CN104563967A - Recyclable guide base for offshore deep water floating drilling - Google Patents
Recyclable guide base for offshore deep water floating drilling Download PDFInfo
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- CN104563967A CN104563967A CN201310483025.7A CN201310483025A CN104563967A CN 104563967 A CN104563967 A CN 104563967A CN 201310483025 A CN201310483025 A CN 201310483025A CN 104563967 A CN104563967 A CN 104563967A
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- claw
- hole
- sleeve
- guide pillar
- gripper shoe
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/08—Underwater guide bases, e.g. drilling templates; Levelling thereof
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Revetment (AREA)
Abstract
The invention discloses a recyclable guide base for offshore deep water floating drilling, and is applied to the technical field of deep water drilling of petroleum. Support plates are welded to the outer wall of a base, and the lower end of a sleeve barrel sleeves the upper end of the base; four frame bodies are welded to the outer wall of the sleeve barrel, a guide pillar sleeve barrel is vertically welded to the other end of each frame body, a cylindrical guide pillar is arranged in each guide pillar sleeve barrel, and a supporting bolt of the guide pillar sleeve barrel is arranged at the lower end part of each guide pillar sleeve barrel; and slurry circulating holes are formed in the outer wall of the sleeve barrel, a mounting through hole for a recycling and disengaging mechanism is formed by a through hole of each frame body and a hole of each support plate, and the recycling and disengaging mechanism is arranged in the mounting through hole for the recycling and disengaging mechanism. The recyclable guide base has the effects that the sleeve barrel, the frame bodies, the guide pillars and the base are firmly combined together by the recycling and disengaging mechanism generally; and when the guide base is recycled, after the recycling and disengaging mechanism is unlocked, the sleeve barrel, the frame bodies and the guide pillars can be separated from the base, so that the total recycling of the guide base is conveniently realized.
Description
Technical field
The present invention relates to offshore oil deep water drilling and production technology field.Being exactly specifically a kind of recoverable guide base device being suitable for ocean deepwater floating type well drilling and using, entering to install under entering well and underwater wellhead and casing hanger underwater units for guiding drilling tool when ocean deepwater drilling.
Background technology
Along with offshore oil exploration and exploitation is constantly to deep-water developments, traditional platform completion mode is adopted to seem more and more uneconomical, not even reality, so create deep water floating type well drilling and underwater completion mode.Deep water floating type well drilling marine riser install before the installation of drilling tool underwater well head first-class underwater units when entering well and floating type well drilling all need guiding device, pithead position can be found smoothly.Namely guide base is to provide the device of this guiding function, and guiding device (guide base) is the visual plant of ocean deepwater floating type well drilling.Preferably complete after guiding is installed at it and want to reclaim easily.China Patent Publication No.: CN101718175A, provide one " universal joint device for ocean deepwater drilling ", comprise mounting plate and bottom plate, the one side of bottom plate and mounting plate. between some flexible members are installed, the another side of bottom plate is provided with load plate, and the two ends of flexible member are connected with upper holder and lower fixed frame, and upper holder is connected with mounting plate, lower fixed frame is connected with bottom plate, and all flexible members evenly arrange and form a circle; The structure of described flexible member is, in columniform synthetic rubber, be provided with some steel rings, is all fixed with supporting pin at columniform elastomeric two ends.This device, can realize compensating or balance marine riser transferring, in removal process due to wave waving and skew that ocean current etc. causes platform, to ensure the stationarity of marine riser string installing, in unloading process.
Summary of the invention
The object of the invention is: provide a kind of ocean deepwater floating type well drilling recyclable guide holder, realize guiding when ocean deepwater floating type well drilling drilling tool to enter the installation of well and underwater wellhead.
The technical solution used in the present invention is: the recyclable guide holder of ocean deepwater floating type well drilling, forms primarily of guide pillar, support body, suspension ring, truss, guide pillar sleeve, guide pillar sleeve lock pin, guide pillar sleeve carrying bolt, retaining ring, sleeve, gusset, base and base gripper shoe.The outer wall of columnar base is welded with the gripper shoe of annular, and be uniformly distributed between the bottom and base of gripper shoe and be welded with gusset, gusset, perpendicular to the lower plane of gripper shoe, the upper end inwall of base has taper seat shoulder; When entering after in sleeve under casing head, the lower end of casing head can be fixed on the ring-shaped step of base upper end inwall.Columnar sleeve lower end is enclosed within the upper end of base, and the lower surface of sleeve is in the upper plane of gripper shoe; Be fixed with a retaining ring at the top of sleeve, retaining ring can make casing head lock; The outer wall of cover letter is welded with four support bodys, and what support body adopted is I-shaped steelframe, and support body is radial to be evenly distributed on the outer wall of base, and the outer wall of one end vertical feet of support body and the lower surface of the lower plane of support body and sleeve are in same plane; Be welded with a truss between adjacent two support bodys, what truss adopted is I-shaped steelframe, and the effect of truss is the rigidity improving support body.Every root support body other end is vertically welded with a guide pillar sleeve, has a columnar guide pillar in each guide pillar sleeve, has a guide pillar sleeve carrying bolt, in order to supporting cell guide in the bottom of each guide pillar sleeve; There is a guide pillar sleeve lock pin at the middle part of each guide pillar sleeve, in order to lock guide pillar, make it can not extract out to column sleeve cylinder.The outer wall of sleeve has four groups of circulating openings, and four groups of circulating openings are respectively on the outer wall of sleeve and between adjacent two support bodys.
Each support body there is through hole respectively, porose on the supporting plate, relatively and diameter identical (joining brill), the through hole of support body and the hole composition of gripper shoe reclaim releasing mechanism and install through hole, reclaim releasing mechanism and install through hole perpendicular to plane on support body for the through hole of support body and the hole of gripper shoe; Install in through hole at recovery releasing mechanism and have recovery releasing mechanism.Reclaim after releasing mechanism unlocks and can make sleeve, support body is separated with base with guide pillar.
In order in removal process, base and gripper shoe also can reclaim simultaneously, and cut into symmetrical two parts after the gripper shoe welding of described columnar base and annular, base is divided into two semicircle cylinders, and gripper shoe is divided into two semi-circular shape; At upper plane-welding suspension ring of every root support body; Weld recovery chain suspension ring at the lower plane of every root support body, recovery chain suspension ring are connected with the first recovery chain; Porose on described gusset, be connected with the second recovery chain by the hole of gusset; First recovery chain and second reclaims chain and links together.
Described guide base reclaims releasing mechanism and forms by unlocking hanger, Jack catch nuts, claw, Compress Spring and plunger.Claw is cylindrical, and claw is installed in through hole at recovery releasing mechanism; Claw upper end outer wall has screw thread, and claw threaded upper ends is connected with Jack catch nuts, claw can not come off recovery releasing mechanism install through hole; Claw has stepped central hole, a T-shaped tubular plunger is had in claw centre bore, the upper end of plunger coordinates with the interaction of claw upper end center hole, centre bore is had in the upper end of plunger, centre bore and the unblock hanger lower end cylinder interference fit of its upper end, hanger upper end is segment, and unlocking hanger upper end has hanger hole, unlock the lower surface seat of hanger segment on Jack catch nuts upper surface, plunger can not landing automatically; Annular space is had between claw bottom Large central aperture and plunger outer wall, a Compress Spring is had in annular space between claw bottom Large central aperture and plunger outer wall, the lower end of Compress Spring is on the ring-shaped step of plunger, and the upper end of Compress Spring is on the annular shoulder in claw stepped central hole; Claw lower end wall has individual axially open, and claw lower end is divided into a point claw, and a point claw can inwardly shrink and diameter be diminished; Point claw lower end outer wall has outwardly convex shoulder, and the upper surface of point claw lower end outwardly convex shoulder is inclined-plane; There is taper seat the lower end, hole of described gripper shoe, and a point inclined-plane, upper end for claw lower end outwardly convex shoulder coordinates with lower end, the hole taper seat of gripper shoe.Be locked together by claw lower end outwardly convex shoulder and gripper shoe.
The gradient of the taper seat shoulder on described base upper end inwall is 45 °, taper seat shoulder, in order to support surface pipe head.Base inner wall is fixed with two convex keys, for coordinating with the locating slot on surface pipe head outer wall, completes the circumference location of surface pipe head.
The course of work of the recyclable guide holder of summary ocean deepwater floating type well drilling.Consult Fig. 2.Surface pipe head is arranged in sleeve 11, and surface pipe head is seated on the taper seat shoulder 21 of pedestal 16 upper end inwall, and locked by the retaining ring 10 being arranged on sleeve 11 upper end.Guide base is lowered on the mud line of seabed in company with first of surface pipe, and four guide pillar 1 tops respectively connect a strop simultaneously, and the installation entering well and well head head and casing hanger etc. for subsequent well provides guiding.After guide base is installed to seabed mud line, relies on and be connected to four strops on guide pillar 1 and guide entering instrument under follow-up.When needing to reclaim guide base, under enter Special back and put the tools away, unlock four on hangers 17 and carry, depart from claw 19, plunger 22 is deviate from and is fallen under the effect of Compress Spring 20 in claw 19.Claw 19 is carried with on recovery instrument together with guide base, and relative sliding occurs for outwardly convex shoulder 26 and the gripper shoe 23 of lower end, point claw 25 radial contraction, and claw 19 and gripper shoe 23 depart from.Guide base continues up, and sleeve 11 and pedestal 16 depart from.Be connected to first on truss 4 to reclaim chain 13 and be connected to second on gusset 14 and reclaim chain 15 and connect together, pedestal 16 reclaims with recovery instrument under the traction of the second recovery chain 15.
The invention has the beneficial effects as follows: the recyclable guide holder of ocean deepwater floating type well drilling, has recovery releasing mechanism, reclaim releasing mechanism at ordinary times and make sleeve 11, support body 2 and guide pillar 1 together with pedestal 16 strong bonded; When reclaiming guide base, reclaiming after releasing mechanism unlocks and can make sleeve 11, support body 2 is separated with base 16 with guide pillar 1, realizes the recycled in its entirety of guide base easily.
Accompanying drawing explanation
Fig. 1 is the recyclable guide seat structure schematic diagram of ocean deepwater floating type well drilling of the present invention.
Fig. 2 is that recoverable guide base structure partial of the present invention cuts open schematic diagram.
Fig. 3 is that guide base reclaims releasing mechanism A generalized section.
Fig. 4 is that claw 19 half cuts open schematic diagram.
Figure number illustrates: 1-guide pillar, 2-support body, 3-suspension ring, 4-truss, 5-guide pillar sleeve, 6-guide pillar sleeve lock pin, 7-guide pillar sleeve carrying bolt, 8-circulating opening, the convex key of 9-, 10-retaining ring, 11-sleeve, 12-reclaims chain suspension ring, and 13-first reclaims chain, 14-gusset, 15-second reclaims chain, 16-base, and 17-unlocks hanger, 18-Jack catch nuts, 19-claw, 20-Compress Spring, 21-taper seat shoulder, 22-plunger, 23-gripper shoe, 24-annular shoulder, 25-divides claw, 26-outwardly convex shoulder.
Detailed description of the invention
Embodiment 1: consult Fig. 2.The recyclable guide holder of ocean deepwater floating type well drilling of the present invention, the recyclable guide holder of ocean deepwater floating type well drilling, forms primarily of guide pillar 1, support body 2, suspension ring 3, truss 4, guide pillar sleeve 5, guide pillar sleeve lock pin 6, guide pillar sleeve carrying bolt 7, retaining ring 10, sleeve 11, gusset 14, base 16 and base gripper shoe 23.
The outer wall of columnar pedestal 16 is welded with one piece of annular gripper shoe 23, be uniformly distributed between the bottom of gripper shoe 23 and base 16 and be welded with gusset 14, gusset 14 is perpendicular to the lower plane of gripper shoe 23, and gradient on the upper end inwall of base 16 is the taper seat shoulder 21 of 45 °; When entering under casing head after in sleeve 11, the lower end of casing head can be fixed on the ring-shaped step of pedestal 16 upper end inwall.The internal diameter of pedestal 16 is 888mm, is highly 570mm.The thickness of gripper shoe 23 is 21mm, and external diameter is 1500mm.Cut into symmetrical two parts after gripper shoe 23 welding of columnar pedestal 16 and annular, pedestal 16 is divided into two semicircle cylinders, and gripper shoe 23 is divided into two semi-circular shape.Every block gusset 14 has a hole, is connected with the second recovery chain 15 by the hole of gusset 14.Pedestal 16 inwall is axially symmetrically fixed with two convex keys 9 of rectangle.Columnar sleeve 11 lower end is enclosed within the upper end of pedestal 16, and the lower surface of sleeve 11 is in the upper plane of gripper shoe 23; Be fixed with a retaining ring 10 at the top of sleeve 11, retaining ring 10 can make casing head lock; The outer wall of sleeve 11 is welded with four support bodys 2, and what support body 2 adopted is I-shaped steelframe, and the Plate Welding that I-shaped steelframe is 20mm by thickness becomes, cross section 350 height mm, width 200mm., the length 1206mm of support body 2 of I-shaped steelframe.On the radial outer wall being evenly distributed on pedestal 16 of support body 2, the outer wall of one end vertical base 16 of support body 2 and the lower surface of the lower plane of support body 2 and sleeve 11 are in same plane; Be welded with a truss 4 between adjacent two support bodys 2, what truss 4 adopted is I-shaped steelframe, and the Plate Welding that I-shaped steelframe is 20mm by thickness becomes, cross-sectional height 300mm, width 150mm., the length 1900mm of every root truss 4.The effect of truss 4 is the rigidity improving support body 2.Every root support body 2 other end is vertically welded with a guide pillar sleeve 5, has a columnar guide pillar 1 in each guide pillar sleeve 5, has a guide pillar sleeve carrying bolt 7, in order to supporting cell guide 1 in the bottom of each guide pillar sleeve 5; There is a guide pillar sleeve lock pin 6 at the middle part of each guide pillar sleeve 5, in order to lock guide pillar 1, make it can not extract out to column sleeve cylinder 5.The outer wall of sleeve 11 there is angle between four groups of 12 circulating openings, 8, two circulating openings 8 be 22.5 °.Four groups of circulating openings 8 are respectively on the outer wall of sleeve 11 and between adjacent two support bodys 2; The diameter of circulating opening 8 is 88mm.At upper plane-welding suspension ring 3 of every root support body 2; Weld recovery chain suspension ring 12 at the lower plane of every root support body 2, recovery chain suspension ring 12 are connected with the first recovery chain 13; First reclaims chain 13 and second time
Receive chain 15 to link together.
Each support body 2 has a through hole respectively, and the distance between the through hole center line of support body 2 and sleeve 11 center line is 640mm, and through-hole diameter is 140mm.Porose in gripper shoe 23, the through hole of support body 2 and the hole of gripper shoe 23 are relatively and diameter identical (joining brill), the through hole of support body 2 and the hole composition of gripper shoe 23 reclaim releasing mechanism and install through hole, reclaim releasing mechanism and install through hole perpendicular to plane on support body 2; Install in through hole at recovery releasing mechanism and have recovery releasing mechanism.
Described guide base reclaims releasing mechanism and forms by unlocking hanger 17, Jack catch nuts 18, claw 19, Compress Spring 20 and plunger 22.Claw 19 is cylindrical, and claw 19 diameter is 138mm.Claw 19 is installed in through hole at recovery releasing mechanism.Claw 19 upper end outer wall has screw thread, and claw 19 threaded upper ends is connected with Jack catch nuts 18, claw 19 can not come off recovery releasing mechanism install through hole.Claw 19 has stepped central hole, a T-shaped tubular plunger 22 is had in 19 claw centre bores, the upper end of plunger 22 coordinates with 19 claw upper end center hole interactions, centre bore is had in the upper end of plunger 22, centre bore and the unblock hanger 17 lower end cylinder interference fit of plunger 22 upper end, hanger upper end is segment, and unlocking hanger 17 upper end has hanger hole, unlock the lower surface seat of hanger 17 segment on Jack catch nuts 18 upper surface, plunger 22 can not landing automatically; Annular space is had between claw 19 bottom Large central aperture and plunger 22 outer wall, a Compress Spring 20 is had in annular space between claw 19 bottom Large central aperture and plunger 22 outer wall, the lower end of Compress Spring 20 is on the ring-shaped step of plunger 22, and the upper end of Compress Spring 20 is on the annular shoulder 24 in claw 19 stepped central hole; Claw 19 lower end wall has 20 axially opens, claw 19 lower end is divided into 20 points of claws 25, and a point claw 25 can inwardly shrink and diameter be diminished.Point claw 25 lower end outer wall has outwardly convex shoulder 26, and the upper surface of point claw 25 lower end outwardly convex shoulder 26 is 45 ° of inclined-planes.There are 45 ° of taper seats the lower end, hole of described gripper shoe 23, and a point inclined-plane, upper end for claw 25 lower end outwardly convex shoulder 26 coordinates with lower end, the hole taper seat of gripper shoe 23.Be locked together by claw 19 lower end outwardly convex shoulder 26 and gripper shoe 23.
Claims (3)
1. the recyclable guide holder of ocean deepwater floating type well drilling, forms primarily of guide pillar (1), support body (2), suspension ring (3), truss (4), guide pillar sleeve (5), guide pillar sleeve lock pin (6), guide pillar sleeve carrying bolt (7), retaining ring (10), sleeve (11), gusset (14), pedestal (16) and base gripper shoe (23); The outer wall of columnar pedestal (16) is welded with the gripper shoe (23) of annular, be uniformly distributed between the bottom of gripper shoe (23) and pedestal (16) and be welded with gusset (14), gusset (14), perpendicular to the lower plane of gripper shoe (23), the upper end inwall of pedestal (16) has taper seat shoulder (21); Columnar sleeve (11) lower end is enclosed within the upper end of pedestal (16), and the lower surface of sleeve (11) is in the upper plane of gripper shoe (23); A retaining ring (10) is fixed with at the top of sleeve (11); The outer wall of sleeve (11) is welded with four support bodys (2), what support body (2) adopted is I-shaped steelframe, on the radial outer wall being evenly distributed on pedestal (16) of support body (2), the outer wall of one end vertical feet (16) of support body (2) and the lower surface of the lower plane of support body (2) and sleeve (11) are in same plane; Be welded with a truss (4) between adjacent two support bodys (2), what truss (4) adopted is I-shaped steelframe; Every root support body (2) other end is vertically welded with a guide pillar sleeve (5), in each guide pillar sleeve (5), there is a columnar guide pillar (1), have a guide pillar sleeve carrying bolt (7) in the bottom of each guide pillar sleeve (5); A guide pillar sleeve lock pin (6) is had at the middle part of each guide pillar sleeve (5); The outer wall of sleeve (11) has four groups of circulating openings (8), and four groups of circulating openings (8) are respectively on the outer wall of sleeve (11) and between adjacent two support bodys (2); Each support body (2) there is through hole respectively, upper porose in gripper shoe (23), and the hole of gripper shoe (23) is relative and diameter is identical for the through hole of support body (2), the through hole of support body (2) and the hole composition of gripper shoe (23) reclaim releasing mechanism and install through hole, reclaim releasing mechanism and install through hole perpendicular to the upper plane of support body (2); Install in through hole at recovery releasing mechanism and have recovery releasing mechanism.
2. the recyclable guide holder of ocean deepwater floating type well drilling according to claim 1, it is characterized in that: after gripper shoe (23) welding of described pedestal (16) and annular, cut into symmetrical two parts, pedestal (16) is divided into two semicircle cylinders, and gripper shoe (23) is divided into two semi-circular shape; Upper plane-welding suspension ring (3) of every root support body (2); Weld a recovery chain suspension ring (12) at the lower plane of every root support body (2), reclaim chain (13) in the upper connection first of recovery chain suspension ring (12); Upper porose at described gusset (14), be connected with the second recovery chain (15) by the hole of gusset (14); First recovery chain (13) and second is reclaimed chain (15) and is linked together, and the gradient of the taper seat shoulder (21) on described pedestal (16) upper end inwall is 45 °; Pedestal (16) inwall is fixed with two convex keys (9).
3. the recyclable guide holder of ocean deepwater floating type well drilling according to claim 1, is characterized in that: described guide base reclaims releasing mechanism and forms by unlocking hanger (17), Jack catch nuts (18), claw (19), Compress Spring (20) and plunger (22); Claw (19) is cylindrical, and claw (19) is installed in through hole at recovery releasing mechanism; Claw (19) upper end outer wall has screw thread, and claw (19) threaded upper ends is connected with Jack catch nuts (18); Claw (19) has stepped central hole, a T-shaped tubular plunger (22) is had in (19) claw centre bore, the upper end of plunger (22) coordinates with the interaction of (19) claw upper end center hole, centre bore is had in the upper end of plunger (22), centre bore and unblock hanger (17) the lower end cylinder interference fit of plunger (22) upper end, hanger upper end is segment, unlock hanger (17) upper end and have hanger hole, unlock the lower surface seat of hanger (17) segment on Jack catch nuts (18) upper surface; Annular space is had between claw (19) bottom Large central aperture and plunger (22) outer wall, a Compress Spring (20) is had in annular space between claw (19) bottom Large central aperture and plunger (22) outer wall, the lower end of Compress Spring (20) is on the ring-shaped step of plunger (22), and the upper end of Compress Spring (20) is on the annular shoulder (24) in claw (19) stepped central hole; Claw (19) lower end wall has (20) individual axially open, claw (19) lower end is divided into 20 points of claws (25); Divide on claw (25) lower end outer wall and have outwardly convex shoulder (26), the upper surface of point claw (25) lower end outwardly convex shoulder (26) is inclined-plane; There is taper seat the lower end, hole of described gripper shoe (23), and a point inclined-plane, upper end for claw (25) lower end outwardly convex shoulder (26) coordinates with lower end, the hole taper seat of gripper shoe (23); Be locked together with gripper shoe (23) by the outwardly convex shoulder (26) of claw (19) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483025.7A CN104563967A (en) | 2013-10-16 | 2013-10-16 | Recyclable guide base for offshore deep water floating drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483025.7A CN104563967A (en) | 2013-10-16 | 2013-10-16 | Recyclable guide base for offshore deep water floating drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104563967A true CN104563967A (en) | 2015-04-29 |
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ID=53080952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310483025.7A Pending CN104563967A (en) | 2013-10-16 | 2013-10-16 | Recyclable guide base for offshore deep water floating drilling |
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| Country | Link |
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| CN (1) | CN104563967A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672949A (en) * | 2016-03-23 | 2016-06-15 | 中国海洋石油总公司 | Underwater drilling template applied to TLP (Tension Leg Platform) |
| GB2541005A (en) * | 2015-08-05 | 2017-02-08 | Aquaterra Energy Ltd | Well abandonment frame, cartridge and method of carrying out abandonment operations |
| CN111456688A (en) * | 2020-04-08 | 2020-07-28 | 中国石油大学(华东) | Multi-anchor-pipe self-adaptive wellhead supporting platform suitable for marine hydrate exploitation |
| CN114991718A (en) * | 2022-06-17 | 2022-09-02 | 中海石油(中国)有限公司 | Routing module operating system for seabed oil and gas operation |
-
2013
- 2013-10-16 CN CN201310483025.7A patent/CN104563967A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2541005A (en) * | 2015-08-05 | 2017-02-08 | Aquaterra Energy Ltd | Well abandonment frame, cartridge and method of carrying out abandonment operations |
| GB2541005B (en) * | 2015-08-05 | 2019-12-18 | Aquaterra Energy Ltd | Well abandonment frame, cartridge and method of carrying out abandonment operations |
| CN105672949A (en) * | 2016-03-23 | 2016-06-15 | 中国海洋石油总公司 | Underwater drilling template applied to TLP (Tension Leg Platform) |
| CN111456688A (en) * | 2020-04-08 | 2020-07-28 | 中国石油大学(华东) | Multi-anchor-pipe self-adaptive wellhead supporting platform suitable for marine hydrate exploitation |
| CN111456688B (en) * | 2020-04-08 | 2021-11-09 | 中国石油大学(华东) | Multi-anchor-pipe self-adaptive wellhead supporting platform suitable for marine hydrate exploitation |
| CN114991718A (en) * | 2022-06-17 | 2022-09-02 | 中海石油(中国)有限公司 | Routing module operating system for seabed oil and gas operation |
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Application publication date: 20150429 |