CN105971547B - Device and method for emergency rescue of cluster wellhead blowout of offshore drilling platform - Google Patents
Device and method for emergency rescue of cluster wellhead blowout of offshore drilling platform Download PDFInfo
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- CN105971547B CN105971547B CN201610468278.0A CN201610468278A CN105971547B CN 105971547 B CN105971547 B CN 105971547B CN 201610468278 A CN201610468278 A CN 201610468278A CN 105971547 B CN105971547 B CN 105971547B
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- sleeve
- optical
- blowout preventer
- blowout
- fixing frame
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- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000003287 optical effect Effects 0.000 claims abstract description 66
- 210000001503 joint Anatomy 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 2
- 241001330002 Bambuseae Species 0.000 abstract description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 2
- 239000011425 bamboo Substances 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003912 environmental pollution Methods 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
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
- E21B33/064—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers specially adapted for underwater well heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
Abstract
The invention provides a cluster wellhead blowout emergency device of an ocean drilling platform, which can realize rapid and automatic butt joint with an optical casing head after the blowout emergency device is in place when blowout accidents occur in the process of drilling and completing well completion, and can close a sleeve fluid channel by closing an annular blowout preventer and a full ram blowout preventer after the butt joint is completed. The blowout emergency device of the invention comprises: rooting system, bottom mount, mount supporter, mount motion hydro-cylinder, two-layer support body, lift cylinder, two-layer platform, transverse guide, mount, totally enclosed ram preventer, open-blow cross, carriage, longitudinal guide, annular preventer, sleeve chucking ware, mount motion track, lift cylinder support section of thick bamboo. The invention can rapidly and automatically close the wellhead when the cluster well of the ocean drilling platform is blown out, improves the safety of the blowout emergency process, prevents the explosion and ignition accident of the ocean platform caused by blowout, and reduces the economic loss.
Description
Technical Field
The invention relates to a blowout emergency device in the drilling and completion operation process of the petroleum industry, in particular to an emergency device when blowout occurs in the cluster well drilling and completion process of an ocean drilling platform, and also relates to an emergency method when blowout occurs in the cluster well drilling and completion process of the ocean drilling platform.
Background
In the drilling and completion process of the marine drilling platform, blowout accidents are extremely easy to occur due to inaccurate formation pressure control, low mud density, pulling and sucking, improper measures and the like, and the blowout accidents are catastrophic accidents, so that serious casualties, environmental pollution and huge property loss can be caused.
Due to factors such as changeable offshore climate, sea stormy waves and ocean bottom undercurrent damage, compared with land drilling, the marine drilling platform is more prone to blowout accidents in the process of drilling and completion. The ocean drilling platform has narrow space, cluster wellhead is densely distributed, once blowout accidents occur, blowout emergency work can hardly be carried out, and toxic gas and explosion generated by the blowout emergency work catch fire, so that huge harm is brought to the life safety of workers and the ocean environment.
Disclosure of Invention
Aiming at blowout accidents of an ocean drilling platform, the invention provides a novel offshore cluster wellhead blowout emergency device and a novel offshore cluster wellhead blowout emergency method, which can quickly realize the butt joint of a blowout preventer and an optical sleeve when the blowout accidents occur, reduce the labor intensity of workers, shorten the operation time and enhance the operation safety.
An offshore drilling platform cluster wellhead blowout emergency device, comprising: the rooting system 1, a bottom fixing frame 2, a wellhead platform 3, a fixing frame support body 4, a fixing frame moving oil cylinder 5, a two-layer frame body 6, a lifting oil cylinder 7, a two-layer platform 8, a transverse guide rail 9, a fixing frame 10, a fully-sealed ram blowout preventer 11, a blowout cross 12, a sliding frame 13, a longitudinal guide rail 14, an annular blowout preventer 15, a sleeve clamping device 16, a fixing frame moving rail 17 and a lifting oil cylinder support cylinder 18;
the rooting system 1 and the lifting cylinder supporting cylinder 18 are respectively and rigidly connected with the bottom fixing frame 2, the left fixing frame moving track 17 and the right fixing frame moving track 17 are respectively and rigidly connected with the fixing frame supporting body 4, the fixing frame supporting body 4 is supported on the wellhead platform 3, the two-layer platform 8 is fixed on the two-layer frame body 6, the left and right longitudinal guide rails 14 are respectively fixed on the two-layer platform 8, the front and rear transverse guide rails 9 are respectively fixed on the sliding frame 13, the totally-enclosed ram blowout preventer 11, the blowout cross 12, the annular blowout preventer 15, the sleeve clamping device 16 and the fixing frame 10 are in flange connection, the bottom fixing frame 2 can move back and forth in the fixing frame moving track 17 under the action of the fixing frame moving cylinder 5, the two-layer frame body 6 can move up and down relative to the fixing frame 2 under the action of the lifting cylinder 7, the sliding frame 13 can move back and forth in the longitudinal guide rails 14, and the fixing frame 10 can move left and right in the transverse guide rails 9.
The invention also provides a cluster wellhead blowout emergency rescue method of the marine drilling platform based on the emergency rescue device, and if blowout accidents occur in the drilling and completion process of the marine drilling platform, the emergency rescue method comprises the following steps of:
firstly, clearing a blowout preventer with a wellhead fault and cutting a damaged casing head, cutting a platform along the periphery of an optical casing 19 to form a notch, lifting the whole device to the wellhead, supporting a fixed frame support body 4 on the wellhead platform 3, enabling a bottom fixed frame 2 to fall below the platform 3 through a platform hole, enabling the bottom fixed frame 2 to move back and forth in a fixed frame moving track 17 under the action of a fixed frame moving oil cylinder 5, centering the rooting system 1 and the optical casing 19 in the front-back direction, enabling left and right flashboard plates 20 in the rooting system 1 to move different distances under the action of three-level oil cylinders 23 on the left and right sides, and enabling the axes of a casing clamping device (16), an annular blowout preventer (15), a blowout cross (12) and a totally-sealed flashboard blowout preventer (11) to deviate from the axis of the optical casing (19) by a certain distance all the time in the centering process, so that the impact of high-pressure oil air flow on the device is avoided in the centering process of the rooting system (1) and the optical casing (19), and the stability of the movement in the centering process is facilitated; after centering, the rooting system 1 uses the locking function to clamp the optical sleeve 19; the rooting device 1 clamps the optical sleeve 19, ensures stable movement in the process of centering the sleeve clamping device 16, the annular blowout preventer 15, the open-flow four-way valve 12 and the flashboard blowout preventer 11 with the optical sleeve 19, the sliding frame 13 moves back and forth in the longitudinal guide rail 14 under the action of the sliding frame back and forth movement oil cylinder 34, and the fixing frame 10 moves left and right in the transverse guide rail 9 under the action of the fixing frame transverse movement oil cylinder 33, so that the centering of the sleeve clamping device 16, the annular blowout preventer 15, the open-flow four-way valve 12 and the fully-sealed flashboard blowout preventer 11 with the optical sleeve 19 is realized; after centering is completed, the two-layer frame body 6 moves downwards relative to the bottom fixing frame 2 under the action of the lifting oil cylinder 7, when the optical sleeve 19 passes through the sleeve clamping device 16 and enters the annular blowout preventer 15 for a certain distance, the downward movement of the optical sleeve is stopped, the lifting oil cylinder 27 in the sleeve clamping device 16 drives the tray 29 to move downwards, the locking slips 31 move downwards along the conical body 32 under the action of the connecting block 30 to clamp the optical sleeve 19, the conical surface of the locking slips 31 has a locking function, the sleeve clamping device 16 clamps the optical sleeve 19 body, and the inner guide cylinder 28 descends along the outer guide cylinder 26 in the downward movement process of the tray 29 to play a guiding role; after the sleeve clamping device 16 clamps the optical sleeve 19, the well blowout emergency device is in butt joint with the optical sleeve head, after the butt joint is completed, the flashboard 20 in the rooting system 1 loosens the optical sleeve 19 body, the annular blowout preventer 15 works, the annular space between the annular blowout preventer 15 and the optical sleeve 19 is closed, the flashboard blowout preventer 11 is fully closed to work, and the fluid passage in the optical sleeve 19 is closed.
The beneficial results of the invention are:
(1) The cluster wellhead blowout accident of the ocean drilling platform is solved;
(2) The connection between the blowout preventer and the optical casing head under the blowout condition is realized;
(3) The safety of the blowout emergency process is improved, the emergency time is shortened, and the economic loss is reduced;
(4) Further deterioration of the blowout accident is prevented.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: the invention relates to an overall structure schematic diagram of a marine cluster wellhead blowout emergency device;
fig. 2: the offshore cluster wellhead blowout emergency device is a schematic diagram after being in butt joint with an optical sleeve;
fig. 3: the rooting system structure of the invention is schematically shown;
fig. 4: the sleeve clamping device is structurally schematic;
fig. 5: the invention discloses a blowout preventer centering structure schematic diagram.
Reference numerals: 1-rooting system, 2-bottom fixing frame, 3-wellhead platform, 4-fixing frame supporting body, 5-fixing frame moving cylinder, 6-two-layer frame body, 7-lifting cylinder, 8-two-layer platform, 9-transverse guide rail, 10-fixing frame, 11-full-seal ram blowout preventer, 12-open-discharge four-way, 13-sliding frame, 14-longitudinal guide rail, 15-annular blowout preventer, 16-sleeve clamping device, 17-fixing frame moving track, 18-lifting cylinder supporting cylinder, 19-light sleeve, 20-ram, 21-rooting slip, 22-outer shell, 23-three-level cylinder, 24-baffle, 25-horn mouth, 26-outer guide cylinder, 27-lifting cylinder, 28-inner guide cylinder, 29-tray, 30-connecting block, 31-locking slip, 32-conical body, 33-fixing frame transverse moving cylinder and 34-sliding frame front-back moving cylinder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a cluster wellhead blowout emergency device of an ocean drilling platform, which can be connected with an optical casing head after a blowout preventer and the casing head which are damaged at a wellhead are cleaned when blowout occurs and the casing head of the wellhead is seriously damaged in the cluster well drilling and completion process of the ocean drilling platform.
As shown in fig. 1, the cluster wellhead blowout emergency device of the marine drilling platform of the present invention comprises: rooting system 1, bottom mount 2, well head platform 3, mount supporter 4, mount motion hydro-cylinder 5, two-layer support body 6, lift cylinder 7, two-layer platform 8, transverse guide 9, mount 10, full-seal ram blowout preventer 11, blow-out cross 12, carriage 13, longitudinal guide 14, annular blowout preventer 15, sleeve chucking ware 16, mount motion track 17, lift cylinder support section of thick bamboo 18.
The rooting system 1 and the lifting cylinder supporting cylinder 18 are respectively and rigidly connected with the bottom fixing frame 2, the left fixing frame moving track 17 and the right fixing frame moving track 17 are respectively and rigidly connected with the fixing frame supporting body 4, the fixing frame supporting body 4 is supported on the wellhead platform 3, the two-layer platform 8 is fixed on the two-layer frame body 6, the left and right longitudinal guide rails 14 are respectively fixed on the two-layer platform 8, the front and rear transverse guide rails 9 are respectively fixed on the sliding frame 13, the totally-enclosed ram blowout preventer 11, the blowout cross 12, the annular blowout preventer 15, the sleeve clamping device 16 and the fixing frame 10 are in flange connection, the bottom fixing frame 2 can move back and forth in the fixing frame moving track 17 under the action of the fixing frame moving cylinder 5, the two-layer frame body 6 can move up and down relative to the fixing frame 2 under the action of the lifting cylinder 7, the sliding frame 13 can move back and forth in the longitudinal guide rails 14, and the fixing frame 10 can move left and right in the transverse guide rails 9.
The implementation process of the cluster wellhead blowout emergency device for the offshore drilling platform is as follows:
in the event of a blowout accident during the drilling and completion of the offshore drilling platform, the blowout preventer with the wellhead failure is cleaned first, the damaged casing head is cut, and then a notch is cut into the platform around the optical casing 19. After the whole device is lifted to a wellhead, a fixed frame support body 4 is supported on the wellhead platform 3, a bottom fixed frame 2 is lowered below the platform 3 through a platform hole, the bottom fixed frame 2 moves back and forth in a fixed frame moving track 17 under the action of a fixed frame moving oil cylinder 5, centering of a rooting system 1 and an optical sleeve 19 in the front-back direction is realized, a left flashboard 20 and a right flashboard 20 in the rooting system 1 move different distances under the action of three-level oil cylinders 23 on the left side and the right side, centering of the rooting system 1 and the optical sleeve 19 can be realized, and in the centering process, the axes of a sleeve clamping device (16), an annular blowout preventer (15), an open blowout preventer (12) and a totally-sealed flashboard (11) are always deviated from the axis of the optical sleeve (19) by a certain distance, so that impact of high-pressure oil air flow on the device is avoided in the centering process of the rooting system (1) and the optical sleeve (19), and the moving stability in the centering process of the rooting system (1) and the optical sleeve (19) is facilitated; after centering, the rooting system 1 uses the locking function to clamp the optical sleeve 19, and the structure of the rooting system 1 is shown in fig. 3. After the rooting device 1 clamps the optical sleeve 19, a powerful condition is provided for stable movement in the centering process of the sleeve clamping device 16, the annular blowout preventer 15, the blowout four-way valve 12 and the flashboard blowout preventer 11 and the optical sleeve 19, the sleeve clamping device 16, the annular blowout preventer 15, the blowout four-way valve 12 and the total flashboard blowout preventer 11 and the optical sleeve 19 are in a schematic view as shown in fig. 5, the sliding frame 13 moves back and forth in the longitudinal guide rail 14 under the action of the sliding frame back and forth movement cylinder 34, the fixed frame 10 moves left and right in the transverse guide rail 9 under the action of the fixed frame transverse movement cylinder 33, so that the sleeve clamping device 16, the annular blowout preventer 15, the blowout four-way valve 12 and the total flashboard blowout preventer 11 and the optical sleeve 19 are centered, after centering is completed, the two-layer frame body 6 moves downwards relative to the bottom fixed frame 2 under the action of the lifting cylinder 7, and stops moving downwards when the optical sleeve 19 passes through the sleeve clamping device 16 and enters the annular blowout preventer 15 for a certain distance, the lifting cylinder 27 drives the tray 29 to move downwards in the sleeve clamping device 16, the locking slips 31 move downwards along the conical body 32 under the action of the connecting block 30, the optical sleeve clamping device 19 is guided by the sliding frame 19, the optical sleeve clamping device 19 has the function of guiding the light sleeve clamping device 16 to move downwards along the conical surface body 32, and the locking sleeve body 28 is guided by the locking sleeve body 28 to clamp the clamping device 16 to move outwards as shown in the figure 28. After the casing clamping device 16 clamps the optical casing 19, the well blowout emergency device and the optical casing head are in butt joint, a schematic diagram is shown in fig. 2 after the butt joint is completed, the flashboard 20 in the rooting system 1 loosens the optical casing 19 body, the annular blowout preventer 15 works, the annular space between the annular blowout preventer 15 and the optical casing 19 is closed, the flashboard blowout preventer 11 is fully sealed, and the fluid passage in the optical casing 19 is closed.
According to the invention, when a blowout accident occurs, the butt joint of the blowout preventer and the optical sleeve is realized rapidly, the labor intensity of workers is reduced, the operation time is shortened, and the operation safety is enhanced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. The utility model provides a marine drilling platform cluster wellhead blowout rescue device which characterized in that includes: the rooting system comprises a rooting system (1), a bottom fixing frame (2), a wellhead platform (3), a fixing frame support body (4), a fixing frame moving oil cylinder (5), a two-layer frame body (6), a lifting oil cylinder (7), a two-layer platform (8), a transverse guide rail (9), a fixing frame (10), a full-closed ram blowout preventer (11), a blowout cross (12), a sliding frame (13), a longitudinal guide rail (14), an annular blowout preventer (15), a sleeve clamping device (16), a fixing frame moving track (17) and a lifting oil cylinder support cylinder (18);
the rooting system (1) and the lifting cylinder supporting cylinder (18) are respectively and rigidly connected with the bottom fixing frame (2), a fixing frame moving track (17) is respectively and horizontally connected with a fixing frame supporting body (4), the fixing frame supporting body (4) is supported on the wellhead platform (3), the two layers of platforms (8) are fixed on the two layers of frame bodies (6), the longitudinal guide rails (14) are respectively and horizontally arranged on the two layers of platforms (8), the transverse guide rails (9) are respectively and horizontally arranged on the sliding frame (13), the totally-enclosed ram blowout preventer (11), the open-flow four-way valve (12), the annular blowout preventer (15), the sleeve clamping device (16) and the fixing frame (10) are in flange connection, the bottom fixing frame (2) moves back and forth in the fixing frame moving track (17) under the action of the fixing frame moving cylinder (5), the two layers of frame bodies (6) move back and forth in the longitudinal guide rails (14) relative to the bottom fixing frame (2), and the sliding frame (13) moves left and right in the transverse guide rails (9);
the rooting system comprises a flashboard (20) and a three-stage oil cylinder (23), and in the centering process of the rooting system (1) and the optical sleeve (19), the axes of the sleeve clamping device (16), the annular blowout preventer (15), the open-flow four-way blowout preventer (12) and the totally-enclosed flashboard blowout preventer (11) are always deviated from the axis of the optical sleeve (19) by a certain distance, so that the impact of high-pressure oil airflow on the device in the centering process of the rooting system (1) and the optical sleeve (19) is avoided, and the stability of movement in the centering process of the rooting system (1) and the optical sleeve (19) is facilitated;
the sleeve clamping device (16) is used for clamping the optical sleeve body, so that the blowout emergency device is in clamping connection with the optical sleeve under the condition of no sleeve head.
2. The cluster wellhead blowout emergency device for the offshore drilling platform according to claim 1, wherein the fixing frame supporting body (4) is of a telescopic folding structure.
3. The marine drilling platform cluster wellhead blowout emergency device according to claim 1, wherein the annular blowout preventer (15) encloses an annulus between the optical casing (19) and the annular blowout preventer.
4. A cluster wellhead blowout rescue method for an offshore drilling platform based on the rescue device as claimed in any one of claims 1 to 3, characterized in that the sleeve clamping device (16) comprises: the hydraulic well drilling platform comprises an outer guide cylinder (26), a lifting oil cylinder (27), an inner guide cylinder (28), a tray (29), locking slips (31), a connecting block (30) and a conical body (32), wherein if blowout accidents occur in the well drilling platform drilling and completion process, the emergency steps are as follows:
firstly, clearing a blowout preventer for wellhead faults and cutting damaged casing heads, then cutting a gap from a platform along the periphery of an optical casing (19), lifting the whole device to the wellhead, supporting a fixed frame support body (4) on the wellhead platform (3), enabling a bottom fixed frame (2) to be placed under the wellhead platform (3) through a platform hole, enabling the bottom fixed frame (2) to move back and forth in a fixed frame moving track (17) under the action of a fixed frame moving oil cylinder (5), realizing the centering of a rooting system (1) and the optical casing (19) in the front-back direction, enabling left and right flashboards (20) in the rooting system (1) to move different distances under the action of three-stage oil cylinders (23) on the left and right sides, realizing the centering of the rooting system (1) and the optical casing (19), and enabling the axes of the sleeve clamping device (16), the annular blowout preventer (15), the blowout four-way (12) and the full-seal flashboard (11) to deviate from the axis of the optical casing (19) by a certain distance all the time, so that the rooting system (1) and the optical casing (19) can be centered with high impact resistance in the centering process of the optical casing (19), and the rooting system (19) can be well avoided; after centering, the rooting system (1) uses the locking function to clamp the optical sleeve (19); the rooting system (1) clamps the optical sleeve (19), ensures stable movement of the sleeve clamping device (16), the annular blowout preventer (15), the open-flow four-way valve (12) and the flashboard blowout preventer (11) in the centering process with the optical sleeve (19), the sliding frame (13) moves back and forth in the longitudinal guide rail (14) under the action of the sliding frame back and forth movement oil cylinder (34), and the fixing frame (10) moves left and right in the transverse guide rail (9) under the action of the fixing frame transverse movement oil cylinder (33), so that the centering of the sleeve clamping device (16), the annular blowout preventer (15), the open-flow four-way valve (12), the totally-enclosed flashboard blowout preventer (11) and the optical sleeve (19) is realized; after centering, the two-layer frame body (6) moves downwards relative to the bottom fixing frame (2) under the action of the lifting oil cylinder (7), when the optical sleeve (19) passes through the sleeve clamping device (16) and enters the annular blowout preventer (15) for a certain distance, the downward movement is stopped, the lifting oil cylinder (27) in the sleeve clamping device (16) drives the tray (29) to move downwards, the locking slips (31) move downwards along the conical body (32) under the action of the connecting block (30), the optical sleeve (19) is clamped, the conical surface of the locking slips (31) has a locking function, the sleeve clamping device (16) clamps the optical sleeve body, the inner guide cylinder (28) descends along the outer guide cylinder (26) in the downward movement process of the tray (29) to play a guiding role, after the optical sleeve (19) is clamped by the sleeve clamping device (16), the annular blowout preventer (15) is in butt joint with an optical sleeve head, after the butt joint is finished, the annular blowout preventer (15) is loosened by the flashboard (20) in the rooting system (1), the annular blowout preventer (15) works, the annular blowout preventer (19) and the optical sleeve (19) is completely sealed, and the optical blowout preventer (11) is completely sealed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610468278.0A CN105971547B (en) | 2016-06-25 | 2016-06-25 | Device and method for emergency rescue of cluster wellhead blowout of offshore drilling platform |
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| CN201610468278.0A CN105971547B (en) | 2016-06-25 | 2016-06-25 | Device and method for emergency rescue of cluster wellhead blowout of offshore drilling platform |
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| CN105971547B true CN105971547B (en) | 2023-11-03 |
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| US10662729B2 (en) * | 2018-08-31 | 2020-05-26 | Hydril USA Distribution LLC | Sliding subsea electronics module chassis |
| CN109372461B (en) * | 2018-11-27 | 2021-01-01 | 中国石油集团川庆钻探工程有限公司 | Method for resetting wellhead device out of control of blowout |
| CN110219608B (en) * | 2019-07-22 | 2023-12-12 | 广州海洋地质调查局 | Deep sea well drilling blowout preventer guider |
| CN113027373B (en) * | 2021-05-28 | 2021-07-27 | 胜利油田海胜石油机械制造有限公司 | Integral wellhead assembly |
| CN114961563B (en) * | 2022-06-10 | 2023-03-24 | 中国石油大学(华东) | Deepwater seabed coiled pipe drilling machine |
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