WO2012008870A1 - Способ глушения подводной скважины и устройство для его реализации - Google Patents
Способ глушения подводной скважины и устройство для его реализации Download PDFInfo
- Publication number
- WO2012008870A1 WO2012008870A1 PCT/RU2011/000319 RU2011000319W WO2012008870A1 WO 2012008870 A1 WO2012008870 A1 WO 2012008870A1 RU 2011000319 W RU2011000319 W RU 2011000319W WO 2012008870 A1 WO2012008870 A1 WO 2012008870A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- well
- tank
- pipe
- expandable element
- cementitious composition
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 104
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000005086 pumping Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 230000002028 premature Effects 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 239000013535 sea water Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 229920000271 Kevlar® Polymers 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000004761 kevlar Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
- E21B33/076—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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 invention relates to the oil and gas industry and can be used for emergency jamming of wells. State of the art
- a known method of isolating absorption zones in a well comprising sequentially injecting a viscoelastic composition and a cement slurry into the well, and the cement grout is injected after the viscoelastic composition is held in the well for gelation until its structural strength reaches at least 80% of the ultimate strength (see RU, 21 1 1337 C1, class E21VZZ / 13).
- the known method can be used for killing wells under favorable conditions.
- the disadvantages of this method is the impossibility of its use for killing wells in the case of an underwater flowing well, when the well is not isolated from the surrounding aquatic environment. Such a situation may be, for example, in the event of an accident at a subsea well with a breakdown of the preventer.
- the closest in technical essence - the prototype to the device according to option 1 is an inflatable packer assembly containing a first expandable tubular element having a pair of ends, a first pair of annular end supports for securing the respective ends of the first tubular element relative to the mandrel located in the first tubular element, one of the end supports is movable, and the other end support is fixed relative to the mandrel, and the first annular mounting unit deployed from one of the end supports I strengthen the first tubular element when creating pressure in it and expanding it, pivotally connected by one of its ends to one of the end supports to strengthen the first tubular element when creating pressure in it and expanding, able to expand at its other end and containing many plates, located in an annular configuration, articulated at one end with a movable end support and each having a width increasing from its articulated end to its other end (see RU 2384692 C2, cl. ⁇ 33/12, ⁇ 21 ⁇ 49/00).
- the known device can be used to temporarily isolate the area of the wellbore, however, cannot be used to silence the gushing well, since it does not require funds to enter the depth of the well in the presence of an oncoming flow of a mixture of oil, gas, water and rock-fluid, as well as funds for fixing at a given depth, since the expansion of the tubular elements significantly increases the buoyancy force.
- the closest in technical essence - the prototype to the device according to option 2 is an inflatable packer assembly containing a first expandable tubular element having a pair of ends, a first pair of annular end supports for securing the respective ends of the first tubular element relative to the mandrel located in the first tubular element, one of the end supports is movable, and the other end support is fixed relative to the mandrel, and the first annular mounting unit deployed from one of the end supports I gain of the first tubular member to create a pressure therein and its extension pivotally connected with one of its ends with one of the end supports for the amplification of the first tubular element when creating pressure in it and expanding it, capable of expanding at its other end and containing many plates located in an annular configuration, articulated at one end with a movable end support and having, each, a width that increases from its articulated end to the other its end (see RU 2384692 C2, CL ⁇ 33/12, ⁇ 49/00).
- the known device can be used to temporarily isolate the area of the wellbore, however, it cannot be used to silence the gushing well, since it does not suggest means for entering into the depth of the well in the presence of an oncoming fluid flow, as well as means for fixing at a given depth, since the expansion of the tubular elements significantly increases the buoyancy force.
- the objective and the technical result caused by it is to reduce the volume of consumables and material costs for killing the well, as well as providing the possibility of emergency jamming of the gushing well with an underwater location of the mouth.
- the specified technical result is achieved by the fact that in the method of emergency killing of a well with an underwater location of the wellhead, which consists in pumping a cementing composition, first, based on the state of the well and pressure in it, the size of the well section to be cemented and the depth of installation of the injector in the well is determined; to the bottom and injected at the mouth of the emergency well to a predetermined depth an injector mounted on a tank with cementitious composition and placed inside a bag of flexible material , fill the bag with a cementitious composition, pumping it into the bag from the tank through the injector, ensure a tight fit of the external surface of the bag to the inner surface of the well section, while holding the injector at a predetermined depth due to the weight of the entire structure filled with cementitious composition, maintain pressure in the bag after injection before the hardening of the cementitious composition.
- the injector is injected into the wellhead directly or through an open emergency preventer using a robot or bathyscaphe;
- the objective and the technical result caused by it is to provide the possibility of emergency jamming of the gushing well, for 100 due to the possibility of overcoming the buoyancy force of the fluid flow when the device is introduced to a given depth of the well and increase the volume of the expandable element.
- the specified technical result is achieved by the fact that in the device for implementing the method of emergency jamming of a well with an underwater location
- option 1 containing a pipe and an expandable element, a cementing tank mounted on the wellhead is inserted rigidly connected to the pipe, the tank is equipped with a piston dividing the interior of the tank into at least two cavities: the first cavity is filled with cementing composition and connected with injection pipe
- the cementing composition is inside the expandable element, and the second cavity is made with the possibility of filling it with outboard water, while the pipe is made with a sealed lower end, and the expandable element is made of flexible material, with the possibility of filling its internal space with a cementing composition from the tank through an opening in the side wall pipes.
- the length of the pipe is selected so that the expandable element can be located on the section of the well with undamaged walls and has a length sufficient to reliably kill the well;
- the expandable element is made in the form of a bag in a shape close to the cylinder and in the initial state is tied with elastic belts; 120 - the tank is equipped with fasteners for suspension on a descent cable and made with the possibility of shifting the center of gravity to change the angle of inclination of the structure;
- the tank is equipped with guides for the movement of the piston
- the inner space of the first cavity of the tank is connected with the inner 125 space of the pipe through a valve or a controlled valve to prevent premature leakage of the cementitious composition under its own weight into the expandable element;
- the design is equipped with an electric propulsion unit with a video camera and a searchlight for controlling the device from the side of the surface vehicle;
- the bottom end of the pipe is equipped with a conical end cap.
- the end part of the expandable element is mounted on a spring-loaded coupling mounted on the pipe, with the possibility of its movement along the pipe when
- the objective and the technical result caused by it is to enable emergency jamming of the gushing well due to the possibility of overcoming the buoyancy force of the fluid flow when the device 140 is inserted to a given well depth and the volume of the expandable element is increased.
- a tank for cementing composition installed at the wellhead rigidly connected to the pipe, the tank is equipped with a piston dividing the interior of the tank into at least two cavities: the first is filled with cementing composition and connected to the internal space of the expandable element, and the second is made with the possibility of filling it
- the expandable element is made of flexible material, with the possibility of filling its internal space with a cementitious composition from the tank, and covers the lower section of the pipe, and the upper section the pipe is equipped with a locking unit with pipe fastening elements.
- the length of the pipe is selected so that the expandable element can be located on the section of the well with undamaged walls and has a length sufficient to reliably kill the well;
- the expandable element is made in the form of a bag in the form close to cylindrical and in the initial state is tied with elastic belts;
- the tank is equipped with fasteners for suspension on the descent cable, which are made with the possibility of shifting the center of gravity to change the angle of inclination of the structure;
- the internal space of the first cavity of the tank is connected with the internal space of the expandable element through a valve or a controlled valve
- the second cavity of the tank is equipped with a pump with a cable for its control from the side of the surface vehicle;
- the pipe section located inside the tank is made in the form of a 170 guide for the movement of the piston;
- a locking unit is installed in the upper part of the pipe and is designed to output a fluid flow or injection into the well of a cementing composition
- the design is equipped with an electric motor with a video camera and a searchlight for controlling the device from the side of the surface vehicle;
- - diaphragm valves are installed on the sides of the tank for each cavity to equalize the pressure in them with the environment.
- FIG. 1 shows the descent 185 of a device for implementing an emergency shut-off method with an underwater well the location of the mouth
- FIG. 2 - drawing of the device option 1, for implementing the method of emergency killing of a well with an underwater location of the wellhead at the stage of introducing the device into the well
- FIG. 3 - drawing of the device option 1, for implementing the method of emergency jamming of a well with an underwater location
- 200 is the bottom level
- 19 is the lower end of the pipe
- 20 is water
- 21 is the piston guide
- 22 is a locking assembly with detachable pipe fastening elements for pumping out the fluid or injecting the cementitious composition.
- the method of emergency killing of a well with an underwater location of the mouth consists in lowering it to the bottom (Fig. 1) and introducing it into the mouth of the emergency
- an injector mounted on a tank with a cementitious composition, placed inside a bag of flexible material, configured to take the shape of the inner surface of a squeegee sheet while expanding its volume, pump a cementitious composition from the tank through the injector into the bag, holding the injector at a given depth behind
- the injector is injected into the wellhead directly or through an open emergency preventer using a robot or bathyscaphe.
- the weight of the structure with the cementitious composition is chosen so that it is higher than the force of the injector pushing out of the well during the injection of the cementitious composition, while the dimensions of the bag and the injection pressure of the cementitious composition are selected so that the bag with the pumped into it cementing composition filled the internal volume of the well, taking it
- the method of emergency killing wells with an underwater location of the mouth is implemented as follows.
- a tank with an elongated injector is lowered to the bottom of the wellhead on a cable, covered by a bag of flexible material and shaped like a cylinder. Due to the flexibility of the material, the bag is able to take the form of the inner surface of the well section with an increase in its volume due to subsequent pumping into the bag
- cementing composition from the tank through the injector and inject the injector at the mouth of the emergency well to a predetermined depth.
- the injection of the injector is carried out using a robot or bathyscaphe equipped with a manipulator.
- the injector is mounted on a tank, the weight of which with cementitious composition exceeds the buoyancy force of the mixture - fluid, flowing from the well,
- the cementing composition is pumped into the bag, which expands as a result, filling the internal space of the well section.
- the flexible material fits snugly against the inner walls of the well, repeating the unevenness of the walls of its inner surface.
- composition acts as a plug filling the volume of the emergency well section and holding it at the set depth due to the mass of the structure and friction of the bag material with the inner surface of the well walls and filling of the recesses of the well walls or the preventer.
- Depth of cementation should be selected sufficient for reliable
- an injector is made, fixed to the bottom of the cementing tank.
- the injector is wrapped in a bag of flexible, plastic material made in a shape close to the cylinder.
- the length of the injector is determined by the state of the emergency well, so that the injector can be submerged to the level of the site
- This length can be 10-20 meters or more.
- the idle emergency valve is removed and the remaining pipe is cut off at the bottom surface. Then the injector mounted on the tank is lowered on the cable from the vessel, and with the help of a robot the injector is started at the wellhead.
- the weight of the structure with cementitious composition can be tens or more tons, which prevents the injector from pushing the mixture from oil, gas, water and rock (fluid) out of the well with a gushing stream.
- the bag (expandable element) is made of flexible material and after
- the pressure inside the bag is maintained by a pump until the cementitious composition has completely hardened, after which the resulting plug reliably prevents fluid from leaving the well, and the well can be considered
- the cementitious composition is not washed out by the flow of the gushing fluid, as may be the case in the prototype, since it is located in the confined space of the expandable element.
- the amount of cementitious composition is determined by the volume of the expandable element. The mass of the composition and 285 the pressure created by the pump overcomes the forces pushing out by the fluid flow until the cementitious composition completely hardens.
- the claimed method can be implemented using standard devices (tank, pipe, etc.) and electrical appliances, such as a pump, winch, etc.
- the claimed method provides emergency killing of a gushing well with an underwater location of the wellhead, as well as reducing the volume of spent cement composition and material costs for killing the well and, accordingly, to eliminate the consequences of the accident.
- a device for implementing the method of emergency killing of a well with an underwater location of the mouth, option 1 contains a pipe (Fig. 2), an expandable element - a bag, a tank for cementing composition and water, rigidly connected to the pipe, which is perforated with a muffled lower end equipped with tapered tip for
- the tank capacity is selected based on the assumption that the weight of the tank filled with cementitious composition exceeds the buoyancy force of the stream flowing from the well.
- the expandable element is made of flexible material that forms a closed volume, the pipe is located inside the expandable element, the tank is equipped with a piston separating
- the interior of the tank is divided into two cavities: the first is filled with a cementitious compound and connected to a pipe for pumping the composition into the expandable element, and the second cavity is equipped with a pump for pumping outboard water into it.
- the length of the pipe is chosen so that the expandable element is located on 310 sections of the well with undamaged walls;
- the expandable element in the initial state is tied up with elastic belts, and the tank is equipped with fastenings for suspension on the cable, which are made with the possibility of shifting the center of gravity to change the angle of inclination of the structure;
- the upper part of the perforated pipe is equipped with a valve, for example an electromagnetic one, to prevent premature leakage of the cementitious composition under its own weight into the expandable element;
- the pump and the solenoid valve are equipped with a cable to control the device from the side of the surface vehicle.
- the design is equipped with an electric motor with a video camera and a searchlight for controlling the device from the side of the surface vehicle.
- the tank is equipped with guides for the movement of the piston.
- the end part of the expandable element is mounted on a spring-loaded coupling mounted on the pipe, with the possibility of its movement along the pipe with an increase in the volume of the expandable element.
- the length of the pipe is chosen so that the size of the expandable element is sufficient for reliable killing of the well.
- membrane valves are installed on the sides of the tank for each cavity to equalize the pressure in them with the environment.
- option 1 works as follows.
- One cavity of the tank is filled with cementitious composition.
- Another cavity designed for pumping overboard water is filled with sea water, which prevents its deformation when immersed to a depth.
- the device is in working condition suspended on a cable and descends from the vessel in the area of the emergency well. Due to the elongated mounting element, the device in a suspended state has a stable vertical orientation. If the wellhead has a slope, then due to the displacement of the suspension point, and, accordingly, the center of gravity, the required angle of inclination of the structure is set. Using a robot or bathyscaphe, a pipe fixed to the bottom of the tank is sent to the wellhead, after which the device is lowered into the well.
- the device can be equipped with propulsion and video cameras with searchlights to control its spatial orientation from the vessel, which eliminates the use of the robot.
- the expandable element In the initial state, the expandable element is tensioned by means of a spring-loaded coupling and environmental pressure and covers the pipe without any sagging. Additionally, the expandable element in several places is tightened with elastic straps to prevent any sagging during the preparation of the device above the water surface and to reduce the resistance to the input of the device into the well. Diaphragm valves align the pressure in the tank with the ambient pressure, preventing water hammer when the pump is turned on and the solenoid valve is opened near the bottom.
- buoyancy force gushing mixture (fluid).
- the length of the pipe is selected from the condition that it penetrates to a depth with undamaged casing walls or to a depth where the degree of destruction of the walls of the well is considered acceptable for reliable well plugging.
- a pump is switched on, which pumps overboard water into the corresponding compartment of the tank (Fig. 3 is shown by an arrow) creating excessive pressure, which pushes the piston, which in turn pushes the cement mixture into the pipe. Piston moves along
- the elastic belts stretch or break, without interfering with the increase in the volume of the expandable element.
- the material adheres tightly to the internal walls of the well, repeating surface irregularities and providing a rigid fixation of the device in the well after the cementing composition has hardened.
- a pressure is maintained using a pump that exceeds the buoyancy force of the fluid flow to the expandable element. After the cementitious composition has hardened, the device is a reliable barrier to the exit of fluid from the well, and the well can be considered plugged.
- the claimed device can be made of sheet and profile 390 metal by machining, using durable fabric such as Kevlar and standard devices: a water pump, an electric motor, etc.
- the claimed device provides the possibility of emergency jamming of the gushing well, due to the possibility of overcoming the buoyancy force of the fluid flow when the device is entered at 395 predetermined depth of the well and increasing the volume of the expandable element
- the use of the claimed device eliminates the leaching of the cementitious composition from the silenced well.
- a pipe (Fig. 4) and an expandable element, a tank for cementitious composition and water, rigidly fixed to the pipe penetrating the tank, and an expandable element, which is made in the form of a bag of flexible material, forming a closed volume form close to cylindrical.
- Tank capacity is selected from the calculation,
- the pipe is equipped with a shut-off unit for pumping oil products or injection into the well of a cementing composition, while the shut-off element is equipped with detachable elements with a pipeline for pumping oil or pumping
- the tank is equipped with a piston dividing the interior of the tank into at least two cavities: the first is filled with a cementitious compound and communicates with the interior of the expandable element, and the second is equipped with a pump for injecting water.
- the length of the pipe is chosen so that the expandable element can
- the expandable element is tied with elastic straps, and the tank is equipped with fastenings for suspension on a descent cable, which are made with the possibility of shifting the center of gravity to change the angle of inclination of the structure;
- the device is equipped with a valve, for example an electromagnetic valve, to prevent premature leakage of the cementitious composition under its own weight into the expandable element;
- a valve for example an electromagnetic valve
- the cavity of the tank designed for pumping outboard water into it, is equipped with a pump with a cable for its control from the side of the surface vehicle. 425
- the pump and the solenoid valve are equipped with a cable for control from the board of the surface vehicle
- the design is equipped with an electric motor with a video camera and a searchlight for control from the surface vehicle without involving a robot.
- the pipe inside the tank is made in the form of a guide for movement of the piston 430.
- the length of the pipe is chosen so that the size of the expandable element is sufficient for reliable killing of the well.
- membrane valves are installed on the sides of the tank for each cavity to equalize the pressure in them with the environment.
- option 2 A device for implementing the method of emergency killing of a well with an underwater location of the wellhead, option 2 works as follows.
- One cavity of the tank is filled with cementitious composition.
- Another cavity intended for pumping overboard water is filled with overboard water to prevent its deformation at a depth.
- the 440 state is suspended on a cable and descends from the vessel to the area of the emergency well. Due to the elongated mounting element, the device in a suspended state has a stable vertical orientation. If the wellhead has a slope, then due to the displacement of the suspension point, and, accordingly, the center of gravity, the required angle of inclination is set
- a pipe located below the tank is sent to the wellhead, after which the device is lowered into the well.
- the device can be equipped with controlled movers, video cameras and searchlights to control its spatial orientation from the vessel without involving a robot or bathyscaphe.
- the expandable element In the initial state, the expandable element is in a folded state, and is pulled in several places by elastic belts to prevent any sagging during preparation of the device above the water surface and any resistance to the device’s entry into the well.
- the locking unit of the hollow pipe is open. Diaphragm valves equalize the pressure in the tank with
- the 460 state of the hollow pipe allows overcoming the buoyancy force of the gushing fluid mixture acting on the expandable element.
- the pipe diameter is selected from the condition of the necessary reduction of the buoyancy force on the expandable element due to the free flow of fluid through it — the larger its internal diameter, the lower the magnitude of this force.
- 465 is selected from the condition of falling to a depth with undisturbed casing walls or to a depth where the degree of destruction of the borehole walls is considered acceptable. In the final position of the device’s entry into the well, the tank bottom rests against the end of the casing or the preventer, or on the ground.
- a pump is switched on, which allows the outboard water to be pumped into the corresponding compartment of the tank (Fig. 4 is shown by an arrow), creating excess pressure that pushes the piston, which in turn pushes the cementitious mixture into the expandable element through the corresponding connection, while the valve or valve between the tank and
- the cementitious mixture from the tank enters the expandable element, which expands, increasing in volume.
- the fluid flow freely flows through the pipe into the sea, reducing the buoyancy force on the expandable element.
- the elastic belts stretch or break, without interfering with the increase in the volume of the expandable element.
- the walls of the expandable element are made of flexible material; therefore, when the expandable element is filled with a cementitious composition, material 485 adheres to the inner walls of the well, repeating irregularities of its surface and providing a rigid fixation of the device in the well after the cementing composition has hardened.
- shut-off unit 495 installed at the end of the pipe is shut off, or it is used to pump fluid or pump a cementitious composition into the well to completely shut it off, while the pipeline is connected through detachable elements of the shut-off unit.
- the claimed device can be made of durable fabric such as 500 Kevlar, sheet and profile metal by machining using standard devices: a water pump, an electric motor, etc.
- the claimed device provides the possibility of emergency jamming of the gushing well, due to overcoming the buoyancy force of the gushing flow of oil products acting on the 505 expandable element.
- the use of the claimed device eliminates the leaching of the cementitious composition from the silenced well.
- the device provides controlled access to the borehole channel.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG2013004486A SG187148A1 (en) | 2010-07-14 | 2011-05-11 | Method of emergency killing of a well of underwater head position and a device for its implementation (variants) |
US13/809,645 US9010435B2 (en) | 2010-07-14 | 2011-05-11 | Method and device for emergency killing of an underwater oil/gas well |
EA201300090A EA022844B1 (ru) | 2010-07-14 | 2011-05-11 | Способ аварийного глушения скважины с подводным расположением устья и устройство для его осуществления (варианты) |
KR1020137003691A KR101675186B1 (ko) | 2010-07-14 | 2011-05-11 | 수중 유정을 봉쇄하는 방법 및 상기 방법을 실행하는 장치 |
CA2841627A CA2841627C (en) | 2010-07-14 | 2011-05-11 | Method and device for emergency killing of an underwater oil/gas well |
NO20130237A NO346507B1 (no) | 2010-07-14 | 2013-02-13 | Fremgangsmåte for plugging av en undersjøisk brønn og apparat for å utføre fremgangsmåten |
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RU2010129040 | 2010-07-14 | ||
RU2010129040/03A RU2449109C2 (ru) | 2010-07-14 | 2010-07-14 | Способ аварийного глушения скважины с подводным расположением устья и устройство для его осуществления (варианты) |
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PCT/RU2011/000319 WO2012008870A1 (ru) | 2010-07-14 | 2011-05-11 | Способ глушения подводной скважины и устройство для его реализации |
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US (1) | US9010435B2 (ru) |
KR (1) | KR101675186B1 (ru) |
CA (1) | CA2841627C (ru) |
EA (1) | EA022844B1 (ru) |
NO (1) | NO346507B1 (ru) |
RU (1) | RU2449109C2 (ru) |
SG (1) | SG187148A1 (ru) |
WO (1) | WO2012008870A1 (ru) |
Families Citing this family (11)
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US20120234553A1 (en) * | 2011-03-17 | 2012-09-20 | Murphy Kent D | Mechanism for plugging subsea leaks |
WO2013090977A1 (en) * | 2011-12-19 | 2013-06-27 | Nautilus Minerals Pacific Pty Ltd | A delivery method and system |
DE102013003639B3 (de) * | 2013-03-05 | 2014-06-18 | Uwe ROHDE | Vorrichtung und Verfahren zum Abführen eines aus dem Meeresgrund hervorquellenden Materials |
US9334707B1 (en) * | 2013-03-19 | 2016-05-10 | Roy L. Adger, Jr. | Emergency well plug apparatus |
US20150159455A1 (en) * | 2013-12-06 | 2015-06-11 | Julius C. Trawick | System and method to stop underwater oil well leaks |
GB201417556D0 (en) * | 2014-10-03 | 2014-11-19 | Meta Downhole Ltd | Improvements in or relating to morphing tubulars |
US10287849B2 (en) * | 2015-10-19 | 2019-05-14 | Exxonmobil Upstream Resarch Company | Subsea well control system |
US9784062B1 (en) | 2016-03-18 | 2017-10-10 | Horacio Solis | Pipe cutting and plugging device |
RU2726742C1 (ru) * | 2019-10-08 | 2020-07-15 | Общество с ограниченной ответственностью "Газпром газобезопасность" | Способ ликвидации открытых фонтанов на морских скважинах при подводном расположении их устья |
CN114635659B (zh) * | 2022-04-07 | 2023-10-31 | 中勘资源勘探科技股份有限公司 | 一种地面钻孔负压式封堵漏失地层井口装置及方法 |
US20230366312A1 (en) * | 2022-05-12 | 2023-11-16 | Baker Hughes Energy Technology UK Limited | System and method for subsea well leak detection and containment |
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2010
- 2010-07-14 RU RU2010129040/03A patent/RU2449109C2/ru active
-
2011
- 2011-05-11 SG SG2013004486A patent/SG187148A1/en unknown
- 2011-05-11 CA CA2841627A patent/CA2841627C/en active Active
- 2011-05-11 US US13/809,645 patent/US9010435B2/en active Active
- 2011-05-11 EA EA201300090A patent/EA022844B1/ru not_active IP Right Cessation
- 2011-05-11 KR KR1020137003691A patent/KR101675186B1/ko active IP Right Grant
- 2011-05-11 WO PCT/RU2011/000319 patent/WO2012008870A1/ru active Application Filing
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2013
- 2013-02-13 NO NO20130237A patent/NO346507B1/no unknown
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SU1458560A1 (ru) * | 1986-07-09 | 1989-02-15 | А. К. Ермаков, С. А. Ермаков и А.А. Абрашин | Устройство дл глушени нефтегазовых скважин |
RU2010951C1 (ru) * | 1991-09-30 | 1994-04-15 | Алексей Николаевич Белашов | Запорная арматура и устройство для ее принудительного наведения на устьевое оборудование открыто фонтанирующей скважины |
RU2100567C1 (ru) * | 1992-04-24 | 1997-12-27 | Валерий Иванович Ивашов | Способ глушения глубоких и сверхглубоких скважин и трубопроводов |
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Also Published As
Publication number | Publication date |
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KR101675186B1 (ko) | 2016-11-10 |
EA022844B1 (ru) | 2016-03-31 |
US20130118756A1 (en) | 2013-05-16 |
EA201300090A1 (ru) | 2013-05-30 |
CA2841627A1 (en) | 2012-01-19 |
RU2449109C2 (ru) | 2012-04-27 |
NO346507B1 (no) | 2022-09-12 |
NO20130237A1 (no) | 2013-02-13 |
KR20130041206A (ko) | 2013-04-24 |
US9010435B2 (en) | 2015-04-21 |
CA2841627C (en) | 2018-07-31 |
RU2010129040A (ru) | 2012-01-20 |
SG187148A1 (en) | 2013-02-28 |
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