIG. 16 shows a side view of a primary containment assembly configured to receive “top kill” cement and/or mud via a first set of top kill valves, while regulating the output of the leaking oil and/or gas via a valve on an upper opening in accordance with a third embodiment of the present invention
- FIG. 17 shows a side view of a primary containment assembly having a hollow steel-reinforced wall configured to receive wall reinforcement material via a set of wall reinforcement valves, and a second set of top kill valves configured to receive top kill cement and/or mud to fill a bottom portion of the primary containment assembly, while regulating the output of the leaking oil and/or gas via a valve on a heated upper opening in accordance with a fourth embodiment of the present invention.
- FIG. 18 is a flow diagram of a procedure for containing oil and/or gas spewing from a defective BOP stack using the primary containment assembly of FIG. 17 .
- the present invention described herein otherwise known as the “BOPstopper”, proposes the undertaking of a potentially expensive method and apparatus, due to the substantially large size of a defective BOP stack that must be circumvented and sealed under thousands of feet of water in response to a catastrophic event, such as the Deepwater Horizon oil spill.
- a catastrophic event such as the Deepwater Horizon oil spill.
- the BOPstopper uses its various embodiments to substantially isolate the BOP stack 120 ′ from the ocean by completely circumventing and encasing the defective BOP stack 120 ′.
- the amount of ocean that mixes with the spewing oil and/or gas 210 is minimized.
- a combination of one or more heating elements and measurement equipment, as well as the addition of one or more valves, allows the BOPstopper to better contain and/or control the spewing oil and/or gas 210 .
- the BOPstopper contains oil from a subsea oil and/or gas blowout.
- An apparatus constructed from this design will mitigate the spread of oil slicks from subsea oil and/or gas blowouts, with the benefit of allowing oil and/or gas exploration to proceed with diminished risk of environmental damage.
- the BOPstopper has particular application where coastal wetlands or other delicate ecosystems may potentially be damaged by an oil spill. There currently appears to be no alternative method or apparatus for containing the oil from such blowouts.
- the BOPstopper has market potential in basins subject to offshore oil exploration where deepwater rigs are active.
- the reinforcement material mentioned herein such as cement
- cement is used underwater for many purposes including, for example, in pools, dams, piers, retaining walls and tunnels.
- the hardening time that between mixing and solidification, is particularly important because, if it is too long, the cement does not solidify at all but simply dissolves in the surrounding water, herein the environmental water.
- Compositions containing exothermic micro particles have been found very advantageous for underwater cement applications.
- the exothermic micro particles produce very high rates of exothermic heating when combined with base cement and water. The exothermic heat produced is sufficient to raise the reaction temperature to a point where the cement composition solidifies underwater, even in cold environmental water.
- FIG. 3A shows a top view of a cylindrical BOPstopper containment assembly 300 that is configured in accordance with a first embodiment of the present invention.
- the cylindrical BOPstopper containment assembly 300 has a hollow wall 302 comprising a reinforcement cavity 304 between an inner wall 306 and an outer wall 308 , as well as a set of reinforcement material input valves 310 located near the top perimeter of the hollow wall 302 for filling the reinforcement cavity 304 with reinforcement material (e.g., cement and/or mud).
- reinforcement material e.g., cement and/or mud
- the inner wall 306 and the outer wall 308 may be steel-reinforced, or consist of any other metal of a suitable strength and thickness.
- the cylindrical BOPstopper containment assembly 300 may further comprise at least one seal (e.g., an inner seal 312 and an outer seal 314 ) that is mounted along the entire top perimeter of the hollow wall 302 .
- the cylindrical BOPstopper containment assembly 300 may include one or more mud flaps 316 to stop the cylindrical BOPstopper containment assembly 300 from sinking too far below the ocean floor 115 , especially after the reinforcement cavity 304 is filled with reinforcement material.
- the cylindrical BOPstopper containment assembly 300 may further comprise a CCU 318 and at least one antenna 320 .
- a more sophisticated system of mud flaps 316 may be implemented, whereby the mud flaps 316 may be located at different heights along the outer wall 308 of the cylindrical BOPstopper containment assembly 300 , and may be remotely activated (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105 ) to protrude or retract, or be raised or lowered, to control the depth of the cylindrical BOPstopper containment assembly 300 as more weight is added on top of it in order to contain the spewing oil and/or gas 210 . Furthermore, the mud flaps 316 may be designed to break off, based on how much weight is applied to the top perimeter of the hollow wall 302 of the cylindrical BOPstopper containment assembly 300 .
- the cylindrical BOPstopper containment assembly 300 is submerged below the ocean surface 105 and positioned on a portion of the ocean floor 115 that circumvents a defective BOP stack 120 ′. Although it may be possible to position the cylindrical BOPstopper containment assembly 300 to circumvent the defective BOP stack 120 ′ if the riser assembly 125 remains in a vertical position by letting the riser assembly 125 pass through the center of the cylindrical BOPstopper containment assembly 300 , the riser assembly 125 needs to be disconnected (i.e., cut off) near the top of the defective BOP stack 120 ′ if a catastrophic event caused the riser assembly 125 to collapse (i.e., fold over), as what occurred due to the Deepwater Horizon drilling rig explosion (see FIG. 2 ).
- the cylindrical BOPstopper containment assembly 300 may consist of a plurality of sections and/or components that may be constructed and stored onshore close to areas where deepwater rigs are active.
- the sections and/or components may include seals and/or gaskets, and may be assembled together as they are submerged just under the ocean surface 105 .
- FIG. 3B shows a side view of the cylindrical BOPstopper containment assembly 300 of FIG. 3A .
- the cylindrical BOPstopper containment assembly 300 further comprises an annular rim 322 that connects the bottom of the inner wall 306 to the bottom of the outer wall 308 .
- the cylindrical BOPstopper containment assembly 300 may comprise a plurality of flooding valves 324 , which may be located on the outer wall 308 and/or on the annular rim 322 .
- the cylindrical BOPstopper containment assembly 300 may further comprise a plurality of hoist rings 326 that may be used during the submersion and positioning of the cylindrical BOPstopper containment assembly 300 by a vessel floating on the ocean surface 105 , and/or by at least one remotely operated vehicle (ROV).
- ROV remotely operated vehicle
- the reinforcement material input valves 310 and the flooding valves 324 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105 ) to maintain an open position, a partially open position or a closed position, as desired.
- FIG. 3C is a block diagram of the CCU 318 of the cylindrical BOPstopper containment assembly 300 of FIGS. 3A and 3B .
- the CCU 318 includes a processor 328 , a transceiver 330 , and a rechargeable battery/wired interface 332 .
- the processor 328 is configured to control the reinforcement material input valves 310 and the flooding valves 324 of the cylindrical BOPstopper containment assembly 300 , either wirelessly or via a wired interface, such that they may be maintained in an open position, a partially open position or a closed position, as desired.
- the CCU 318 may communicate with a vessel floating on the ocean surface 105 via the transceiver 330 and the at least one antenna 320 .
- a ROV and/or a vessel floating on the ocean surface 105 may recharge the battery 332 and/or directly provide the necessary voltage and current, via an input jack 334 , to power the processor 328 and the transceiver 330 .
- Various communication techniques such as very low frequency radio techniques coupled with digital signal processing and digitally modulated radio communications methods, may be implemented to facilitate communications via the antenna 320 .
- various types of radio frequency (RF), optic and acoustic communication methods, as well as wired (umbilical) technologies may be implemented for deep water communications between the vessel floating on the ocean surface 105 and the cylindrical BOPstopper containment assembly 300 .
- FIG. 3D shows a top view of the defective BOP stack 120 ′ and a portion 340 of the ocean floor 115 that the cylindrical BOPstopper containment assembly 300 of FIGS. 3A and 3B may be positioned on to circumvent the defective BOP stack 120 ′. It would be desirable to grade the portion 340 of the ocean floor 115 surrounding the defective BOP stack 120 ′, which is to be circumvented by the outer wall 308 of the cylindrical BOPstopper containment assembly 300 , before the cylindrical BOPstopper containment assembly 300 is positioned on it, in order to optimize the reduction of the pollution of the ocean caused by the oil and/or gas 210 spewing from the defective BOP stack 120 ′.
- Such ocean floor grading may be performed by at least one ROV.
- FIG. 3E shows a cross-sectional view of the cylindrical BOPstopper containment assembly 300 of FIGS. 3A and 3B .
- the inner seal 312 and the outer seal 314 are shown being mounted along the entire top perimeter of the hollow wall 302 of the cylindrical BOPstopper containment assembly 300 .
- the reinforcement material input valves 310 are also shown as being located near the top perimeter of the hollow wall 302 of the cylindrical BOPstopper containment assembly 300 .
- FIG. 3F shows a cross-sectional view of the reinforcement cavity 304 (above the annular rim 322 of the cylindrical BOPstopper containment assembly 300 ) being filled with reinforcement material (e.g., cement and/or mud).
- reinforcement material e.g., cement and/or mud.
- FIG. 3G shows a top view of a square cuboid BOPstopper containment assembly 350 that is also configured in accordance with the first embodiment of the present invention
- FIG. 3H shows a side view of the square cuboid BOPstopper containment assembly 350 of FIG. 3G .
- the square cuboid BOPstopper containment assembly 350 has a hollow wall 352 comprising a reinforcement cavity 354 between an inner wall 356 and an outer wall 358 , as well as a set of reinforcement material input valves 360 located near the top perimeter of the hollow wall 352 for filling the reinforcement cavity 354 with reinforcement material (e.g., cement and/or mud).
- the square cuboid BOPstopper containment assembly 350 may further comprise at least one seal (e.g., an inner seal 362 and an outer seal 364 ) that is mounted along the entire top perimeter of the wide hollow wall 352 .
- the square cuboid BOPstopper containment assembly 350 may include one or more mud flaps 366 to stop the square cuboid BOPstopper containment assembly 350 from sinking too far below the ocean floor 115 , especially after the reinforcement cavity 354 is filled with reinforcement material.
- the square cuboid BOPstopper containment assembly 350 may further comprise a CCU 368 and at least one antenna 370 .
- the square cuboid BOPstopper containment assembly 350 further comprises a square rim 372 that connects the bottom of the inner wall 356 to the bottom of the outer wall 358 .
- the square cuboid BOPstopper containment assembly 350 may comprise a plurality of flooding valves 374 , which may be located on the outer wall 358 and/or on the square rim 372 .
- the square cuboid BOPstopper containment assembly 350 may further comprise a plurality of hoist rings 376 that may be used during the submersion and positioning of the square cuboid BOPstopper containment assembly 350 by a vessel floating on the ocean surface 105 , and/or by at least one ROV.
- FIG. 3I is a block diagram of the CCU 368 of the square cuboid BOPstopper containment assembly 350 of FIGS. 3G and 3H .
- the CCU 368 includes a processor 378 , a transceiver 380 , and a rechargeable battery/wired interface 382 .
- the processor 378 is configured to control the reinforcement material input valves 360 and the flooding valves 374 of the square cuboid BOPstopper containment assembly 350 , either wirelessly or via a wired interface, such that they may be maintained in an open position, a partially open position or a closed position, as desired.
- the CCU 368 may communicate with a vessel floating on the ocean surface 105 via the transceiver 380 and the at least one antenna 370 .
- a ROV and/or a vessel floating on the ocean surface 105 may recharge the battery 382 and/or directly provide the necessary voltage and current, via an input jack 384 , to power the processor 378 and the transceiver 380 .
- Various communication techniques such as very low frequency radio techniques coupled with digital signal processing and digitally modulated radio communications methods, may be implemented to facilitate communications via the antenna 370 .
- various types of radio frequency (RF), optic and acoustic communication methods, as well as wired (umbilical) technologies may be implemented for deep water communications between the vessel floating on the ocean surface 105 and the cylindrical BOPstopper containment assembly 300 .
- FIG. 4A shows a top view of a cylindrical BOPstopper valve assembly 400 that is configured in accordance with the first embodiment of the present invention.
- the cylindrical BOPstopper valve assembly 400 may have the same diameter as the cylindrical BOPstopper containment assembly 300 shown in FIGS. 3A and 3B .
- the cylindrical BOPstopper valve assembly 400 comprises at least one large diameter high pressure valve 402 , at least one seal (e.g., an inner seal 404 and an outer seal 406 ) that is mounted along the entire bottom perimeter of the cylindrical BOPstopper valve assembly 400 , as well as a plurality of reinforcement material input valves 410 .
- the large diameter high pressure valve 402 and the reinforcement material input valves 410 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105 ) to maintain an open position, a partially open position or a closed position, as desired.
- the high pressure valve 402 In its open position, the high pressure valve 402 is configured with an opening of such a large diameter that the spewing oil and/or gas 210 would pass through it without being sufficiently impeded by ice-like crystals (i.e., icy hydrates) that may form near the bottom of an ocean.
- ice-like crystals i.e., icy hydrates
- the cylindrical BOPstopper valve assembly 400 further comprises a hollow cavity 412 that surrounds the large diameter high pressure valve 402 .
- the hollow cavity 412 is configured to be filled with reinforcement material (e.g., cement and/or mud) via at least one of the reinforcement material input valves 410 .
- the cylindrical BOPstopper valve assembly 400 may also comprise a pressure monitor unit 414 for monitoring the pressure of the oil and/or gas spill 210 .
- the cylindrical BOPstopper valve assembly 400 may further comprise a CCU 416 and at least one antenna 418 .
- FIG. 4B shows a side view of the cylindrical BOPstopper valve assembly 400 of FIG. 4A .
- the hollow cavity 412 of the cylindrical BOPstopper valve assembly 400 comprises a floor 420 , a ceiling 422 and a wall 424 .
- the floor 420 , ceiling 422 and wall 424 of the hollow cavity 412 of the cylindrical BOPstopper valve assembly 400 may be steel-reinforced, or consist of any other metal of a suitable strength and thickness.
- the cylindrical BOPstopper valve assembly 400 may comprise a plurality of flooding valves 426 , which may be located on the wall 424 and/or on the floor 420 of the hollow cavity 412 .
- the flooding valves 426 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105 ) to maintain an open position, a partially open position or a closed position, as desired.
- the cylindrical BOPstopper valve assembly 400 may also comprise a plurality of hoist rings 428 that may be used during the submersion and positioning of the cylindrical BOPstopper valve assembly 400 by using a vessel floating on the ocean surface 105 , and/or by using at least one ROV.
- the cylindrical BOPstopper valve assembly 400 comprises a pressure sensor 430 , located near the floor 420 of the hollow cavity 412 just inside the entrance to the large diameter high pressure valve 402 , that communicates with the pressure monitor unit 414 , and optionally, with a vessel floating on the ocean surface 105 , via a wired connection and/or a wireless communication link.
- the cylindrical BOPstopper valve assembly 400 may further comprise one or more heating element(s) 432 for heating up the large diameter valve 402 .
- the heating element(s) 432 may be configured to be remotely activated (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105 ).
- FIG. 4C is a block diagram of the CCU 416 of the cylindrical BOPstopper valve assembly 400 of FIGS. 4A and 4B .
- the CCU 416 includes a processor 434 , a transceiver 436 , and a rechargeable battery/wired interface 438 .
- the processor 434 is configured to control the reinforcement material input valves 410 and the flooding valves 426 of the cylindrical BOPstopper valve assembly 400 , either wirelessly or via a wired interface, such that they may be maintained in an open position, a partially open position or a closed position, as desired.
- the processor 434 may also be configured to control the at least one heating element 432 , either wirelessly or via a wired interface.
- the BOPstopper valve assembly CCU 416 may communicate with a vessel floating on the ocean surface 105 via the transceiver 436 and the at least one antenna 418 .
- a ROV and/or a vessel floating on the ocean surface 105 may recharge the battery 438 and/or directly provide the necessary voltage and current, via an input jack 440 , to power the processor 434 and the transceiver 436 .
- Various communication techniques such as very low frequency radio techniques coupled with digital signal processing and digitally modulated radio communications methods, may be implemented to facilitate communications via the antenna 418 .
- various types of radio frequency (RF), optic and acoustic communication methods, as well as wired (umbilical) technologies may be implemented for deep water communications between the vessel floating on the ocean surface 105 and the cylindrical BOPstopper valve assembly 400 .
- FIG. 4D shows a top view of a square cuboid BOPstopper valve assembly 450 that is configured in accordance with the first embodiment of the present invention
- FIG. 4E shows a side view of the square cuboid BOPstopper valve assembly 450 of FIG. 4D .
- the square cuboid BOPstopper valve assembly 450 comprises at least one large diameter high pressure valve 452 , at least one seal (e.g., an inner seal 454 and an outer seal 456 ) that is mounted along the entire bottom perimeter of the square cuboid BOPstopper valve assembly 450 , as well as a plurality of reinforcement material input valves 460 .
- the square cuboid BOPstopper valve assembly 450 further comprises a hollow cavity 462 that surrounds the large diameter high pressure valve 452 .
- the hollow cavity 462 is configured to be filled with reinforcement material (e.g., cement and/or mud) via at least one of the reinforcement material input valves 460 .
- the square cuboid BOPstopper valve assembly 450 also comprises a pressure monitor unit 464 for monitoring the pressure of the oil and/or gas spill 210 .
- the square cuboid BOPstopper containment assembly 450 further comprises a CCU 466 and at least one antenna 468 .
- the hollow cavity 462 of the square cuboid BOPstopper valve assembly 450 comprises a floor 470 , a ceiling 472 and a wall 474 .
- the square cuboid BOPstopper valve assembly 450 may comprise a plurality of flooding valves 476 , which may be located on the wall 474 and/or on the floor 470 of the hollow cavity 462 .
- the square cuboid BOPstopper valve assembly 450 may also comprise a plurality of hoist rings 478 that may be used during the submersion and positioning of the square cuboid BOPstopper valve assembly 450 by using a vessel floating on the ocean surface 105 , and/or by using at least one ROV.
- the square cuboid BOPstopper valve assembly 450 comprises a pressure sensor 480 , located near the floor 470 of the hollow cavity 462 just inside the entrance to the large diameter high pressure valve 402 , that communicates with the pressure monitor unit 464 , and optionally, with a vessel floating on the ocean surface 105 , via a wired connection and/or a wireless communication link.
- the square cuboid BOPstopper valve assembly 400 may further comprise one or more heating element(s) 482 for heating up the large diameter valve 452 .
- the heating element(s) 482 may be configured to be remotely activated (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105 ).
- FIG. 4F is a block diagram of the CCU 466 of the square cuboid BOPstopper valve assembly 450 of FIGS. 4D and 4E .
- the CCU 466 includes a processor 484 , a transceiver 486 , and a rechargeable battery/wired interface 488 .
- the processor 484 is configured to control the reinforcement material input valves 460 and the flooding valves 476 of the square cuboid BOPstopper valve assembly 450 , either wirelessly or via a wired interface, such that they may be maintained in an open position, a partially open position or a closed position, as desired.
- the processor 484 may also be configured to control the at least one heating element 482 , either wirelessly or via a wired interface.
- the CCU 466 may communicate with a vessel floating on the ocean surface 105 via the transceiver 486 and the at least one antenna 488 .
- a ROV and/or a vessel floating on the ocean surface 105 may recharge the battery 488 and/or directly provide the necessary voltage and current, via an input jack 490 , to power the processor 484 and the transceiver 486 .
- Various communication techniques such as very low frequency radio techniques coupled with digital signal processing and digitally modulated radio communications methods, may be implemented to facilitate communications via the antenna 468 .
- various types of radio frequency (RF), optic and acoustic communication methods, as well as wired (umbilical) technologies may be implemented for deep water communications between the vessel floating on the ocean surface 105 and the cylindrical BOPstopper valve assembly 400 .
- FIG. 5 shows a cross-sectional view of the cylindrical BOPstopper valve assembly 400 of FIGS. 4A and 4B positioned on top of the cylindrical BOPstopper containment assembly 300 after it is reinforced (hereinafter referred to as the reinforced cylindrical BOPstopper containment assembly 300 ′).
- the at least one large diameter high pressure valve 402 protrudes through the ceiling 422 of the hollow cavity 412 .
- the large diameter high pressure valve 402 is maintained in a fully open position such that the oil and/or gas 210 spewing from the defective BOP stack 120 ′ is allowed to pass through the large diameter high pressure valve 402 .
- buoyancy problems due to the pressure of the spewing oil and/or gas 210 may be minimized, while the hollow cavity 412 of the cylindrical BOPstopper valve assembly 400 , surrounding the large diameter high pressure valve 402 , is filled with reinforcement material (e.g., cement and/or mud).
- FIG. 6 shows a cross-sectional view of the hollow cavity 412 of the cylindrical BOPstopper valve assembly 400 being filled with reinforcement material (e.g., cement and/or mud).
- reinforcement material e.g., cement and/or mud
- FIG. 7 shows a cross-sectional view of the cylindrical BOPstopper valve assembly 400 after it has been filled with the reinforcement material (hereinafter referred to as the reinforced BOPstopper cylindrical valve assembly 400 ′), and its large diameter high pressure valve 402 has been closed, resting on top of the reinforced cylindrical BOPstopper containment assembly 300 ′.
- the reinforced BOPstopper cylindrical valve assembly 400 ′ the reinforcement material
- FIGS. 8A and 8B show a side view of the reinforced cylindrical BOPstopper valve assembly 400 ′ positioned on top of the reinforced cylindrical BOPstopper containment assembly 300 ′.
- FIGS. 9A and 9B show a side view of a reinforced square cuboid BOPstopper valve assembly 450 ′ positioned on top of the reinforced square cuboid BOPstopper containment assembly 350 ′.
- a riser assembly 125 may be attached between the large diameter high pressure valve 402 / 452 and a containment vessel floating on the ocean surface 105 .
- the large diameter high pressure valve 402 / 452 may then be opened to allow the oil and/or gas 210 to be stored by the containment vessel.
- the pressure of the oil and/or gas 210 may be monitored by the pressure monitor unit 414 / 464 after the large diameter high pressure valve 402 / 452 is closed.
- the large diameter high pressure valve 402 / 452 may be automatically opened by the pressure monitor unit 414 / 464 when the pressure sensor 430 / 480 detects a pressure within the reinforced BOPstopper containment assembly 300 ′/ 400 ′ that reaches or exceeds a predetermined threshold.
- the hollow wall 302 / 352 of the reinforced BOPstopper containment assembly 300 ′/ 350 ′ may be of such a large width (e.g., 10 feet or more), that it may be unlikely that the reinforced BOPstopper containment assembly 300 ′/ 350 ′ would sink very far below the ocean floor 115 , and thus the mud flaps 316 / 366 may not be necessary.
- the extreme weight applied to the top perimeter of the hollow wall 302 / 352 of the reinforced BOPstopper containment assembly 300 ′/ 350 ′ may be so great, that the reinforced BOPstopper containment assembly 300 ′/ 350 ′ may sink many feet below the ocean floor 115 .
- FIGS. 10A and 10B taken together, are a flow diagram of a procedure 1000 for containing oil and/or gas spewing from a defective BOP stack 120 ′ using a BOPstopper containment assembly 300 ′/ 350 ′ and a BOPstopper cylindrical valve assembly 400 ′/ 450 ′ in accordance with the first embodiment of the present invention.
- a BOPstopper containment assembly 300 / 350 having a hollow wall 302 / 352 with a reinforcement cavity 304 / 354 , is submerged below the ocean surface 105 by opening at least one of a first plurality of flooding valves 324 / 374 on the BOPstopper containment assembly 300 / 350 to fill the reinforcement cavity 304 / 354 with water from the ocean.
- the BOPstopper containment assembly 300 / 350 is positioned on a portion of an ocean floor 115 that circumvents a defective BOP stack 120 ′.
- step 1015 the at least one of the first plurality of flooding valves 324 / 374 on the BOPstopper containment assembly 300 / 350 is closed.
- reinforcement material e.g., cement and/or mud
- step 1020 reinforcement material is pumped into at least one of a first plurality of reinforcement material input valves 310 / 360 of the BOPstopper containment assembly 300 / 350 until the reinforcement cavity 304 / 354 of the hollow wall 302 / 352 of the BOPstopper containment assembly 300 / 350 is filled with the reinforcement material.
- a BOPstopper valve assembly 400 / 450 having a hollow cavity 412 / 462 that surrounds at least one large diameter high pressure valve 402 / 452 , is submerged below the ocean surface 105 by opening at least one of a second plurality of flooding valves 426 / 476 on the BOPstopper valve assembly 400 / 450 to fill the hollow cavity 412 / 462 with water from the ocean.
- the BOPstopper valve assembly 400 / 450 is positioned on top of the reinforced BOPstopper containment assembly 300 ′/ 350 ′ such that at least one first seal 404 / 406 / 454 / 456 , mounted along the entire bottom perimeter of the BOPstopper valve assembly 400 / 450 , mates with at least one second seal 312 / 314 / 362 / 364 mounted along the entire top perimeter of the reinforced BOPstopper containment assembly 300 ′/ 350 ′, and the oil and/or gas 210 spewing from the defective BOP stack 120 ′ is allowed to pass through the large diameter high pressure valve 402 / 452 , which is maintained in an open position.
- step 1035 the at least one of the second plurality of flooding valves 426 / 476 on the BOPstopper valve assembly 400 / 450 is closed.
- reinforcement material e.g., cement and/or mud
- step 1040 reinforcement material is pumped into at least one of a second plurality of reinforcement material input valves 410 / 460 on the BOPstopper valve assembly 400 / 450 until the hollow cavity 412 / 462 of the BOPstopper valve assembly 400 / 450 is filled with the reinforcement material, causing the first seal 404 / 406 / 454 / 456 and the second seal 312 / 314 / 362 / 364 to compress together.
- step 1045 the large diameter high pressure valve 402 / 452 of the reinforced BOPstopper valve assembly 400 ′/ 450 ′ is slowly closed, while using the pressure monitor unit 414 / 464 to monitor the pressure within the reinforced BOPstopper containment assembly 300 ′/ 350 ′, until the oil and/or gas 210 stops flowing through the large diameter high pressure valve 402 / 452 .
- the diameter/width of the BOPstopper containment assembly 300 / 350 may be on the order of 80 feet, and the height of the BOPstopper containment assembly 300 / 350 may be on the order of 60 feet.
- the width of the hollow wall 302 / 352 of the BOPstopper containment assembly 300 / 350 may be on the order of 10 feet.
- the diameter/width of the BOPstopper valve assembly 400 / 450 may be the same as the diameter/width of the BOPstopper containment assembly 300 / 350 , and the height of the BOPstopper valve assembly 400 / 450 may be on the order of 80 feet.
- the hollow cavity 412 of the of the cylindrical BOPstopper valve assembly 400 may be able to hold on the order of 400,000 cubic feet of reinforcement material (e.g., cement and/or mud), whereas the hollow cavity 462 of the square cuboid BOPstopper valve assembly 450 may be able to hold on the order of 510,000 cubic feet of reinforcement material.
- reinforcement material e.g., cement and/or mud
- the weight applied to the top perimeter of the reinforced cylindrical BOPstopper containment assembly 300 ′ to counter the pressure of the spewing oil and/or gas 210 may be on the order of 25,000 tons.
- the enormous mass of the reinforced cylindrical valve assembly 400 ′, combined with the large mass of the cement-filled reinforcement cavity 304 of the reinforced cylindrical containment assembly 300 ′, should insure that the oil and/or gas 210 would not be able to pass through the bottom of the reinforced cylindrical containment assembly 300 ′, since the annular rim 322 would be applying a huge force to the ocean floor 115 , causing it to compress and form an watertight seal with the bottom of the reinforced cylindrical containment assembly 300 ′.
- the diameter of the valve 402 / 452 is critical to the first embodiment of the present invention, and may be on the order of six feet.
- the diameter of the valve 402 / 452 may be similar to the diameter of jet flow gates used for dams, such as the Hoover Dam, which may range in diameter from 68 to 90 inches.
- the valve 402 / 452 is designed to operate under high pressure (e.g., 10,000-15,000 pounds per square inch (PSI)), and may include a steel plate that may be opened or closed to either prevent or allow the spewing oil and/or gas 210 to be discharged.
- PSI pounds per square inch
- the first embodiment of the present invention may incorporate any of the features of the additional embodiments described below.
- FIG. 11A shows a primary containment assembly 1100 configured to circumvent a defective BOP stack 120 ′ in accordance with a second embodiment of the present invention.
- the primary containment assembly 1100 may be configured in a cylindrical or conical shape, but must be large enough to sufficiently circumvent the defective BOP stack 120 ′.
- the primary containment 1100 may comprise a first opening 1105 that circumvents the defective BOP stack 120 ′.
- the first opening 1105 is preferably configured to be fastened and sealed to the ocean floor 115 by using, for example, a self-fastening mechanism 1110 comprising fastening devices 1115 and/or sealing devices 1120 .
- the primary containment assembly 1100 may further comprise a second opening 1125 that is narrower than the first opening 1105 and through which the spewing oil and/or gas 210 may rise to a secondary containment assembly (e.g., see FIGS. 13A , 13 B and 13 C).
- a secondary containment assembly e.g., see FIGS. 13A , 13 B and 13 C.
- FIG. 11B shows a top view of the primary containment assembly 1100 of FIG. 11A including the second opening 1125 .
- FIG. 11C shows a bottom view of the self-fastening mechanism 1110 of the primary containment assembly 1100 of FIG. 11A including activated fastening elements 1130 projecting from the fastening devices 1115 , and sealant 1135 released from the sealing devices 1120 .
- the self-fastening mechanism 1110 may include a series of small explosive charges that, when detonated, force the fastening elements 1130 to project from the fastening devices 1115 , and fasten the primary containment assembly 1100 to the ocean floor 115 .
- the self-fastening mechanism 1110 may be activated to release sealant 1135 that provides a water-tight seal between the primary containment assembly 1100 and the ocean floor 115 .
- FIG. 11D shows a side view of the primary containment assembly 1100 of FIG. 11A circumventing the defective BOP stack 120 ′ and fastened to the ocean floor 115 via the fastening elements 1130 of the self-fastening mechanism 1110 .
- FIG. 12A shows a primary containment assembly 1200 configured to circumvent a defective BOP stack 120 ′ in accordance with an alternative to the second embodiment of the present invention.
- the primary containment assembly 1200 may be configured in a cylindrical or conical shape, but must be large enough to sufficiently circumvent the defective BOP stack 120 ′.
- the primary containment 1200 may comprise a first opening 1205 that circumvents the defective BOP stack 120 ′.
- the first opening 1205 is preferably configured to be fastened and sealed to the ocean floor 115 by using, for example, a self-fastening mechanism 1210 that rotates at least one blade 1215 used to burrow a portion of the primary containment assembly 1200 below the ocean floor 115 .
- the primary containment assembly 1200 may further comprise a second opening 1220 that is narrower than the first opening 1205 and through which the spewing oil and/or gas 210 may rise to a secondary containment assembly (e.g., see FIGS. 13A , 13 B and 13 C).
- a secondary containment assembly e.g., see FIGS. 13A , 13 B and 13 C.
- FIG. 12B shows a top view of the primary containment assembly 1200 of FIG. 12A including the second opening 1220 .
- FIG. 12C shows a bottom view of the self-fastening mechanism 1210 of the primary containment assembly 1200 of FIG. 12A including at least one rotating blade 1215 of the self-fastening mechanism 1210 .
- FIG. 12D shows a side view of the primary containment assembly 550 of FIG. 12A circumventing the defective BOP stack 120 ′ and fastened to the ocean floor 115 via the blade(s) 1215 of the self-fastening mechanism 1210 .
- the primary containment assembly 1100 / 1200 is lowered below the ocean surface 105 and positioned on a portion of the ocean floor 115 that circumvents the defective BOP stack 120 ′.
- the portion of the ocean floor 115 that circumvents the defective BOP stack 120 ′ before the primary containment assembly 1100 / 1200 is positioned in order to optimize the reduction of the pollution of the ocean caused by the oil and/or gas 210 spewing from the defective BOP stack 120 ′.
- Such ocean floor grading may be performed by at least one ROV.
- the ROV may be used to assist in the lowering and positioning of the primary containment assembly 1100 / 1200 .
- the primary containment assembly 1100 / 1200 may consist of a plurality of sections and/or components that may be constructed and stored onshore close to areas where deepwater rigs are active.
- the sections and/or components may include seals and/or gaskets, and may be assembled together as they are submerged just under the ocean surface 105 .
- FIG. 13A shows a secondary containment assembly 1310 configured to be fastened between the primary containment assembly 1100 / 1200 at the second opening 1125 / 1220 and at least one containment vessel floating on the ocean surface 105 in accordance with the second embodiment of the present invention.
- the secondary containment assembly 1310 may be similar to a riser assembly 125 that is typically connected directly to a properly operating BOP stack 120 , as shown in FIG.
- a first opening 1315 of the secondary containment assembly 1310 is directly attached to the second opening 1125 / 1220 of the primary containment assembly 1100 / 1200
- a second opening 1320 of the secondary containment assembly 1310 is either directly or indirectly attached to at least one containment vessel floating on the ocean surface 105 to allow the spewing oil and/or gas 210 to rise from the second opening 1125 / 1220 of the primary containment assembly 1100 / 1200 to the containment vessel.
- the secondary containment assembly 1310 is preferably configured in a cylindrical shape, but must be long enough to reach the ocean surface 105 .
- FIG. 13B shows a secondary containment assembly 1330 configured to be fastened between the primary containment assembly 1100 / 1200 at the second opening 1125 / 1220 and at least one containment vessel floating.
- the secondary containment assembly 1330 comprises a plurality of sections 1335 that are interconnected to allow the spewing oil and/or gas 210 to rise from the second opening 1125 / 1220 of the primary containment assembly 1100 / 1200 to at least one containment vessel floating on the ocean surface 105 .
- the sections 1325 may be identical, or have varying lengths, but are all preferably configured in a cylindrical shape that, after being interconnected, are long enough to reach the ocean surface 105 .
- FIG. 13C shows a secondary containment assembly 1350 configured to be fastened between the primary containment assembly 1100 / 1200 at the second opening 1125 / 1220 and at least one containment vessel floating on the ocean surface 105 .
- the secondary containment assembly 1350 may comprise a flexible ducting hose, or a plurality of flexible ducting hose sections that are connected in a similar fashion as the sections 1335 of the secondary containment assembly 1330 of FIG. 13B .
- FIG. 14A shows a side view of the assembled first and second containment assemblies 1100 / 1200 / 1310 / 1330 / 1350 connected between the ocean floor 115 and a containment vessel 1410 .
- FIG. 14B shows a side view of the assembled first and second containment assemblies 1100 / 1200 / 1310 / 1330 / 1350 connected between the ocean floor 115 and an oil and/or gas routing device 1420 that is controlled to allow the oil and/or gas to be routed via one or more flexible containment sections (i.e., sections of flexible ducting hose) 1430 A, 1430 B and 1430 C in order to be stored by one or more respective containment vessels 1440 A, 1440 B and 1440 C.
- the flexible containment sections 1430 A, 1430 B and 1430 C the containment vessels are free to move relative to the routing device 1420 due to the influence of tides, currents and weather. Oil would either be pumped to the containment vessels or rise naturally from the routing device due to its own buoyancy.
- FIG. 15 is a flow diagram of a procedure 1500 for containing oil and/or gas spewing from a defective BOP stack 120 ′ located on an ocean floor 115 and causing pollution to the ocean.
- a primary containment assembly 1100 / 1200 is lowered below the ocean surface 105 .
- the primary containment assembly 1100 / 1200 is positioned on a portion of the ocean floor 115 that circumvents the defective BOP stack 120 ′.
- the primary containment assembly 1100 / 1200 is fastened to the ocean floor 115 .
- a secondary containment assembly 1310 / 1330 / 1350 is lowered below the ocean surface 105 .
- step 1525 the secondary containment assembly 1310 / 1330 / 1350 is fastened between the primary containment assembly 1100 / 1200 and at least one containment vessel 1410 / 1440 on the ocean surface 105 .
- steps 1505 , 1510 , 1515 , 1520 and 1525 may be performed by at least one ROV.
- step 1530 the oil and/or gas 210 spewing from the defective BOP stack 120 ′ is stored in the at least one containment vessel 1410 / 1440 .
- FIG. 16 shows a side view of a primary containment assembly 1100 ′ or 1200 ′ configured to receive top kill cement and/or mud 1605 / 1610 from vessels 1615 via a first set of top kill input valves 1620 , while regulating the output of the leaking oil and/or gas being contained by a containment vessel 1625 via a large diameter high pressure valve 1630 mounted on an upper opening of the primary containment assembly 1100 ′ or 1200 ′ in accordance with a third embodiment of the present invention.
- the entire defective BOP stack 120 ′ is submerged in the cement and/or mud 1605 / 1610 , which is contained within the walls of the primary containment assembly 1100 ′ or 1200 ′.
- the underground well for which the defective BOP stack 120 ′ was designed to control should stop spewing the oil and/or gas 210 due to being completely surrounded in a deep layer of the cement and/or mud 1605 / 1610 that is sufficiently contained.
- the large diameter high pressure valve 1630 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105 ) to maintain an open position, a partially open position or a closed position, as desired.
- FIG. 17 shows a side view of a primary containment assembly 1700 having a hollow steel-reinforced wall 1705 configured to contain reinforcement material (e.g., cement and/or mud) received via a set of wall reinforcement input valves 1710 , and a hollow cavity 1715 configured to contain reinforcement material (e.g., top kill cement and/or mud) received via a second set of top kill input valves 1720 configured to receive top kill cement and/or mud to fill a bottom portion of the primary containment assembly 1700 , while regulating the output of the spewing oil and/or gas 210 via a large diameter high pressure valve 1725 mounted on an upper opening of the primary containment assembly 1700 that, optionally, may be heated by one or more heating elements 1730 .
- reinforcement material e.g., cement and/or mud
- a hollow cavity 1715 configured to contain reinforcement material (e.g., top kill cement and/or mud) received via a second set of top kill input valves 1720 configured to receive top kill cement and/
- the large diameter high pressure valve 1725 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105 ) to maintain an open position, a partially open position or a closed position, as desired.
- FIG. 18 is a flow diagram of a procedure 1800 for containing oil and/or gas 210 spewing from a defective BOP stack 120 ′ using the primary containment assembly 1700 of FIG. 17 .
- the primary containment assembly 1700 is lowered below the ocean surface 105 with the large diameter high pressure valve 1725 maintained in an open position.
- the heating element(s) 1730 is activated to reduce/eliminate buoyancy problems that may be caused by the spewing oil and/or gas 210 .
- the large diameter high pressure valve 1725 is configured with an opening of such a large diameter that the oil and/or gas 210 would pass through it without being sufficiently impeded by ice-like crystals (i.e., icy hydrates) that may form near the bottom of an ocean.
- the heating element(s) 1730 is used to insure that this is the case.
- the primary containment assembly 1700 is positioned on a portion of the ocean floor 115 that circumvents a defective BOP stack 120 ′. As previously described, the primary containment assembly 1700 has a hollow steel-reinforced wall 1705 .
- the hollow steel-reinforced wall 1705 of the primary containment assembly 1700 is filled with reinforcement material (e.g., cement and/or mud) via wall reinforcement input valves 1710 .
- a hollow inner cavity 1715 of the primary containment assembly 1700 in which the defective BOP stack 120 ′ resides, is filled with reinforcement material (e.g., top kill cement and/or mud) via a second set of top kill input valves 1720 .
- the upper opening of the primary containment assembly 1700 is filled with top kill cement and/or mud, and the large diameter high pressure valve 1725 is then closed.
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Abstract
A method and apparatus are described for containing oil and/or gas spewing from a defective blowout preventer (BOP) stack located on a floor of an ocean using BOPstopper assemblies. A BOPstopper containment assembly is submerged below a surface of the ocean and positioned on a portion of the ocean floor that circumvents the defective BOP stack. Then, a BOPstopper valve assembly is submerged below the ocean surface and positioned on top of the BOPstopper containment assembly to contain the oil and/or gas. Each of these BOPstopper assemblies may comprise a plurality of flooding valves used to submerge the BOPstopper assemblies. Furthermore, each of these BOPstopper assemblies may comprise a plurality of reinforcement material input valves for reinforcing the assemblies with reinforcement material (e.g., cement and/or mud). The flooding valves and the reinforcement material input valves may be remotely controlled from a vessel floating on the ocean surface.
Description
- This application is a continuation-in-part of U.S. patent application Ser. No. 12/822,324, filed Jun. 24, 2010, which is incorporated by reference as if fully set forth herein.
- This application generally relates to a method and apparatus for containing an oil and/or gas spill originating from the bottom of an ocean.
- An offshore platform, often referred to as an oil platform or an oil rig, is a large structure used in offshore drilling to house workers and machinery needed to drill wells in the ocean bed, extract oil and/or natural gas, process the produced fluids, and ship or pipe them to shore. Depending on the circumstances, the platform may be fixed to the ocean floor, may consist of an artificial island, or may float.
- Remote subsea wells may also be connected to a platform by flow lines and by umbilical connections. These subsea solutions may consist of single wells or of a manifold center for multiple wells.
-
FIG. 1 shows a deepsea drilling rig 100 on anocean surface 105 that processes oil and/orgas 110 obtained from below anocean floor 115 via a blowout preventer (BOP)stack 120 and ariser assembly 125. -
FIG. 2 illustrates a deepsea drilling rig 100′ after exploding due to adefective BOP stack 120′, causing an oil and/orgas spill 210 that pollutes the ocean and needs to be contained. The explosion may further cause theriser assembly 125 to break intoportions 125′ and 125″. - The Deepwater Horizon oil spill, also called the BP oil spill, the Gulf of Mexico oil spill or the Macondo blowout, was a massive oil spill in the Gulf of Mexico, and is considered the largest offshore spill to ever occur in U.S. history. The spill stemmed from a sea floor oil gusher that started with an oil well blowout on Apr. 20, 2010. The blowout caused a catastrophic explosion on the Deepwater Horizon offshore oil drilling platform that was situated about 40 miles (64 km) southeast of the Louisiana coast in the Macondo Prospect oil field. The explosion killed 11 platform workers and injured 17 others. Another 98 people survived without serious physical injury.
- Although numerous crews worked to block off bays and estuaries, using anchored barriers, floating containment booms, and sand-filled barricades along shorelines, the oil spill resulted in an environmental disaster characterized by petroleum toxicity and oxygen depletion, thus damaging the Gulf of Mexico fishing industry, the Gulf Coast tourism industry, and the habitat of hundreds of bird species, fish and other wildlife. A variety of ongoing efforts, both short and long term, were made to contain the leak and stop spilling additional oil into the Gulf, without immediate success.
- After the Deepwater Horizon drilling rig explosion on Apr. 20, 2010, a BOP should have activated itself automatically to avoid an oil spill in the Gulf of Mexico. The oil spill originated from a deepwater oil well 5,000 feet (1,500 m) below the ocean surface. A BOP is a large valve that has a variety of ways to choke off the flow of oil from a gushing oil well. If underground pressure forces oil or gas into the wellbore, operators can close the valve remotely (usually via hydraulic actuators) to forestall a blowout, and regain control of the wellbore. Once this is accomplished, often the drilling mud density within the hole can be increased until adequate fluid pressure is placed on the influx zone, and the BOP can be opened for operations to resume. The purpose of BOPs is to end oil gushers, which are dangerous and costly.
- Underwater robots were sent to manually activate the Deepwater Horizon's BOP without success. BP representatives suggested that the BOP may have suffered a hydraulic leak. However, X-ray imaging of the BOP showed that the BOP's internal valves were partially closed and were restricting the flow of oil. Whether the valves closed automatically during the explosion or were shut manually by remotely operated vehicle work is unknown.
- BOPs come in a variety of styles, sizes and pressure ratings, and usually several individual units compose a BOP stack. The BOP stack used for the Deepwater Horizon is quite large, consisting of a five-story-tall, 300-ton series of oil well control devices.
- The amount of oil that was discharged after the Deepwater Horizon drilling rig explosion is estimated to have ranged from 12,000 to 100,000 barrels (500,000 to 4,200,000 gallons) per day. The volume of oil flowing from the blown-out well was estimated at 12,000 to 19,000 barrels (500,000 to 800,000 gallons) per day, which had amounted to between 440,000 and 700,000 barrels (18,000,000 and 29,000,000 gallons). In any case, an oil slick resulted that covered a surface area of over 2,500 square miles (6,500 km2). Scientists had also discovered immense underwater plumes of oil not visible from the surface.
- Various solutions have been attempted to control or stop an undersea oil and/or gas spill. One solution is to use a heavy (e.g., over 100 tons) container dome over an oil well leak and pipe the oil to a storage vessel floating on the ocean surface. However, this solution has failed in the past due to hydrate crystals, which form when gas combines with cold water, blocking up a steel canopy at the top of the dome. Thus, excess buoyancy of the crystals clogged the opening at the top of the dome where the riser was to be connected.
- Another solution is to attempt to shut down the well completely using a technique called “top kill”. This solution involves pumping heavy drilling fluids into the defective BOP, causing the flow of oil from the well to be restricted, which then may be sealed permanently with cement and/or mud. However, this solution has not been successful in the past.
- It would be desirable to have a method and apparatus readily available to successfully contain oil and/or gas spewing from a defective BOP stack, until an alternate means is made available to permanently cap or bypass the oil and/or gas spill, or to repair/replace the defective BOP stack.
- A method and apparatus are described for containing oil and/or gas spewing from a defective blowout preventer (BOP) stack located on a floor of an ocean using BOPstopper assemblies. A BOPstopper containment assembly is submerged below a surface of the ocean and positioned on a portion of the ocean floor that circumvents the defective BOP stack. Then, a BOPstopper valve assembly is submerged below the ocean surface and positioned on top of the BOPstopper containment assembly to contain the oil and/or gas.
- The BOPstopper containment assembly may comprise a plurality of flooding valves. At least one of the flooding valves may be opened to submerge the BOPstopper containment assembly below the ocean surface. The at least one flooding valve may be closed after the BOPstopper containment assembly is positioned on the portion of the ocean floor that circumvents the defective BOP stack. The flooding valves of the BOPstopper containment assembly may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- The BOPstopper containment assembly may comprise a hollow wall having a reinforcement cavity, and a plurality of reinforcement material input valves. The BOPstopper containment assembly may be reinforced by filling the reinforcement cavity of the hollow wall of the BOPstopper containment assembly with reinforcement material via at least one of the reinforcement material input valves. The reinforcement material may comprise at least one of cement or mud. The reinforcement material input valves of the BOPstopper containment assembly may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- The BOPstopper valve assembly may also comprise a plurality of flooding valves. At least one of the flooding valves may be opened to submerge the BOPstopper valve assembly below the ocean surface. The at least one flooding valve may be closed after the BOPstopper valve assembly is positioned on top of the BOPstopper containment assembly. The flooding valves of the BOPstopper valve assembly may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- The BOPstopper valve assembly may comprise a hollow cavity and a plurality of reinforcement material input valves. The BOPstopper valve assembly may be reinforced by filling the hollow cavity of the BOPstopper valve assembly with reinforcement material via at least one of the reinforcement material input valves. The reinforcement material may comprise at least one of cement or mud. The reinforcement material input valves of the BOPstopper valve assembly may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- The BOPstopper valve assembly may further comprise at least one large diameter high pressure valve that is surrounded by the hollow cavity. The large diameter high pressure valve may be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
- The large diameter high pressure valve is maintained in an open position when the BOPstopper valve assembly is submerged below the ocean surface. The large diameter high pressure valve is maintained in a closed position after the BOPstopper valve assembly is positioned on top of the BOPstopper containment assembly.
- A more detailed understanding may be had from the following description, given by way of example in conjunction with the accompanying drawings wherein:
-
FIG. 1 shows a simplified diagram of a deep sea drilling rig on a surface of an ocean that processes oil and/or gas received from a BOP stack located on a floor of the ocean; -
FIG. 2 shows a deep sea drilling rig after exploding due to a defective BOP stack, and causing an oil and/or gas spill that needs to be contained; -
FIG. 3A shows a top view of a cylindrical BOPstopper containment assembly that is configured in accordance with a first embodiment of the present invention; -
FIG. 3B shows a side view of the cylindrical BOPstopper containment assembly ofFIG. 3A ; -
FIG. 3C is a block diagram of a communications and control unit (CCU) used with the cylindrical BOPstopper containment assembly ofFIGS. 3A and 3B ; -
FIG. 3D shows a top view of the defective BOP stack and an outline of the outer wall of a cylindrical BOPstopper containment assembly circumventing the defective BOP stack on a portion of the ocean floor; -
FIG. 3E shows a cross-sectional view of the cylindrical BOPstopper containment assembly ofFIGS. 3A and 3B ; -
FIG. 3F shows a cross-sectional view of a reinforcement cavity in a hollow wall of the cylindrical BOPstopper containment assembly ofFIG. 3E while being filled with reinforcement material (e.g., cement and/or mud); -
FIG. 3G shows a top view of a square cuboid BOPstopper containment assembly that is configured in accordance with the first embodiment of the present invention; -
FIG. 3H shows a side view of the square cuboid BOPstopper containment assembly ofFIG. 3G ; -
FIG. 3I is a block diagram of a CCU used with the square cuboid BOPstopper containment assembly ofFIGS. 3G and 3H ; -
FIG. 4A shows a top view of a cylindrical BOPstopper valve assembly that is configured in accordance with a first embodiment of the present invention; -
FIG. 4B shows a side view of the cylindrical BOPstopper valve assembly ofFIG. 4A ; -
FIG. 4C is a block diagram of a CCU used with the cylindrical BOPstopper valve assembly ofFIGS. 4A and 4B ; -
FIG. 4D shows a top view of a square cuboid BOPstopper valve assembly that is configured in accordance with the first embodiment of the present invention; -
FIG. 4E shows a side view of the square cuboid BOPstopper valve assembly ofFIG. 4D ; -
FIG. 4F is a block diagram of a CCU used with the square cuboid BOPstopper valve assembly ofFIGS. 4D and 4E ; -
FIG. 5 shows a cross-sectional view of the cylindrical BOPstopper valve assembly positioned on top of the reinforced cylindrical BOPstopper containment assembly while a large diameter high pressure valve of the cylindrical BOPstopper valve assembly is maintained in an open position; -
FIG. 6 shows a cross-sectional view of a hollow cavity of the cylindrical BOPstopper valve assembly while being filled with reinforcement material (e.g., cement and/or mud); -
FIG. 7 shows a cross-sectional view of the reinforced cylindrical BOPstopper valve assembly positioned on top of the reinforced cylindrical BOPstopper containment assembly while the large diameter high pressure valve of the cylindrical BOPstopper valve assembly is maintained in an closed position; -
FIGS. 8A and 8B show a side view of the reinforced cylindrical BOPstopper valve assembly positioned on top of the reinforced cylindrical BOPstopper containment assembly; -
FIGS. 9A and 9B show a side view of a reinforced square cuboid BOPstopper valve assembly positioned on top of the reinforced square cuboid BOPstopper containment assembly; -
FIGS. 10A and 10B , taken together, are a flow diagram of a procedure for containing oil and/or gas spewing from a defective BOP stack using a BOPstopper containment assembly and a BOPstopper valve assembly in accordance with the first embodiment of the present invention; -
FIG. 11A shows a primary containment assembly including a self-fastening mechanism having fastening devices and sealing devices in accordance with a second embodiment of the present invention; -
FIG. 11B shows a top view of the primary containment assembly ofFIG. 11A ; -
FIG. 11C shows a bottom view of the primary containment assembly ofFIG. 11A including activated fastening devices and sealing devices; -
FIG. 11D shows a side view of the primary containment assembly ofFIG. 11A circumventing the defective BOP stack and fastened to the ocean floor via the fastening elements of the self-fastening mechanism; -
FIG. 12A shows a primary containment assembly including a self-fastening mechanism having a set of blades in accordance with an alternative to the second embodiment of the present invention; -
FIG. 12B shows a top view of the primary containment assembly ofFIG. 12A ; -
FIG. 12C shows a bottom view of the primary containment assembly ofFIG. 12A with the blades of the self-fastening mechanism rotating; -
FIG. 12D shows a side view of the primary containment assembly ofFIG. 12A circumventing the defective BOP stack and fastened to the ocean floor via the blades of the self-fastening mechanism; -
FIGS. 13A , 13B and 13C show examples of various secondary containment assemblies configured to be fastened between the primary containment assembly and at least one containment vessel floating on the ocean surface; -
FIG. 14A shows a side view of the assembled first and second containment assemblies connected between the ocean floor and a containment vessel; -
FIG. 14B shows a side view of assembled first and second containment assemblies connected between the ocean floor and an oil and/or gas routing device that is controlled to allow the oil and/or gas to be routed via one or more flexible containment sections in order to be stored by one or more respective containment vessels; -
FIG. 15 is a flow diagram of a procedure for containing oil and/or gas spewing from a defective BOP stack using the primary and secondary containment assemblies ofFIGS. 11A-11D , 12A-12D and 13A-13C; -
FIG. 16 shows a side view of a primary containment assembly configured to receive “top kill” cement and/or mud via a first set of top kill valves, while regulating the output of the leaking oil and/or gas via a valve on an upper opening in accordance with a third embodiment of the present invention; -
FIG. 17 shows a side view of a primary containment assembly having a hollow steel-reinforced wall configured to receive wall reinforcement material via a set of wall reinforcement valves, and a second set of top kill valves configured to receive top kill cement and/or mud to fill a bottom portion of the primary containment assembly, while regulating the output of the leaking oil and/or gas via a valve on a heated upper opening in accordance with a fourth embodiment of the present invention; and -
FIG. 18 is a flow diagram of a procedure for containing oil and/or gas spewing from a defective BOP stack using the primary containment assembly ofFIG. 17 . - The present invention described herein, otherwise known as the “BOPstopper”, proposes the undertaking of a potentially expensive method and apparatus, due to the substantially large size of a defective BOP stack that must be circumvented and sealed under thousands of feet of water in response to a catastrophic event, such as the Deepwater Horizon oil spill. However, it has recently been discovered that there are currently no procedures or apparatus available for effectively dealing with such events, and that the consequences of other similar events occurring over a period of time have the potential to destroy life on Earth as we know it.
- Instead of tapping off various points of the
defective BOP stack 120′, the BOPstopper uses its various embodiments to substantially isolate theBOP stack 120′ from the ocean by completely circumventing and encasing thedefective BOP stack 120′. Thus, the amount of ocean that mixes with the spewing oil and/orgas 210 is minimized. Furthermore, a combination of one or more heating elements and measurement equipment, as well as the addition of one or more valves, allows the BOPstopper to better contain and/or control the spewing oil and/orgas 210. - The BOPstopper contains oil from a subsea oil and/or gas blowout. An apparatus constructed from this design will mitigate the spread of oil slicks from subsea oil and/or gas blowouts, with the benefit of allowing oil and/or gas exploration to proceed with diminished risk of environmental damage. The BOPstopper has particular application where coastal wetlands or other delicate ecosystems may potentially be damaged by an oil spill. There currently appears to be no alternative method or apparatus for containing the oil from such blowouts. The BOPstopper has market potential in basins subject to offshore oil exploration where deepwater rigs are active.
- The reinforcement material mentioned herein, such as cement, is used underwater for many purposes including, for example, in pools, dams, piers, retaining walls and tunnels. There are many factors that must be controlled for successful application of cement underwater. Of these, the hardening time, that between mixing and solidification, is particularly important because, if it is too long, the cement does not solidify at all but simply dissolves in the surrounding water, herein the environmental water. Compositions containing exothermic micro particles have been found very advantageous for underwater cement applications. The exothermic micro particles produce very high rates of exothermic heating when combined with base cement and water. The exothermic heat produced is sufficient to raise the reaction temperature to a point where the cement composition solidifies underwater, even in cold environmental water.
-
FIG. 3A shows a top view of a cylindricalBOPstopper containment assembly 300 that is configured in accordance with a first embodiment of the present invention. The cylindricalBOPstopper containment assembly 300 has ahollow wall 302 comprising areinforcement cavity 304 between aninner wall 306 and anouter wall 308, as well as a set of reinforcementmaterial input valves 310 located near the top perimeter of thehollow wall 302 for filling thereinforcement cavity 304 with reinforcement material (e.g., cement and/or mud). - The
inner wall 306 and theouter wall 308 may be steel-reinforced, or consist of any other metal of a suitable strength and thickness. The cylindricalBOPstopper containment assembly 300 may further comprise at least one seal (e.g., aninner seal 312 and an outer seal 314) that is mounted along the entire top perimeter of thehollow wall 302. Optionally, the cylindricalBOPstopper containment assembly 300 may include one ormore mud flaps 316 to stop the cylindricalBOPstopper containment assembly 300 from sinking too far below theocean floor 115, especially after thereinforcement cavity 304 is filled with reinforcement material. The cylindricalBOPstopper containment assembly 300 may further comprise aCCU 318 and at least oneantenna 320. - A more sophisticated system of
mud flaps 316 may be implemented, whereby the mud flaps 316 may be located at different heights along theouter wall 308 of the cylindricalBOPstopper containment assembly 300, and may be remotely activated (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105) to protrude or retract, or be raised or lowered, to control the depth of the cylindricalBOPstopper containment assembly 300 as more weight is added on top of it in order to contain the spewing oil and/orgas 210. Furthermore, the mud flaps 316 may be designed to break off, based on how much weight is applied to the top perimeter of thehollow wall 302 of the cylindricalBOPstopper containment assembly 300. - The cylindrical
BOPstopper containment assembly 300 is submerged below theocean surface 105 and positioned on a portion of theocean floor 115 that circumvents adefective BOP stack 120′. Although it may be possible to position the cylindricalBOPstopper containment assembly 300 to circumvent thedefective BOP stack 120′ if theriser assembly 125 remains in a vertical position by letting theriser assembly 125 pass through the center of the cylindricalBOPstopper containment assembly 300, theriser assembly 125 needs to be disconnected (i.e., cut off) near the top of thedefective BOP stack 120′ if a catastrophic event caused theriser assembly 125 to collapse (i.e., fold over), as what occurred due to the Deepwater Horizon drilling rig explosion (seeFIG. 2 ). - Alternatively, the cylindrical
BOPstopper containment assembly 300 may consist of a plurality of sections and/or components that may be constructed and stored onshore close to areas where deepwater rigs are active. The sections and/or components may include seals and/or gaskets, and may be assembled together as they are submerged just under theocean surface 105. -
FIG. 3B shows a side view of the cylindricalBOPstopper containment assembly 300 ofFIG. 3A . As shown inFIG. 3B , the cylindricalBOPstopper containment assembly 300 further comprises anannular rim 322 that connects the bottom of theinner wall 306 to the bottom of theouter wall 308. Optionally, the cylindricalBOPstopper containment assembly 300 may comprise a plurality offlooding valves 324, which may be located on theouter wall 308 and/or on theannular rim 322. The cylindricalBOPstopper containment assembly 300 may further comprise a plurality of hoistrings 326 that may be used during the submersion and positioning of the cylindricalBOPstopper containment assembly 300 by a vessel floating on theocean surface 105, and/or by at least one remotely operated vehicle (ROV). - Preferably, the reinforcement
material input valves 310 and theflooding valves 324 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105) to maintain an open position, a partially open position or a closed position, as desired. -
FIG. 3C is a block diagram of theCCU 318 of the cylindricalBOPstopper containment assembly 300 ofFIGS. 3A and 3B . As shown inFIG. 3C , theCCU 318 includes aprocessor 328, atransceiver 330, and a rechargeable battery/wired interface 332. Theprocessor 328 is configured to control the reinforcementmaterial input valves 310 and theflooding valves 324 of the cylindricalBOPstopper containment assembly 300, either wirelessly or via a wired interface, such that they may be maintained in an open position, a partially open position or a closed position, as desired. TheCCU 318 may communicate with a vessel floating on theocean surface 105 via thetransceiver 330 and the at least oneantenna 320. A ROV and/or a vessel floating on theocean surface 105 may recharge thebattery 332 and/or directly provide the necessary voltage and current, via aninput jack 334, to power theprocessor 328 and thetransceiver 330. Various communication techniques, such as very low frequency radio techniques coupled with digital signal processing and digitally modulated radio communications methods, may be implemented to facilitate communications via theantenna 320. Alternatively, various types of radio frequency (RF), optic and acoustic communication methods, as well as wired (umbilical) technologies, may be implemented for deep water communications between the vessel floating on theocean surface 105 and the cylindricalBOPstopper containment assembly 300. -
FIG. 3D shows a top view of thedefective BOP stack 120′ and aportion 340 of theocean floor 115 that the cylindricalBOPstopper containment assembly 300 ofFIGS. 3A and 3B may be positioned on to circumvent thedefective BOP stack 120′. It would be desirable to grade theportion 340 of theocean floor 115 surrounding thedefective BOP stack 120′, which is to be circumvented by theouter wall 308 of the cylindricalBOPstopper containment assembly 300, before the cylindricalBOPstopper containment assembly 300 is positioned on it, in order to optimize the reduction of the pollution of the ocean caused by the oil and/orgas 210 spewing from thedefective BOP stack 120′. Such ocean floor grading may be performed by at least one ROV. -
FIG. 3E shows a cross-sectional view of the cylindricalBOPstopper containment assembly 300 ofFIGS. 3A and 3B . Theinner seal 312 and theouter seal 314 are shown being mounted along the entire top perimeter of thehollow wall 302 of the cylindricalBOPstopper containment assembly 300. The reinforcementmaterial input valves 310 are also shown as being located near the top perimeter of thehollow wall 302 of the cylindricalBOPstopper containment assembly 300. -
FIG. 3F shows a cross-sectional view of the reinforcement cavity 304 (above theannular rim 322 of the cylindrical BOPstopper containment assembly 300) being filled with reinforcement material (e.g., cement and/or mud). The advantage of the BOPstopper is that the extraordinary structural bulk and strength that is required to contain the pressure encountered under the ocean due to the spewing oil and/orgas 210 may be added after the components of a relatively enormous oil/gas containment structure are transported, submerged and positioned on theocean floor 115. - Although a cylindrical geometry has been proposed for the BOPstopper containment assembly to minimize leakage of the spewing oil and/or
gas 210 at joints (i.e., corners) of a containment system, any other geometric configuration may be used. For example,FIG. 3G shows a top view of a square cuboidBOPstopper containment assembly 350 that is also configured in accordance with the first embodiment of the present invention, andFIG. 3H shows a side view of the square cuboidBOPstopper containment assembly 350 ofFIG. 3G . - As shown in
FIG. 3G , the square cuboidBOPstopper containment assembly 350 has ahollow wall 352 comprising areinforcement cavity 354 between aninner wall 356 and anouter wall 358, as well as a set of reinforcementmaterial input valves 360 located near the top perimeter of thehollow wall 352 for filling thereinforcement cavity 354 with reinforcement material (e.g., cement and/or mud). The square cuboidBOPstopper containment assembly 350 may further comprise at least one seal (e.g., aninner seal 362 and an outer seal 364) that is mounted along the entire top perimeter of the widehollow wall 352. Optionally, the square cuboidBOPstopper containment assembly 350 may include one ormore mud flaps 366 to stop the square cuboidBOPstopper containment assembly 350 from sinking too far below theocean floor 115, especially after thereinforcement cavity 354 is filled with reinforcement material. The square cuboidBOPstopper containment assembly 350 may further comprise aCCU 368 and at least oneantenna 370. - As shown in
FIG. 3H , the square cuboidBOPstopper containment assembly 350 further comprises asquare rim 372 that connects the bottom of theinner wall 356 to the bottom of theouter wall 358. Optionally, the square cuboidBOPstopper containment assembly 350 may comprise a plurality offlooding valves 374, which may be located on theouter wall 358 and/or on thesquare rim 372. The square cuboidBOPstopper containment assembly 350 may further comprise a plurality of hoistrings 376 that may be used during the submersion and positioning of the square cuboidBOPstopper containment assembly 350 by a vessel floating on theocean surface 105, and/or by at least one ROV. -
FIG. 3I is a block diagram of theCCU 368 of the square cuboidBOPstopper containment assembly 350 ofFIGS. 3G and 3H . As shown inFIG. 3I , theCCU 368 includes aprocessor 378, atransceiver 380, and a rechargeable battery/wired interface 382. Theprocessor 378 is configured to control the reinforcementmaterial input valves 360 and theflooding valves 374 of the square cuboidBOPstopper containment assembly 350, either wirelessly or via a wired interface, such that they may be maintained in an open position, a partially open position or a closed position, as desired. TheCCU 368 may communicate with a vessel floating on theocean surface 105 via thetransceiver 380 and the at least oneantenna 370. A ROV and/or a vessel floating on theocean surface 105 may recharge thebattery 382 and/or directly provide the necessary voltage and current, via aninput jack 384, to power theprocessor 378 and thetransceiver 380. Various communication techniques, such as very low frequency radio techniques coupled with digital signal processing and digitally modulated radio communications methods, may be implemented to facilitate communications via theantenna 370. Alternatively, various types of radio frequency (RF), optic and acoustic communication methods, as well as wired (umbilical) technologies, may be implemented for deep water communications between the vessel floating on theocean surface 105 and the cylindricalBOPstopper containment assembly 300. -
FIG. 4A shows a top view of a cylindricalBOPstopper valve assembly 400 that is configured in accordance with the first embodiment of the present invention. The cylindricalBOPstopper valve assembly 400 may have the same diameter as the cylindricalBOPstopper containment assembly 300 shown inFIGS. 3A and 3B . The cylindricalBOPstopper valve assembly 400 comprises at least one large diameterhigh pressure valve 402, at least one seal (e.g., aninner seal 404 and an outer seal 406) that is mounted along the entire bottom perimeter of the cylindricalBOPstopper valve assembly 400, as well as a plurality of reinforcementmaterial input valves 410. - Preferably, the large diameter
high pressure valve 402 and the reinforcementmaterial input valves 410 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105) to maintain an open position, a partially open position or a closed position, as desired. - In its open position, the
high pressure valve 402 is configured with an opening of such a large diameter that the spewing oil and/orgas 210 would pass through it without being sufficiently impeded by ice-like crystals (i.e., icy hydrates) that may form near the bottom of an ocean. - Still referring to
FIG. 4A , the cylindricalBOPstopper valve assembly 400 further comprises ahollow cavity 412 that surrounds the large diameterhigh pressure valve 402. Thehollow cavity 412 is configured to be filled with reinforcement material (e.g., cement and/or mud) via at least one of the reinforcementmaterial input valves 410. The cylindricalBOPstopper valve assembly 400 may also comprise apressure monitor unit 414 for monitoring the pressure of the oil and/orgas spill 210. The cylindricalBOPstopper valve assembly 400 may further comprise aCCU 416 and at least oneantenna 418. -
FIG. 4B shows a side view of the cylindricalBOPstopper valve assembly 400 ofFIG. 4A . As shown inFIG. 4B , thehollow cavity 412 of the cylindricalBOPstopper valve assembly 400 comprises afloor 420, aceiling 422 and awall 424. Thefloor 420,ceiling 422 andwall 424 of thehollow cavity 412 of the cylindricalBOPstopper valve assembly 400 may be steel-reinforced, or consist of any other metal of a suitable strength and thickness. Optionally, the cylindricalBOPstopper valve assembly 400 may comprise a plurality offlooding valves 426, which may be located on thewall 424 and/or on thefloor 420 of thehollow cavity 412. Preferably, theflooding valves 426 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105) to maintain an open position, a partially open position or a closed position, as desired. - The cylindrical
BOPstopper valve assembly 400 may also comprise a plurality of hoistrings 428 that may be used during the submersion and positioning of the cylindricalBOPstopper valve assembly 400 by using a vessel floating on theocean surface 105, and/or by using at least one ROV. In addition, the cylindricalBOPstopper valve assembly 400 comprises apressure sensor 430, located near thefloor 420 of thehollow cavity 412 just inside the entrance to the large diameterhigh pressure valve 402, that communicates with thepressure monitor unit 414, and optionally, with a vessel floating on theocean surface 105, via a wired connection and/or a wireless communication link. Optionally, the cylindricalBOPstopper valve assembly 400 may further comprise one or more heating element(s) 432 for heating up thelarge diameter valve 402. Preferably, the heating element(s) 432 may be configured to be remotely activated (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105). -
FIG. 4C is a block diagram of theCCU 416 of the cylindricalBOPstopper valve assembly 400 ofFIGS. 4A and 4B . As shown inFIG. 4C , theCCU 416 includes aprocessor 434, atransceiver 436, and a rechargeable battery/wired interface 438. Theprocessor 434 is configured to control the reinforcementmaterial input valves 410 and theflooding valves 426 of the cylindricalBOPstopper valve assembly 400, either wirelessly or via a wired interface, such that they may be maintained in an open position, a partially open position or a closed position, as desired. Theprocessor 434 may also be configured to control the at least oneheating element 432, either wirelessly or via a wired interface. The BOPstoppervalve assembly CCU 416 may communicate with a vessel floating on theocean surface 105 via thetransceiver 436 and the at least oneantenna 418. A ROV and/or a vessel floating on theocean surface 105 may recharge thebattery 438 and/or directly provide the necessary voltage and current, via aninput jack 440, to power theprocessor 434 and thetransceiver 436. Various communication techniques, such as very low frequency radio techniques coupled with digital signal processing and digitally modulated radio communications methods, may be implemented to facilitate communications via theantenna 418. Alternatively, various types of radio frequency (RF), optic and acoustic communication methods, as well as wired (umbilical) technologies, may be implemented for deep water communications between the vessel floating on theocean surface 105 and the cylindricalBOPstopper valve assembly 400. - Although a cylindrical geometry has been proposed for the
BOPstopper valve assembly 400 to minimize leakage of the spewing oil and/orgas 210 at joints (i.e., corners) of a containment system, any other geometric configuration may be used. For example,FIG. 4D shows a top view of a square cuboidBOPstopper valve assembly 450 that is configured in accordance with the first embodiment of the present invention, andFIG. 4E shows a side view of the square cuboidBOPstopper valve assembly 450 ofFIG. 4D . - As shown in
FIG. 4D , the square cuboidBOPstopper valve assembly 450 comprises at least one large diameterhigh pressure valve 452, at least one seal (e.g., aninner seal 454 and an outer seal 456) that is mounted along the entire bottom perimeter of the square cuboidBOPstopper valve assembly 450, as well as a plurality of reinforcementmaterial input valves 460. The square cuboidBOPstopper valve assembly 450 further comprises ahollow cavity 462 that surrounds the large diameterhigh pressure valve 452. Thehollow cavity 462 is configured to be filled with reinforcement material (e.g., cement and/or mud) via at least one of the reinforcementmaterial input valves 460. The square cuboidBOPstopper valve assembly 450 also comprises apressure monitor unit 464 for monitoring the pressure of the oil and/orgas spill 210. The square cuboidBOPstopper containment assembly 450 further comprises aCCU 466 and at least oneantenna 468. - As shown in
FIG. 4E , thehollow cavity 462 of the square cuboidBOPstopper valve assembly 450 comprises afloor 470, aceiling 472 and awall 474. Optionally, the square cuboidBOPstopper valve assembly 450 may comprise a plurality offlooding valves 476, which may be located on thewall 474 and/or on thefloor 470 of thehollow cavity 462. The square cuboidBOPstopper valve assembly 450 may also comprise a plurality of hoistrings 478 that may be used during the submersion and positioning of the square cuboidBOPstopper valve assembly 450 by using a vessel floating on theocean surface 105, and/or by using at least one ROV. In addition, the square cuboidBOPstopper valve assembly 450 comprises apressure sensor 480, located near thefloor 470 of thehollow cavity 462 just inside the entrance to the large diameterhigh pressure valve 402, that communicates with thepressure monitor unit 464, and optionally, with a vessel floating on theocean surface 105, via a wired connection and/or a wireless communication link. Optionally, the square cuboidBOPstopper valve assembly 400 may further comprise one or more heating element(s) 482 for heating up thelarge diameter valve 452. Preferably, the heating element(s) 482 may be configured to be remotely activated (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105). -
FIG. 4F is a block diagram of theCCU 466 of the square cuboidBOPstopper valve assembly 450 ofFIGS. 4D and 4E . As shown inFIG. 4F , theCCU 466 includes aprocessor 484, atransceiver 486, and a rechargeable battery/wired interface 488. Theprocessor 484 is configured to control the reinforcementmaterial input valves 460 and theflooding valves 476 of the square cuboidBOPstopper valve assembly 450, either wirelessly or via a wired interface, such that they may be maintained in an open position, a partially open position or a closed position, as desired. Theprocessor 484 may also be configured to control the at least oneheating element 482, either wirelessly or via a wired interface. TheCCU 466 may communicate with a vessel floating on theocean surface 105 via thetransceiver 486 and the at least oneantenna 488. A ROV and/or a vessel floating on theocean surface 105 may recharge thebattery 488 and/or directly provide the necessary voltage and current, via aninput jack 490, to power theprocessor 484 and thetransceiver 486. Various communication techniques, such as very low frequency radio techniques coupled with digital signal processing and digitally modulated radio communications methods, may be implemented to facilitate communications via theantenna 468. Alternatively, various types of radio frequency (RF), optic and acoustic communication methods, as well as wired (umbilical) technologies, may be implemented for deep water communications between the vessel floating on theocean surface 105 and the cylindricalBOPstopper valve assembly 400. -
FIG. 5 shows a cross-sectional view of the cylindricalBOPstopper valve assembly 400 ofFIGS. 4A and 4B positioned on top of the cylindricalBOPstopper containment assembly 300 after it is reinforced (hereinafter referred to as the reinforced cylindricalBOPstopper containment assembly 300′). As shown inFIG. 5 , the at least one large diameterhigh pressure valve 402 protrudes through theceiling 422 of thehollow cavity 412. - When the cylindrical
BOPstopper valve assembly 400 is submerged below theocean surface 105 and is positioned on top of the reinforced cylindricalBOPstopper containment assembly 300′, the large diameterhigh pressure valve 402 is maintained in a fully open position such that the oil and/orgas 210 spewing from thedefective BOP stack 120′ is allowed to pass through the large diameterhigh pressure valve 402. By leaving at least onehigh pressure valve 402 of a suitable diameter in a fully open position, buoyancy problems due to the pressure of the spewing oil and/orgas 210 may be minimized, while thehollow cavity 412 of the cylindricalBOPstopper valve assembly 400, surrounding the large diameterhigh pressure valve 402, is filled with reinforcement material (e.g., cement and/or mud). -
FIG. 6 shows a cross-sectional view of thehollow cavity 412 of the cylindricalBOPstopper valve assembly 400 being filled with reinforcement material (e.g., cement and/or mud). -
FIG. 7 shows a cross-sectional view of the cylindricalBOPstopper valve assembly 400 after it has been filled with the reinforcement material (hereinafter referred to as the reinforced BOPstoppercylindrical valve assembly 400′), and its large diameterhigh pressure valve 402 has been closed, resting on top of the reinforced cylindricalBOPstopper containment assembly 300′. -
FIGS. 8A and 8B show a side view of the reinforced cylindricalBOPstopper valve assembly 400′ positioned on top of the reinforced cylindricalBOPstopper containment assembly 300′. -
FIGS. 9A and 9B show a side view of a reinforced square cuboidBOPstopper valve assembly 450′ positioned on top of the reinforced square cuboidBOPstopper containment assembly 350′. - A
riser assembly 125 may be attached between the large diameterhigh pressure valve 402/452 and a containment vessel floating on theocean surface 105. The large diameterhigh pressure valve 402/452 may then be opened to allow the oil and/orgas 210 to be stored by the containment vessel. - The pressure of the oil and/or
gas 210 may be monitored by thepressure monitor unit 414/464 after the large diameterhigh pressure valve 402/452 is closed. The large diameterhigh pressure valve 402/452 may be automatically opened by thepressure monitor unit 414/464 when thepressure sensor 430/480 detects a pressure within the reinforcedBOPstopper containment assembly 300′/400′ that reaches or exceeds a predetermined threshold. - The
hollow wall 302/352 of the reinforcedBOPstopper containment assembly 300′/350′ may be of such a large width (e.g., 10 feet or more), that it may be unlikely that the reinforcedBOPstopper containment assembly 300′/350′ would sink very far below theocean floor 115, and thus the mud flaps 316/366 may not be necessary. However, the extreme weight applied to the top perimeter of thehollow wall 302/352 of the reinforcedBOPstopper containment assembly 300′/350′ may be so great, that the reinforcedBOPstopper containment assembly 300′/350′ may sink many feet below theocean floor 115. Thus, it is important to perform initial tests and analysis in a laboratory setting to determine more precise and optimal dimensions that may be applicable to a particular BOP stack failure situation. -
FIGS. 10A and 10B , taken together, are a flow diagram of aprocedure 1000 for containing oil and/or gas spewing from adefective BOP stack 120′ using aBOPstopper containment assembly 300′/350′ and a BOPstoppercylindrical valve assembly 400′/450′ in accordance with the first embodiment of the present invention. - In
step 1005 of theprocedure 1000 ofFIG. 10A , aBOPstopper containment assembly 300/350, having ahollow wall 302/352 with areinforcement cavity 304/354, is submerged below theocean surface 105 by opening at least one of a first plurality offlooding valves 324/374 on theBOPstopper containment assembly 300/350 to fill thereinforcement cavity 304/354 with water from the ocean. Instep 1010, theBOPstopper containment assembly 300/350 is positioned on a portion of anocean floor 115 that circumvents adefective BOP stack 120′. Instep 1015, the at least one of the first plurality offlooding valves 324/374 on theBOPstopper containment assembly 300/350 is closed. Instep 1020, reinforcement material (e.g., cement and/or mud) is pumped into at least one of a first plurality of reinforcementmaterial input valves 310/360 of theBOPstopper containment assembly 300/350 until thereinforcement cavity 304/354 of thehollow wall 302/352 of theBOPstopper containment assembly 300/350 is filled with the reinforcement material. Instep 1025, aBOPstopper valve assembly 400/450, having ahollow cavity 412/462 that surrounds at least one large diameterhigh pressure valve 402/452, is submerged below theocean surface 105 by opening at least one of a second plurality offlooding valves 426/476 on theBOPstopper valve assembly 400/450 to fill thehollow cavity 412/462 with water from the ocean. - In
step 1030 of theprocedure 1000 ofFIG. 4B , theBOPstopper valve assembly 400/450 is positioned on top of the reinforcedBOPstopper containment assembly 300′/350′ such that at least onefirst seal 404/406/454/456, mounted along the entire bottom perimeter of theBOPstopper valve assembly 400/450, mates with at least onesecond seal 312/314/362/364 mounted along the entire top perimeter of the reinforcedBOPstopper containment assembly 300′/350′, and the oil and/orgas 210 spewing from thedefective BOP stack 120′ is allowed to pass through the large diameterhigh pressure valve 402/452, which is maintained in an open position. Instep 1035, the at least one of the second plurality offlooding valves 426/476 on theBOPstopper valve assembly 400/450 is closed. Instep 1040, reinforcement material (e.g., cement and/or mud) is pumped into at least one of a second plurality of reinforcementmaterial input valves 410/460 on theBOPstopper valve assembly 400/450 until thehollow cavity 412/462 of theBOPstopper valve assembly 400/450 is filled with the reinforcement material, causing thefirst seal 404/406/454/456 and thesecond seal 312/314/362/364 to compress together. Instep 1045, the large diameterhigh pressure valve 402/452 of the reinforcedBOPstopper valve assembly 400′/450′ is slowly closed, while using thepressure monitor unit 414/464 to monitor the pressure within the reinforcedBOPstopper containment assembly 300′/350′, until the oil and/orgas 210 stops flowing through the large diameterhigh pressure valve 402/452. - As an example, the diameter/width of the
BOPstopper containment assembly 300/350 may be on the order of 80 feet, and the height of theBOPstopper containment assembly 300/350 may be on the order of 60 feet. The width of thehollow wall 302/352 of theBOPstopper containment assembly 300/350 may be on the order of 10 feet. The diameter/width of theBOPstopper valve assembly 400/450 may be the same as the diameter/width of theBOPstopper containment assembly 300/350, and the height of theBOPstopper valve assembly 400/450 may be on the order of 80 feet. Thus, thehollow cavity 412 of the of the cylindricalBOPstopper valve assembly 400 may be able to hold on the order of 400,000 cubic feet of reinforcement material (e.g., cement and/or mud), whereas thehollow cavity 462 of the square cuboidBOPstopper valve assembly 450 may be able to hold on the order of 510,000 cubic feet of reinforcement material. - For example, depending upon the type of reinforcement material used, which may range from 90 to 140 pounds per cubic foot, and how much is poured into the
hollow cavity 412 of the cylindricalBOPstopper valve assembly 400, the weight applied to the top perimeter of the reinforced cylindricalBOPstopper containment assembly 300′ to counter the pressure of the spewing oil and/orgas 210 may be on the order of 25,000 tons. The enormous mass of the reinforcedcylindrical valve assembly 400′, combined with the large mass of the cement-filledreinforcement cavity 304 of the reinforcedcylindrical containment assembly 300′, should insure that the oil and/orgas 210 would not be able to pass through the bottom of the reinforcedcylindrical containment assembly 300′, since theannular rim 322 would be applying a huge force to theocean floor 115, causing it to compress and form an watertight seal with the bottom of the reinforcedcylindrical containment assembly 300′. - The diameter of the
valve 402/452 is critical to the first embodiment of the present invention, and may be on the order of six feet. For example, the diameter of thevalve 402/452 may be similar to the diameter of jet flow gates used for dams, such as the Hoover Dam, which may range in diameter from 68 to 90 inches. Thevalve 402/452 is designed to operate under high pressure (e.g., 10,000-15,000 pounds per square inch (PSI)), and may include a steel plate that may be opened or closed to either prevent or allow the spewing oil and/orgas 210 to be discharged. - As would be known by one of ordinary skill, smaller or larger dimensions may be applicable to the components used to implement the various embodiments of the BOPstopper in accordance with the particular BOP failure situation that the
assemblies - The first embodiment of the present invention, as described above in conjunction with
FIGS. 3A-3I , 4A-4F, 5-7, 8A, 8B, 9A, 9B, 10A and 10B, may incorporate any of the features of the additional embodiments described below. For example, it may be desired to add top kill input valves to allow top kill cement and/or mud to flow within theinner wall 306 of the cylindricalBOPstopper containment assembly 300, or to fasten a secondary containment assembly between the large diameterhigh pressure valve 402 of the cylindricalBOPstopper valve assembly 400 and at least one containment vessel floating on theocean surface 105 to store the oil and/orgas 210. -
FIG. 11A shows aprimary containment assembly 1100 configured to circumvent adefective BOP stack 120′ in accordance with a second embodiment of the present invention. Theprimary containment assembly 1100 may be configured in a cylindrical or conical shape, but must be large enough to sufficiently circumvent thedefective BOP stack 120′. Theprimary containment 1100 may comprise afirst opening 1105 that circumvents thedefective BOP stack 120′. Thefirst opening 1105 is preferably configured to be fastened and sealed to theocean floor 115 by using, for example, a self-fastening mechanism 1110 comprisingfastening devices 1115 and/or sealingdevices 1120. - Still referring to
FIG. 11A , theprimary containment assembly 1100 may further comprise asecond opening 1125 that is narrower than thefirst opening 1105 and through which the spewing oil and/orgas 210 may rise to a secondary containment assembly (e.g., seeFIGS. 13A , 13B and 13C). -
FIG. 11B shows a top view of theprimary containment assembly 1100 ofFIG. 11A including thesecond opening 1125. -
FIG. 11C shows a bottom view of the self-fastening mechanism 1110 of theprimary containment assembly 1100 ofFIG. 11A including activatedfastening elements 1130 projecting from thefastening devices 1115, andsealant 1135 released from thesealing devices 1120. The self-fastening mechanism 1110 may include a series of small explosive charges that, when detonated, force thefastening elements 1130 to project from thefastening devices 1115, and fasten theprimary containment assembly 1100 to theocean floor 115. The self-fastening mechanism 1110 may be activated to releasesealant 1135 that provides a water-tight seal between theprimary containment assembly 1100 and theocean floor 115. -
FIG. 11D shows a side view of theprimary containment assembly 1100 ofFIG. 11A circumventing thedefective BOP stack 120′ and fastened to theocean floor 115 via thefastening elements 1130 of the self-fastening mechanism 1110. -
FIG. 12A shows aprimary containment assembly 1200 configured to circumvent adefective BOP stack 120′ in accordance with an alternative to the second embodiment of the present invention. Theprimary containment assembly 1200 may be configured in a cylindrical or conical shape, but must be large enough to sufficiently circumvent thedefective BOP stack 120′. Theprimary containment 1200 may comprise afirst opening 1205 that circumvents thedefective BOP stack 120′. Thefirst opening 1205 is preferably configured to be fastened and sealed to theocean floor 115 by using, for example, a self-fastening mechanism 1210 that rotates at least oneblade 1215 used to burrow a portion of theprimary containment assembly 1200 below theocean floor 115. - Still referring to
FIG. 12A , theprimary containment assembly 1200 may further comprise asecond opening 1220 that is narrower than thefirst opening 1205 and through which the spewing oil and/orgas 210 may rise to a secondary containment assembly (e.g., seeFIGS. 13A , 13B and 13C). -
FIG. 12B shows a top view of theprimary containment assembly 1200 ofFIG. 12A including thesecond opening 1220. -
FIG. 12C shows a bottom view of the self-fastening mechanism 1210 of theprimary containment assembly 1200 ofFIG. 12A including at least onerotating blade 1215 of the self-fastening mechanism 1210. -
FIG. 12D shows a side view of the primary containment assembly 550 ofFIG. 12A circumventing thedefective BOP stack 120′ and fastened to theocean floor 115 via the blade(s) 1215 of the self-fastening mechanism 1210. - The
primary containment assembly 1100/1200 is lowered below theocean surface 105 and positioned on a portion of theocean floor 115 that circumvents thedefective BOP stack 120′. Although it may be possible to lower theprimary containment assembly 1100/1200 over thedefective BOP stack 120′ if theriser assembly 125 remains in a vertical position by letting theriser assembly 125 pass through thefirst opening 1105/1205 and thesecond opening 1125/1220 of theprimary containment assembly 1100/1200, theriser assembly 125 needs to be disconnected (i.e., cut off) near the top of thedefective BOP stack 120′ if a catastrophic event caused theriser assembly 125 to collapse (i.e., fold over), as what occurred due to the Deepwater Horizon drilling rig explosion. - Preferably, it would be desirable to grade the portion of the
ocean floor 115 that circumvents thedefective BOP stack 120′ before theprimary containment assembly 1100/1200 is positioned, in order to optimize the reduction of the pollution of the ocean caused by the oil and/orgas 210 spewing from thedefective BOP stack 120′. Such ocean floor grading may be performed by at least one ROV. Furthermore, the ROV may be used to assist in the lowering and positioning of theprimary containment assembly 1100/1200. - Alternatively, the
primary containment assembly 1100/1200 may consist of a plurality of sections and/or components that may be constructed and stored onshore close to areas where deepwater rigs are active. The sections and/or components may include seals and/or gaskets, and may be assembled together as they are submerged just under theocean surface 105. -
FIG. 13A shows asecondary containment assembly 1310 configured to be fastened between theprimary containment assembly 1100/1200 at thesecond opening 1125/1220 and at least one containment vessel floating on theocean surface 105 in accordance with the second embodiment of the present invention. Thesecondary containment assembly 1310 may be similar to ariser assembly 125 that is typically connected directly to a properly operatingBOP stack 120, as shown inFIG. 1 , but instead of being attached to theBOP stack 120, afirst opening 1315 of thesecondary containment assembly 1310 is directly attached to thesecond opening 1125/1220 of theprimary containment assembly 1100/1200, and asecond opening 1320 of thesecondary containment assembly 1310 is either directly or indirectly attached to at least one containment vessel floating on theocean surface 105 to allow the spewing oil and/orgas 210 to rise from thesecond opening 1125/1220 of theprimary containment assembly 1100/1200 to the containment vessel. Thesecondary containment assembly 1310 is preferably configured in a cylindrical shape, but must be long enough to reach theocean surface 105. -
FIG. 13B shows asecondary containment assembly 1330 configured to be fastened between theprimary containment assembly 1100/1200 at thesecond opening 1125/1220 and at least one containment vessel floating. Thesecondary containment assembly 1330 comprises a plurality ofsections 1335 that are interconnected to allow the spewing oil and/orgas 210 to rise from thesecond opening 1125/1220 of theprimary containment assembly 1100/1200 to at least one containment vessel floating on theocean surface 105. The sections 1325 may be identical, or have varying lengths, but are all preferably configured in a cylindrical shape that, after being interconnected, are long enough to reach theocean surface 105. -
FIG. 13C shows asecondary containment assembly 1350 configured to be fastened between theprimary containment assembly 1100/1200 at thesecond opening 1125/1220 and at least one containment vessel floating on theocean surface 105. Thesecondary containment assembly 1350 may comprise a flexible ducting hose, or a plurality of flexible ducting hose sections that are connected in a similar fashion as thesections 1335 of thesecondary containment assembly 1330 ofFIG. 13B . -
FIG. 14A shows a side view of the assembled first andsecond containment assemblies 1100/1200/1310/1330/1350 connected between theocean floor 115 and acontainment vessel 1410. -
FIG. 14B shows a side view of the assembled first andsecond containment assemblies 1100/1200/1310/1330/1350 connected between theocean floor 115 and an oil and/orgas routing device 1420 that is controlled to allow the oil and/or gas to be routed via one or more flexible containment sections (i.e., sections of flexible ducting hose) 1430A, 1430B and 1430C in order to be stored by one or morerespective containment vessels flexible containment sections routing device 1420 due to the influence of tides, currents and weather. Oil would either be pumped to the containment vessels or rise naturally from the routing device due to its own buoyancy. -
FIG. 15 is a flow diagram of aprocedure 1500 for containing oil and/or gas spewing from adefective BOP stack 120′ located on anocean floor 115 and causing pollution to the ocean. Instep 1505, aprimary containment assembly 1100/1200 is lowered below theocean surface 105. Instep 1510, theprimary containment assembly 1100/1200 is positioned on a portion of theocean floor 115 that circumvents thedefective BOP stack 120′. Instep 1515, theprimary containment assembly 1100/1200 is fastened to theocean floor 115. Instep 1520, asecondary containment assembly 1310/1330/1350 is lowered below theocean surface 105. Instep 1525, thesecondary containment assembly 1310/1330/1350 is fastened between theprimary containment assembly 1100/1200 and at least onecontainment vessel 1410/1440 on theocean surface 105. One or more ofsteps step 1530, the oil and/orgas 210 spewing from thedefective BOP stack 120′ is stored in the at least onecontainment vessel 1410/1440. -
FIG. 16 shows a side view of aprimary containment assembly 1100′ or 1200′ configured to receive top kill cement and/ormud 1605/1610 from vessels 1615 via a first set of topkill input valves 1620, while regulating the output of the leaking oil and/or gas being contained by a containment vessel 1625 via a large diameterhigh pressure valve 1630 mounted on an upper opening of theprimary containment assembly 1100′ or 1200′ in accordance with a third embodiment of the present invention. Thus, the entiredefective BOP stack 120′ is submerged in the cement and/ormud 1605/1610, which is contained within the walls of theprimary containment assembly 1100′ or 1200′. Assuming that theprimary containment assembly 1100′ or 1200′ is of sufficient size and thickness, as could be determined in a laboratory setting, the underground well for which thedefective BOP stack 120′ was designed to control, should stop spewing the oil and/orgas 210 due to being completely surrounded in a deep layer of the cement and/ormud 1605/1610 that is sufficiently contained. Preferably, the large diameterhigh pressure valve 1630 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105) to maintain an open position, a partially open position or a closed position, as desired. - In accordance with a fourth embodiment of the present invention,
FIG. 17 shows a side view of aprimary containment assembly 1700 having a hollow steel-reinforcedwall 1705 configured to contain reinforcement material (e.g., cement and/or mud) received via a set of wallreinforcement input valves 1710, and ahollow cavity 1715 configured to contain reinforcement material (e.g., top kill cement and/or mud) received via a second set of topkill input valves 1720 configured to receive top kill cement and/or mud to fill a bottom portion of theprimary containment assembly 1700, while regulating the output of the spewing oil and/orgas 210 via a large diameterhigh pressure valve 1725 mounted on an upper opening of theprimary containment assembly 1700 that, optionally, may be heated by one ormore heating elements 1730. Preferably, the large diameterhigh pressure valve 1725 may be configured to be remotely controlled (either wirelessly or via a wired or hydraulic connection from a vessel floating on the ocean surface 105) to maintain an open position, a partially open position or a closed position, as desired. -
FIG. 18 is a flow diagram of aprocedure 1800 for containing oil and/orgas 210 spewing from adefective BOP stack 120′ using theprimary containment assembly 1700 ofFIG. 17 . Instep 1805, theprimary containment assembly 1700 is lowered below theocean surface 105 with the large diameterhigh pressure valve 1725 maintained in an open position. Instep 1810, the heating element(s) 1730 is activated to reduce/eliminate buoyancy problems that may be caused by the spewing oil and/orgas 210. Furthermore, in its open position, the large diameterhigh pressure valve 1725 is configured with an opening of such a large diameter that the oil and/orgas 210 would pass through it without being sufficiently impeded by ice-like crystals (i.e., icy hydrates) that may form near the bottom of an ocean. However, the heating element(s) 1730 is used to insure that this is the case. Instep 1815, theprimary containment assembly 1700 is positioned on a portion of theocean floor 115 that circumvents adefective BOP stack 120′. As previously described, theprimary containment assembly 1700 has a hollow steel-reinforcedwall 1705. Instep 1720, the hollow steel-reinforcedwall 1705 of theprimary containment assembly 1700 is filled with reinforcement material (e.g., cement and/or mud) via wallreinforcement input valves 1710. Instep 1825, a hollowinner cavity 1715 of theprimary containment assembly 1700, in which thedefective BOP stack 120′ resides, is filled with reinforcement material (e.g., top kill cement and/or mud) via a second set of topkill input valves 1720. Finally, instep 1830, the upper opening of theprimary containment assembly 1700 is filled with top kill cement and/or mud, and the large diameterhigh pressure valve 1725 is then closed.
Claims (20)
1. A method of containing at least one of oil or gas spewing from a defective blowout preventer (BOP) stack located on a floor of an ocean, the method comprising:
(a) submerging a containment assembly below a surface of the ocean;
(b) positioning the containment assembly on a portion of the ocean floor that circumvents the defective BOP stack;
(c) submerging a valve assembly below the ocean surface; and
(d) positioning the valve assembly on top of the containment assembly to contain the at least one of oil and gas.
2. The method of claim 1 wherein the containment assembly comprises a plurality of flooding valves configured to be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
3. The method of claim 2 further comprising:
(e) opening at least one of the flooding valves to submerge the containment assembly below the ocean surface; and
(f) closing the at least one flooding valve after the containment assembly is positioned on the portion of the ocean floor that circumvents the defective BOP stack.
4. The method of claim 1 wherein the containment assembly comprises a hollow wall having a reinforcement cavity, and a plurality of reinforcement material input valves, the method further comprising:
(e) reinforcing the containment assembly by filling the reinforcement cavity of the hollow wall of the containment assembly with reinforcement material via at least one of the reinforcement material input valves, wherein the reinforcement material comprises at least one of cement or mud, and the reinforcement material input valves are configured to be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
5. The method of claim 1 wherein the valve assembly comprises a plurality of flooding valves configured to be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
6. The method of claim 5 further comprising;
(e) opening at least one of the flooding valves to submerge the valve assembly below the ocean surface; and
(f) closing the at least one flooding valve after the valve assembly is positioned on top of the containment assembly.
7. The method of claim 1 wherein the valve assembly comprises a hollow cavity and a plurality of reinforcement material input valves, the method further comprising:
(e) reinforcing the valve assembly by filling the hollow cavity of the valve assembly with reinforcement material via at least one of the reinforcement material input valves, wherein the reinforcement material comprises at least one of cement or mud, and the reinforcement material input valves are configured to be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
8. The method of claim 7 wherein the valve assembly further comprises at least one large diameter high pressure valve that is surrounded by the hollow cavity.
9. The method of claim 8 wherein the large diameter high pressure valve is remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
10. The method of claim 8 wherein the large diameter high pressure valve is maintained in an open position when the valve assembly is submerged below the ocean surface, and the large diameter high pressure valve is maintained in a closed position after the valve assembly is positioned on top of the containment assembly.
11. Apparatus for containing at least one of oil or gas spewing from a defective blowout preventer (BOP) stack located on a floor of an ocean, the apparatus comprising:
a containment assembly configured to be submerged below a surface of the ocean and positioned on a portion of the ocean floor that circumvents the defective BOP stack; and
a valve assembly configured to be submerged below the ocean surface and positioned on top of the containment assembly to contain the at least one of oil and gas.
12. The apparatus of claim 11 wherein the containment assembly comprises a plurality of flooding valves configured to be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
13. The apparatus of claim 12 wherein at least one of the flooding valves is opened to submerge the containment assembly below the ocean surface, and the at least one flooding valve is closed after the containment assembly is positioned on the portion of the ocean floor that circumvents the defective BOP stack.
14. The apparatus of claim 11 wherein the containment assembly comprises a hollow wall having a reinforcement cavity, and a plurality of reinforcement material input valves, and the containment assembly is reinforced by filling the reinforcement cavity of the hollow wall of the containment assembly with reinforcement material via at least one of the reinforcement material input valves, wherein the reinforcement material comprises at least one of cement or mud, and the reinforcement material input valves are configured to be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
15. The apparatus of claim 11 wherein the valve assembly comprises a plurality of flooding valves configured to be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
16. The apparatus of claim 15 wherein at least one of the flooding valves is opened to submerge the valve assembly below the ocean surface, and the at least one flooding valve is closed after the valve assembly is positioned on top of the containment assembly.
17. The apparatus of claim 11 wherein the valve assembly comprises a hollow cavity and a plurality of reinforcement material input valves, and the valve assembly is reinforced by filling the hollow cavity of the valve assembly with reinforcement material via at least one of the reinforcement material input valves, wherein the reinforcement material comprises at least one of cement or mud, and the reinforcement material input valves are configured to be remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
18. The apparatus of claim 17 wherein the valve assembly further comprises at least one large diameter high pressure valve that is surrounded by the hollow cavity.
19. The apparatus of claim 18 wherein the large diameter high pressure valve is remotely controlled, either wirelessly or via a wired or hydraulic connection, from a vessel floating on the ocean surface to maintain an open position, a partially open position or a closed position.
20. The apparatus of claim 18 wherein the large diameter high pressure valve is maintained in an open position when the valve assembly is submerged below the ocean surface, and the large diameter high pressure valve is maintained in a closed position after the valve assembly is positioned on top of the containment assembly.
Priority Applications (2)
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US12/860,001 US20110315395A1 (en) | 2010-06-24 | 2010-08-20 | Method and apparatus for containing a defective blowout preventer (bop) stack using bopstopper assemblies having remotely controlled valves and heating elements |
US12/966,426 US20110315396A1 (en) | 2010-06-24 | 2010-12-13 | Method and apparatus for controlling valves of a subsea oil spill containment assembly |
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US12/822,324 US20110315393A1 (en) | 2010-06-24 | 2010-06-24 | Method and apparatus for containing an undersea oil and/or gas spill caused by a defective blowout preventer (bop) |
US12/860,001 US20110315395A1 (en) | 2010-06-24 | 2010-08-20 | Method and apparatus for containing a defective blowout preventer (bop) stack using bopstopper assemblies having remotely controlled valves and heating elements |
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US12/822,324 Continuation-In-Part US20110315393A1 (en) | 2010-06-24 | 2010-06-24 | Method and apparatus for containing an undersea oil and/or gas spill caused by a defective blowout preventer (bop) |
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US12/966,426 Continuation US20110315396A1 (en) | 2010-06-24 | 2010-12-13 | Method and apparatus for controlling valves of a subsea oil spill containment assembly |
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US20110315395A1 true US20110315395A1 (en) | 2011-12-29 |
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US12/860,001 Abandoned US20110315395A1 (en) | 2010-06-24 | 2010-08-20 | Method and apparatus for containing a defective blowout preventer (bop) stack using bopstopper assemblies having remotely controlled valves and heating elements |
US12/966,426 Abandoned US20110315396A1 (en) | 2010-06-24 | 2010-12-13 | Method and apparatus for controlling valves of a subsea oil spill containment assembly |
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US12/966,426 Abandoned US20110315396A1 (en) | 2010-06-24 | 2010-12-13 | Method and apparatus for controlling valves of a subsea oil spill containment assembly |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110299930A1 (en) * | 2010-06-04 | 2011-12-08 | Messina Frank D | Subsea oil leak stabilization system and method |
US20120027519A1 (en) * | 2010-06-21 | 2012-02-02 | Krecke Edmond D | Method and a device for sealing and/or securing a borehole |
US20120160509A1 (en) * | 2010-06-25 | 2012-06-28 | Mjb Of Mississippi, Inc. | Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer |
US20120181040A1 (en) * | 2010-07-16 | 2012-07-19 | Jennings Bruce A | Well-riser Repair Collar with Concrete Seal |
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US20130008665A1 (en) * | 2011-03-21 | 2013-01-10 | Jelsma Henk H | Method and apparatus for subsea wellhead encapsulation |
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US20150090461A1 (en) * | 2013-01-28 | 2015-04-02 | Jorge Fernando Carrascal | Detachable capping device and method for an oil/gas well under blowout conditions |
US9004176B2 (en) | 2010-07-21 | 2015-04-14 | Marine Well Containment Company | Marine well containment system and method |
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Citations (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US54438A (en) * | 1866-05-01 | William mont stoem | ||
US59782A (en) * | 1866-11-20 | Improvement in apparatus poe obtaining oil from wells | ||
US1017486A (en) * | 1911-07-12 | 1912-02-13 | Charles Williamson | Submarine mining apparatus. |
US1807498A (en) * | 1929-02-12 | 1931-05-26 | Lue A Teed | Well capping device |
US1830061A (en) * | 1929-02-11 | 1931-11-03 | Los Angeles Testing Lab | Protective hood for oil and gas wells |
US1859606A (en) * | 1931-04-09 | 1932-05-24 | Sievern Fredrick | Oil saving dome |
US2536320A (en) * | 1946-08-26 | 1951-01-02 | Arthur C Smith | Submerged oil storage tank |
US3389559A (en) * | 1965-05-17 | 1968-06-25 | Campbell F. Logan | Fluid recovery system and method |
US3469402A (en) * | 1968-01-04 | 1969-09-30 | Combustion Eng | Off-shore tank system |
US3548605A (en) * | 1969-05-07 | 1970-12-22 | Texaco Development Corp | Submergible vehicle for emergency offshore gas leakage |
US3568737A (en) * | 1968-10-23 | 1971-03-09 | Texaco Development Corp | Offshore liquid storage facility |
US3664136A (en) * | 1969-11-28 | 1972-05-23 | Laval Claude C | Collecting device for submarine oil leakage |
US3664429A (en) * | 1971-06-07 | 1972-05-23 | Eugene G Jones | Apparatus for preventing pollution from offshore oil wells |
US3674150A (en) * | 1970-09-25 | 1972-07-04 | Lloyd M Lejeune | Apparatus for preventing offshore oil well pollution |
US3686811A (en) * | 1970-02-09 | 1972-08-29 | Charles W Hayes | Spaced multi-wall construction unit |
US3703207A (en) * | 1970-07-29 | 1972-11-21 | Deep Oil Technology Inc | Subsea bunker construction |
US3719048A (en) * | 1971-11-18 | 1973-03-06 | Chicago Bridge & Iron Co | Offshore structure with static and dynamic stabilization shell |
US3724662A (en) * | 1971-03-12 | 1973-04-03 | A Ortiz | Control of oil pollution at sea, apparatus and method |
US3745773A (en) * | 1971-06-16 | 1973-07-17 | Offshore Recovery Syst Inc | Safety off shore drilling and pumping platform |
US3751930A (en) * | 1971-12-27 | 1973-08-14 | Texaco Inc | Articulated marine structure with prepositioned anchoring piles |
US4283159A (en) * | 1979-10-01 | 1981-08-11 | Johnson Albert O | Protective shroud for offshore oil wells |
US4323118A (en) * | 1980-02-04 | 1982-04-06 | Bergmann Conrad E | Apparatus for controlling and preventing oil blowouts |
US4358218A (en) * | 1979-12-17 | 1982-11-09 | Texaco Inc. | Apparatus for confining the effluent of an offshore uncontrolled well |
US4558744A (en) * | 1982-09-14 | 1985-12-17 | Canocean Resources Ltd. | Subsea caisson and method of installing same |
US4568220A (en) * | 1984-03-07 | 1986-02-04 | Hickey John J | Capping and/or controlling undersea oil or gas well blowout |
US4643612A (en) * | 1984-12-17 | 1987-02-17 | Shell Offshore Inc. | Oil cleanup barge |
US4664556A (en) * | 1983-10-24 | 1987-05-12 | Dixon Richard K | Method for building structures in water |
US5113948A (en) * | 1991-06-21 | 1992-05-19 | Richardson Randel E | Oil well fire extinguisher with internal pipe crimper |
US5154234A (en) * | 1991-10-02 | 1992-10-13 | Carrico Paul B | Wellhead fire extinguisher and method extinguishing a well fire |
US5238071A (en) * | 1991-10-10 | 1993-08-24 | Simpson Harold G | Oil well fire snuffer |
US5259458A (en) * | 1991-09-19 | 1993-11-09 | Schaefer Jr Louis E | Subsea shelter and system for installation |
US6592299B1 (en) * | 1999-06-18 | 2003-07-15 | Nymphea Water | Method and an installation for collecting from and detecting a fresh water spring at sea |
US20080194160A1 (en) * | 2005-05-04 | 2008-08-14 | John Francis Concannon | Float and a Floatable Structure |
US7600570B2 (en) * | 2005-07-05 | 2009-10-13 | Seabed Rig As | Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells |
US20110311311A1 (en) * | 2010-06-22 | 2011-12-22 | Brey Arden L | Method and system for confining and salvaging oil and methane leakage from offshore locations and extraction operations |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5051029A (en) * | 1990-08-06 | 1991-09-24 | Ecker Clifford G | Marine spill containment method and apparatus |
GB2405652B (en) * | 2003-08-04 | 2007-05-30 | Pathfinder Energy Services Inc | Apparatus for obtaining high quality formation fluid samples |
EP2064412B1 (en) * | 2006-09-21 | 2016-01-06 | Vetco Gray Scandinavia AS | A method and an apparatus for cold start of a subsea production system |
-
2010
- 2010-08-20 US US12/860,001 patent/US20110315395A1/en not_active Abandoned
- 2010-12-13 US US12/966,426 patent/US20110315396A1/en not_active Abandoned
Patent Citations (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US54438A (en) * | 1866-05-01 | William mont stoem | ||
US59782A (en) * | 1866-11-20 | Improvement in apparatus poe obtaining oil from wells | ||
US1017486A (en) * | 1911-07-12 | 1912-02-13 | Charles Williamson | Submarine mining apparatus. |
US1830061A (en) * | 1929-02-11 | 1931-11-03 | Los Angeles Testing Lab | Protective hood for oil and gas wells |
US1807498A (en) * | 1929-02-12 | 1931-05-26 | Lue A Teed | Well capping device |
US1859606A (en) * | 1931-04-09 | 1932-05-24 | Sievern Fredrick | Oil saving dome |
US2536320A (en) * | 1946-08-26 | 1951-01-02 | Arthur C Smith | Submerged oil storage tank |
US3389559A (en) * | 1965-05-17 | 1968-06-25 | Campbell F. Logan | Fluid recovery system and method |
US3469402A (en) * | 1968-01-04 | 1969-09-30 | Combustion Eng | Off-shore tank system |
US3568737A (en) * | 1968-10-23 | 1971-03-09 | Texaco Development Corp | Offshore liquid storage facility |
US3548605A (en) * | 1969-05-07 | 1970-12-22 | Texaco Development Corp | Submergible vehicle for emergency offshore gas leakage |
US3664136A (en) * | 1969-11-28 | 1972-05-23 | Laval Claude C | Collecting device for submarine oil leakage |
US3686811A (en) * | 1970-02-09 | 1972-08-29 | Charles W Hayes | Spaced multi-wall construction unit |
US3703207A (en) * | 1970-07-29 | 1972-11-21 | Deep Oil Technology Inc | Subsea bunker construction |
US3674150A (en) * | 1970-09-25 | 1972-07-04 | Lloyd M Lejeune | Apparatus for preventing offshore oil well pollution |
US3724662A (en) * | 1971-03-12 | 1973-04-03 | A Ortiz | Control of oil pollution at sea, apparatus and method |
US3664429A (en) * | 1971-06-07 | 1972-05-23 | Eugene G Jones | Apparatus for preventing pollution from offshore oil wells |
US3745773A (en) * | 1971-06-16 | 1973-07-17 | Offshore Recovery Syst Inc | Safety off shore drilling and pumping platform |
US3719048A (en) * | 1971-11-18 | 1973-03-06 | Chicago Bridge & Iron Co | Offshore structure with static and dynamic stabilization shell |
US3751930A (en) * | 1971-12-27 | 1973-08-14 | Texaco Inc | Articulated marine structure with prepositioned anchoring piles |
US4283159A (en) * | 1979-10-01 | 1981-08-11 | Johnson Albert O | Protective shroud for offshore oil wells |
US4358218A (en) * | 1979-12-17 | 1982-11-09 | Texaco Inc. | Apparatus for confining the effluent of an offshore uncontrolled well |
US4323118A (en) * | 1980-02-04 | 1982-04-06 | Bergmann Conrad E | Apparatus for controlling and preventing oil blowouts |
US4558744A (en) * | 1982-09-14 | 1985-12-17 | Canocean Resources Ltd. | Subsea caisson and method of installing same |
US4664556A (en) * | 1983-10-24 | 1987-05-12 | Dixon Richard K | Method for building structures in water |
US4568220A (en) * | 1984-03-07 | 1986-02-04 | Hickey John J | Capping and/or controlling undersea oil or gas well blowout |
US4643612A (en) * | 1984-12-17 | 1987-02-17 | Shell Offshore Inc. | Oil cleanup barge |
US5113948A (en) * | 1991-06-21 | 1992-05-19 | Richardson Randel E | Oil well fire extinguisher with internal pipe crimper |
US5259458A (en) * | 1991-09-19 | 1993-11-09 | Schaefer Jr Louis E | Subsea shelter and system for installation |
US5154234A (en) * | 1991-10-02 | 1992-10-13 | Carrico Paul B | Wellhead fire extinguisher and method extinguishing a well fire |
US5238071A (en) * | 1991-10-10 | 1993-08-24 | Simpson Harold G | Oil well fire snuffer |
US6592299B1 (en) * | 1999-06-18 | 2003-07-15 | Nymphea Water | Method and an installation for collecting from and detecting a fresh water spring at sea |
US20080194160A1 (en) * | 2005-05-04 | 2008-08-14 | John Francis Concannon | Float and a Floatable Structure |
US7600570B2 (en) * | 2005-07-05 | 2009-10-13 | Seabed Rig As | Drilling rig placed on the sea bed and equipped for drilling of oil and gas wells |
US20110311311A1 (en) * | 2010-06-22 | 2011-12-22 | Brey Arden L | Method and system for confining and salvaging oil and methane leakage from offshore locations and extraction operations |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110299930A1 (en) * | 2010-06-04 | 2011-12-08 | Messina Frank D | Subsea oil leak stabilization system and method |
US20120027519A1 (en) * | 2010-06-21 | 2012-02-02 | Krecke Edmond D | Method and a device for sealing and/or securing a borehole |
US8888407B2 (en) * | 2010-06-21 | 2014-11-18 | Edmond D. Krecke | Method and a device for sealing and/or securing a borehole |
US8887812B2 (en) * | 2010-06-25 | 2014-11-18 | Safestack Technology L.L.C. | Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer |
US20120160509A1 (en) * | 2010-06-25 | 2012-06-28 | Mjb Of Mississippi, Inc. | Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer |
US9650874B2 (en) | 2010-06-25 | 2017-05-16 | Safestack Technology L.L.C. | Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer |
US20120181040A1 (en) * | 2010-07-16 | 2012-07-19 | Jennings Bruce A | Well-riser Repair Collar with Concrete Seal |
US9004176B2 (en) | 2010-07-21 | 2015-04-14 | Marine Well Containment Company | Marine well containment system and method |
US8746344B2 (en) * | 2010-11-15 | 2014-06-10 | Baker Hughes Incorporated | System and method for containing borehole fluid |
US9085950B2 (en) * | 2010-12-20 | 2015-07-21 | Joe Spacek | Oil well improvement system |
US20120241160A1 (en) * | 2010-12-20 | 2012-09-27 | Joe Spacek | Oil well improvement system |
US8789607B2 (en) * | 2011-03-21 | 2014-07-29 | Henk H. Jelsma | Method and apparatus for subsea wellhead encapsulation |
US20130008665A1 (en) * | 2011-03-21 | 2013-01-10 | Jelsma Henk H | Method and apparatus for subsea wellhead encapsulation |
US20150090461A1 (en) * | 2013-01-28 | 2015-04-02 | Jorge Fernando Carrascal | Detachable capping device and method for an oil/gas well under blowout conditions |
US9562412B2 (en) * | 2013-01-28 | 2017-02-07 | Jorge Fernando Carrascal | Detachable capping device and method for an oil/gas well under blowout conditions |
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