US20120024533A1 - Apparatus for collecting oil escaped from an underwater blowout - Google Patents
Apparatus for collecting oil escaped from an underwater blowout Download PDFInfo
- Publication number
- US20120024533A1 US20120024533A1 US12/804,667 US80466710A US2012024533A1 US 20120024533 A1 US20120024533 A1 US 20120024533A1 US 80466710 A US80466710 A US 80466710A US 2012024533 A1 US2012024533 A1 US 2012024533A1
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- US
- United States
- Prior art keywords
- tubular member
- oil
- wellhead
- base
- lower portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 4
- 230000005465 channeling Effects 0.000 claims description 6
- 230000009972 noncorrosive effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims 3
- 230000001174 ascending effect Effects 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 12
- 239000012188 paraffin wax Substances 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 6
- 230000008023 solidification Effects 0.000 abstract description 6
- 238000007667 floating Methods 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 241000191291 Abies alba Species 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000003305 oil spill Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 for instance Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
- the present invention relates to an apparatus for collecting oil escaped from an underwater wellhead into a surrounding body of water. More particularly this invention relates to an apparatus for channeling escaped oil from a point near the seabed to a floating oil collection facility.
- test drilling as well as production is often conducted from offshore structures, such as floating rigs, semi-submersible vessel and bottom-secured platforms.
- blowout preventers are typically large valves at the top of a well that may be closed if the drilling crew in an event of loss of control of formation fluids. By closing this valve (usually operated remotely via hydraulic actuators), the drilling crew usually regains control of the reservoir, and procedures can then be initiated to increase the mud density until it is possible to open the BOP and retain pressure control of the formation. If the BOP fails, a catastrophic blowout can occur, as a result of which the wellhead and the formation around it starts leaking oil.
- BOP blowout preventers
- Well blowouts should be capped as quickly as possible in order to prevent a further loss of the valuable resource, as well as to prevent pollution of the environment.
- it is necessary to close the wellbore at a location where the casing and tubing are still undamaged and accessible.
- the difficulty of collecting oil from the water surface and land are further exacerbated by icing of the methane gas and solidification of paraffin in the collectors.
- the blown pipe may have uneven edges, which makes sealing of the pipe even more difficult.
- the present invention contemplates elimination of drawbacks associated with convention solutions provision of an additional layer in the safety system for oil drilling and producing wells.
- an object of the present invention to provide an apparatus for channeling escaped oil from an underwater location to the surface-floating collection vessel. It is another object of the invention to provide an apparatus that allows to catch escaped oil and direct the oil toward the surface within a tubular conduit body.
- the apparatus has a ring-shaped weighted base configured for positioning on a sea bottom in a generally surrounding relationship to the wellhead.
- a tubular conduit is secured to the sea bottom and extends through the opening in the base below the bottom surface so as to anchor the tubular member and resist displacement by water currents.
- the tubular member has an open top, which facilitates pressure equalization between the water and the interior of the tubular member. Escaped oil and gas ascend to the water surface being guided by the tubular member. To reduce solidification of paraffin and methane icing, a portion of the tubular conduit if formed from polyvinyl chloride.
- FIG. 1 is a perspective view of the oil collection apparatus of the present invention.
- FIG. 2 is a plan view of the oil collection apparatus of the present invention.
- the apparatus 10 comprises a ring-shaped base 12 configured to rest on a sea bottom 14 in a surrounding relationship to a wellhead 16 .
- the base has a central opening configured to receive a tubular channeling member 20 therethrough, as will be explained in more detail hereinafter.
- the wellhead 16 can be in the form of a conventional subsea Christmas tree, with a plurality of valves for regulating a flow of liquids to and from a drill pipe or production pipe 18 .
- the drill/production pipe 18 penetrates the formation to reach a producing zone (not shown), while the Christmas tree 16 is mounted in the upper part of the drill/production pipe 18 .
- the base 12 is preferably formed as a weighted non-buoyant member that resists displacement by the water current. If one aspect of the invention, the base 12 is a ring-shaped hollow body filled with concrete to assure an appropriate seal between a bottom surface 15 of the base 12 with the sea bottom 14 . If necessary, the base 12 may be anchored to the sea bottom 14 by conventional anchors.
- a large diameter tubular member 20 is affixed to the collar 12 and extends upwardly therefrom.
- the tubular member 20 has an open top 21 , which does not create any significant pressure differential between the area around a well and the top of the tubular member 20 .
- the tubular member 20 comprises a lower portion 22 , a middle portion 24 , and an upper portion 26 .
- a part 23 of the lower portion 22 is configured to penetrate to a distance into the sea bottom 14 of the body of water, thus stabilizing position of the tubular member 12 in relation to the bottom 12 .
- the lower portion 22 is positioned in a surrounding relationship to the tree 16 , as shown in FIG. 2 , protecting the tree 16 and establishing a boundary for any liquids that may escape from the well.
- the base 12 is positioned in a surrounding relationship to the lower portion 22 and further prevents displacement of the lower portion 22 .
- a suitable seal may be formed at the intersection of the lower portion 22 and the base 12 to prevent leaking of oil into the water.
- the lower portion 22 is formed from a non-corrosive material, such as stainless steel. Of course other materials may be used depending on the manufacturing preferences.
- the middle portion 24 of the tubular member 20 is fixedly connected in a liquid-tight manner to the lower portion 22 .
- the lower portion 22 and the middle portion 24 are fluidly connected, forming a path for escaped oil from the well.
- the lower portion 24 can be formed from a strong non-corrosive nonmetal material, such as for instance, polyvinyl chloride (PVC).
- PVC polyvinyl chloride
- the wall of the tubular member that defines the middle portion 24 is about 4 inches thick. It is believed that the non-metal conduit for guiding escaped oil to the surface prevents icing of the methane gas that is released when oil spills from a well and solidification of paraffin.
- the upper portion 26 of the tubular member 20 is fixedly secured to an upper end 28 of the middle portion 24 .
- the upper portion 26 engages the middle portion 24 in a liquid-tight manner with appropriate seals between the walls of the two conduits.
- the upper portion 26 can be formed from a non-corrosive material, such as stainless steel.
- a spout 30 is secured to the wall of the upper portion 26 and is fluidly connected to the interior opening in the upper portion 26 .
- the oil rising through the openings of the lower portion 22 , the middle portion 24 and the upper portion 26 is guided into the spout 30 for collection in a collection vessel, such as a barge 32 .
- the barge 32 is a conventional floating structure suitable for collecting oil and transporting it to an onshore facility or a pipeline.
- the tubular member 20 is wide enough to capture all of the flow that is coming out of the pipeline 16 .
- the tubular member is expected to catch the oil/gas mixture escaping from the well, while significantly reducing the pressure in the wellhead with the tree 16 .
- the methane gas icing and paraffin solidification are eliminated, or significantly reduced due to the larger portion of the tubular member being made of a nonmetallic material.
- a pump may be connected to the tubular member 20 to further facilitate in withdrawing of oil and gas from the spill location.
- the apparatus 10 will channel oil and gas as it escapes from the well bore, directing it to the top of the well site where it can be pumped to container ships. Even without the use of auxiliary pumps it is expected that the oil and gas will rise to the surface through the tubular member 20 . Since the oil cannot escape the tubular member 12 it cannot escape into the open water and contaminate the surrounding area.
- a gas collection conduit can be connected to the upper portion to divert the escaped gas into a collection area.
- the gas trapped by the tubular member can be allowed to rise to the surface and then ignited in an uncontrolled combustion.
- the invention enables collection of oil and gas from a blowout at all water depths at which it is feasible to drill for oil or gas.
- the apparatus can operate under the most extreme variations in tidal water, and in consideration of given operational conditions it may be designed for very large wave heights as well as the more moderate conditions which normally will occur.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A large diameter conduit extends from a subsea location surrounding a wellhead to an area above the water surface. The conduit is designed to channel escaped oil and gas from the underwater well to a floating collection facility. The conduit has a portion formed from polyvinyl chloride to reduce paraffin solidification and methane gas icing.
Description
- The present invention relates to an apparatus for collecting oil escaped from an underwater wellhead into a surrounding body of water. More particularly this invention relates to an apparatus for channeling escaped oil from a point near the seabed to a floating oil collection facility.
- In recent years, the exploitation of oil and gas deposits in geological layers deep beneath the sea surface has become more and more common. The exploitation of these energy resources comprises several phases from the drilling of test wells up to and including the establishment of production facilities. Test drilling as well as production is often conducted from offshore structures, such as floating rigs, semi-submersible vessel and bottom-secured platforms.
- Several problems accompany deep-sea drilling and production, one of which is position of the wellhead a mile or more below the water surface. When the production pipe is damaged, the steel casings and the underlying rock formations are leaking oil, under a considerable pressure into the water. To solve this problem, the wellheads are provided with blowout preventers (BOP), which are typically large valves at the top of a well that may be closed if the drilling crew in an event of loss of control of formation fluids. By closing this valve (usually operated remotely via hydraulic actuators), the drilling crew usually regains control of the reservoir, and procedures can then be initiated to increase the mud density until it is possible to open the BOP and retain pressure control of the formation. If the BOP fails, a catastrophic blowout can occur, as a result of which the wellhead and the formation around it starts leaking oil.
- In the offshore drilling or production of oil and gas, accidents such as equipment malfunctions or the like occasionally result in a condition known as a blowout. In such instances, the fluids under substantial underground pressure flow uncontrollably to the surrounding body of water. The contamination caused by a blowout disastrously affects the environment. A non-checked oil spill can kill every sea inhabitant and wildlife along a nearby shoreline.
- Well blowouts should be capped as quickly as possible in order to prevent a further loss of the valuable resource, as well as to prevent pollution of the environment. However, to control the flow from a burning or damaged well, it is necessary to close the wellbore at a location where the casing and tubing are still undamaged and accessible.
- The industry proposes several solutions to this problem. In one commonly used method, additional wellbores are drilled to intersect the uncontrolled wellbore so that plugging cement can be used to seal the gushing well. Another method suggests pumping a heavy drilling mud into the formation to kill the well. These procedures, however, are hazardous, costly and time consuming. As the additional wellbores are drilled, which can take several months in an offshore location, the oil continues to flow onto and pollute the surrounding area. Moreover, in an offshore operation, heavy wave action severely limits the available options.
- In spite of advanced technology and substantial safety measures, there is always a risk of accidents caused by e.g. human error, material fatigue, system malfunctioning or the influence of forces of nature. The catastrophic explosion that caused an oil spill from a British Petroleum offshore drilling rig in the Gulf of Mexico in April of 2010 demonstrates the need for improvements in safety of the offshore operations. As a consequence of the explosion, the oil and gas, or a combination of these components flow uncontrolled into the Gulf of Mexico. The escaped oil rises to the surface and disperses with resulting pollution and detrimental effects to bird life and the environment of marine biology.
- The difficulty of collecting oil from the water surface and land are further exacerbated by icing of the methane gas and solidification of paraffin in the collectors. Furthermore, the blown pipe may have uneven edges, which makes sealing of the pipe even more difficult.
- The present invention contemplates elimination of drawbacks associated with convention solutions provision of an additional layer in the safety system for oil drilling and producing wells.
- It is, therefore, an object of the present invention to provide an apparatus for channeling escaped oil from an underwater location to the surface-floating collection vessel. It is another object of the invention to provide an apparatus that allows to catch escaped oil and direct the oil toward the surface within a tubular conduit body.
- It is a further object of the invention to provide an apparatus for channeling the escaped oil via a tubular conduit that minimizes icing of the methane gas and solidification of paraffin in the collection channels.
- These and other objects of the invention are achieved through a provision of an apparatus for collecting oil and gas escaped from a sea-bottom wellhead. The apparatus has a ring-shaped weighted base configured for positioning on a sea bottom in a generally surrounding relationship to the wellhead. A tubular conduit is secured to the sea bottom and extends through the opening in the base below the bottom surface so as to anchor the tubular member and resist displacement by water currents.
- The tubular member has an open top, which facilitates pressure equalization between the water and the interior of the tubular member. Escaped oil and gas ascend to the water surface being guided by the tubular member. To reduce solidification of paraffin and methane icing, a portion of the tubular conduit if formed from polyvinyl chloride.
- Reference will now be made to the drawings, wherein like parts are designated by like numerals, and wherein
-
FIG. 1 is a perspective view of the oil collection apparatus of the present invention. -
FIG. 2 is a plan view of the oil collection apparatus of the present invention. - As apparent from
FIGS. 1 and 2 , theapparatus 10 comprises a ring-shaped base 12 configured to rest on asea bottom 14 in a surrounding relationship to awellhead 16. The base has a central opening configured to receive atubular channeling member 20 therethrough, as will be explained in more detail hereinafter. - The
wellhead 16 can be in the form of a conventional subsea Christmas tree, with a plurality of valves for regulating a flow of liquids to and from a drill pipe orproduction pipe 18. Conventionally, the drill/production pipe 18 penetrates the formation to reach a producing zone (not shown), while the Christmastree 16 is mounted in the upper part of the drill/production pipe 18. - The
base 12 is preferably formed as a weighted non-buoyant member that resists displacement by the water current. If one aspect of the invention, thebase 12 is a ring-shaped hollow body filled with concrete to assure an appropriate seal between abottom surface 15 of thebase 12 with thesea bottom 14. If necessary, thebase 12 may be anchored to thesea bottom 14 by conventional anchors. - A large diameter
tubular member 20 is affixed to thecollar 12 and extends upwardly therefrom. Thetubular member 20 has anopen top 21, which does not create any significant pressure differential between the area around a well and the top of thetubular member 20. - The
tubular member 20 comprises alower portion 22, amiddle portion 24, and anupper portion 26. Apart 23 of thelower portion 22 is configured to penetrate to a distance into thesea bottom 14 of the body of water, thus stabilizing position of thetubular member 12 in relation to thebottom 12. Thelower portion 22 is positioned in a surrounding relationship to thetree 16, as shown inFIG. 2 , protecting thetree 16 and establishing a boundary for any liquids that may escape from the well. - The
base 12 is positioned in a surrounding relationship to thelower portion 22 and further prevents displacement of thelower portion 22. A suitable seal may be formed at the intersection of thelower portion 22 and thebase 12 to prevent leaking of oil into the water. In one aspect of the invention, thelower portion 22 is formed from a non-corrosive material, such as stainless steel. Of course other materials may be used depending on the manufacturing preferences. - The
middle portion 24 of thetubular member 20 is fixedly connected in a liquid-tight manner to thelower portion 22. Thelower portion 22 and themiddle portion 24 are fluidly connected, forming a path for escaped oil from the well. Thelower portion 24 can be formed from a strong non-corrosive nonmetal material, such as for instance, polyvinyl chloride (PVC). In one aspect of the invention, the wall of the tubular member that defines themiddle portion 24 is about 4 inches thick. It is believed that the non-metal conduit for guiding escaped oil to the surface prevents icing of the methane gas that is released when oil spills from a well and solidification of paraffin. - The
upper portion 26 of thetubular member 20 is fixedly secured to anupper end 28 of themiddle portion 24. Theupper portion 26 engages themiddle portion 24 in a liquid-tight manner with appropriate seals between the walls of the two conduits. Theupper portion 26 can be formed from a non-corrosive material, such as stainless steel. - A
spout 30 is secured to the wall of theupper portion 26 and is fluidly connected to the interior opening in theupper portion 26. The oil rising through the openings of thelower portion 22, themiddle portion 24 and theupper portion 26 is guided into thespout 30 for collection in a collection vessel, such as abarge 32. Thebarge 32 is a conventional floating structure suitable for collecting oil and transporting it to an onshore facility or a pipeline. - The
tubular member 20 is wide enough to capture all of the flow that is coming out of thepipeline 16. The tubular member is expected to catch the oil/gas mixture escaping from the well, while significantly reducing the pressure in the wellhead with thetree 16. The methane gas icing and paraffin solidification are eliminated, or significantly reduced due to the larger portion of the tubular member being made of a nonmetallic material. - It is envisioned that a pump may be connected to the
tubular member 20 to further facilitate in withdrawing of oil and gas from the spill location. - In operation, the
apparatus 10 will channel oil and gas as it escapes from the well bore, directing it to the top of the well site where it can be pumped to container ships. Even without the use of auxiliary pumps it is expected that the oil and gas will rise to the surface through thetubular member 20. Since the oil cannot escape thetubular member 12 it cannot escape into the open water and contaminate the surrounding area. - If desired, a gas collection conduit can be connected to the upper portion to divert the escaped gas into a collection area. Alternatively, the gas trapped by the tubular member can be allowed to rise to the surface and then ignited in an uncontrolled combustion.
- The invention enables collection of oil and gas from a blowout at all water depths at which it is feasible to drill for oil or gas. The apparatus can operate under the most extreme variations in tidal water, and in consideration of given operational conditions it may be designed for very large wave heights as well as the more moderate conditions which normally will occur.
- Many changes and modifications can be made in the design of the present invention without departing from the spirit thereof. I, therefore, pray that my rights to the present invention be limited only by the scope of the appended claims.
Claims (18)
1. An apparatus for collecting oil and gas escaped from a sea-bottom wellhead, comprising:
a base configured for positioning on a sea bottom in a generally surrounding relationship to the wellhead; and
a tubular member secured to and extending upwardly from the base, said tubular member being configured to extend from an underwater location around the wellhead to an above-surface location, said tubular member channeling the escaped oil and gas ascending to a water surface.
2. The apparatus of claim 1 , wherein said base comprises a ring-shaped body having a central opening configured to receive the tubular member therethrough.
3. The apparatus of claim 1 , wherein the base comprises a weighted body configured to resist displacement by water current.
4. The apparatus of claim 1 , wherein the tubular member comprises a lower portion secured to the base, a middle portion affixed to the lower portion and extending upwardly therefrom, and an upper portion secured to the middle portion and extending upwardly to a location above the water surface.
5. The apparatus of claim 4 , wherein the lower portion is configured to extend into the sea bottom to a pre-determined distance and anchor the tubular member in relation to the wellhead.
6. The apparatus of claim 4 , wherein the lower portion is formed from a non-corrosive metallic material.
7. The apparatus of claim 4 , wherein the middle portion is sealingly engaged with the lower portion and the upper portion to prevent escape of oil and gas from the tubular member.
8. The apparatus of claim 4 , wherein the middle portion is formed from a non-corrosive non-metallic material.
9. The apparatus of claim 4 , wherein the middle portion is formed from polyvinyl chloride.
10. The apparatus of claim 4 , wherein said upper portion carries a spout for directing oil from the tubular member to a collector.
11. The apparatus of claim 4 , wherein the wherein the upper portion is formed from a non-corrosive metallic material.
12. The apparatus of claim 4 , wherein the upper portion comprises an open top.
13. An apparatus for collecting oil and gas escaped from a sea-bottom wellhead, comprising:
a ring-shaped weighted base configured for positioning on a sea bottom in a generally surrounding relationship to the wellhead, said base having a central opening; and
an open-top tubular member secured to and extending upwardly from the base, said tubular member being configured to extend from an underwater location around the wellhead to an above-surface location, said tubular member channeling the escaped oil and gas ascending to a water surface.
14. The apparatus of claim 13 , wherein the tubular member comprises a metal lower portion secured to the base, a non-metallic middle portion affixed to the lower portion and extending upwardly therefrom, and a metal upper portion secured to the middle portion and extending upwardly to a location above the water surface.
15. The apparatus of claim 14 , wherein the lower portion is configured to extend into the sea bottom to a pre-determined distance and anchor the tubular member in relation to the wellhead.
16. The apparatus of claim 14 , wherein the middle portion is sealingly engaged with the lower portion and the upper portion to prevent escape of oil and gas from the tubular member.
17. The apparatus of claim 13 , wherein the middle portion is formed from polyvinyl chloride.
18. The apparatus of claim 13 , wherein said upper portion carries a spout for directing oil from the tubular member to a collector.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/804,667 US20120024533A1 (en) | 2010-07-27 | 2010-07-27 | Apparatus for collecting oil escaped from an underwater blowout |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US12/804,667 US20120024533A1 (en) | 2010-07-27 | 2010-07-27 | Apparatus for collecting oil escaped from an underwater blowout |
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US20120024533A1 true US20120024533A1 (en) | 2012-02-02 |
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Application Number | Title | Priority Date | Filing Date |
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US12/804,667 Abandoned US20120024533A1 (en) | 2010-07-27 | 2010-07-27 | Apparatus for collecting oil escaped from an underwater blowout |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9388670B2 (en) | 2012-09-07 | 2016-07-12 | Total Sa | Containment system and a method for using said containment system |
US9416632B2 (en) | 2012-09-07 | 2016-08-16 | Total Sa | Containment system |
US9506327B2 (en) | 2012-09-07 | 2016-11-29 | Total Sa | Containment system and a method for using such containment system |
WO2019151970A1 (en) * | 2018-01-30 | 2019-08-08 | Paturu Sumathi | Sea level gas separator of oil well effluent with incorporated emergency measures upon a well blow out |
US10400410B2 (en) * | 2011-02-03 | 2019-09-03 | Marquix, Inc. | Containment unit and method of using same |
CN114059953A (en) * | 2021-12-10 | 2022-02-18 | 江苏柏斯克石油机械有限公司 | Anti-leakage petroleum wellhead device and using method thereof |
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