CN102409992A - Integrated tubing hanger for underwater horizontal christmas tree - Google Patents
Integrated tubing hanger for underwater horizontal christmas tree Download PDFInfo
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- CN102409992A CN102409992A CN2011103168759A CN201110316875A CN102409992A CN 102409992 A CN102409992 A CN 102409992A CN 2011103168759 A CN2011103168759 A CN 2011103168759A CN 201110316875 A CN201110316875 A CN 201110316875A CN 102409992 A CN102409992 A CN 102409992A
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Abstract
The invention relates to an integrated tubing hanger for an underwater horizontal christmas tree. A hanger body base is placed in a drift diameter of the underwater horizontal christmas tree. The lower section of the drift diameter of the tubing hanger is communicated with an oil tube short section. Two top stoppers are longitudinally arranged at the upper section of the drift diameter of the tubing hanger. A production flow channel B, a plurality of through channels A and pressure relief channels A are arranged in the drift diameter of the hanger. A double-locking device is arranged at the upper part of a hanger body. A spiral guide structure is arranged at the bottom of the hanger body. According to the integrated tubing hanger disclosed by the invention, as the oil gas production and annular passages, a multiple-sealing structure, the electronic control/hydraulic through and pressure relief channels, the double-locking device and the spiral guide structure are arranged, the convenient operations of tripping-in and recycling are realized. The integrated tubing hanger has compactness in overall structure and reliability in property; and the operation time and the labor intensity are effectively reduced.
Description
Technical field
The invention belongs to offshore oil, natural gas drilling and extracting equipment technical field, relate to a kind of underwater horizontal type production tree and use the monolithic boll-weevil hanger.
Background technology
Subsea production tree is mainly used in exploration, the exploitation of deep-sea oil gas, belongs to the crucial equipment of producing.Subsea production tree is made up of many valves, bend pipe and joint, is used for preventing that oil gas from flowing into external environment condition from oil well, and it provides guiding and the control of fluid in oil well, can also be filled into gas, water etc. in the lower well of oil production.
According to the arrangement form (level or vertical) of valve, subsea production tree is divided into horizontal and vertical two kinds.
Subsea production tree mainly is used for hanging oil pipe weight with boll-weevil hanger; The passage of production of hydrocarbons and annular space is provided; For automatically controlled, hydraulic pressure and chemical agent inject interface and passage are provided, the inner latus rectum of sealing production tree, and bear the lifting pulling force of borehole pressure and certain limit.The boll-weevil hanger seat of underwater vertical production tree is placed in the well head head, and the boll-weevil hanger seat of underwater horizontal type production tree is placed in the production tree body latus rectum.
At present; The boll-weevil hanger that the underwater horizontal type production tree is adopted is the separate type with inner tree cap mostly; This structure is owing to need two cover locking devices, and structure is comparatively complicated, and hanger and internal tree cap need be lowered to respectively and reclaim; Increased activity duration and labour intensity, operating cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of underwater horizontal type production tree and use the monolithic boll-weevil hanger, solved existing separate type boll-weevil hanger complex structure, be lowered to and reclaim consuming time, effort, problem that operating cost is high.
The technical scheme that the present invention adopted is; A kind of underwater horizontal type production tree is used the monolithic boll-weevil hanger; The hanger noumenal seat is placed in the underwater horizontal type production tree latus rectum; Have the boll-weevil hanger latus rectum in the hanger body vertically, boll-weevil hanger latus rectum hypomere communicates with tubing nipple downwards, and boll-weevil hanger latus rectum epimere is vertically arranged with crown plug A and crown plug B;
The boll-weevil hanger latus rectum connects through producing runner B and the intrinsic production runner of production tree A, produces among the runner A and is provided with the production main valve;
Be provided with many penetrating via A in the hanger body vertically; Each penetrating via A upper end is connected with penetrating via B in the production tree body through seal nipple B; Penetrating via A lower end through automatically controlled/hydraulic joint B with run through pipeline B and be connected, run through pipeline B through automatically controlled/hydraulic joint A with run through pipeline A and be connected;
Radially have pressure release passage A in the hanger body, pressure release passage A is between crown plug A and crown plug B, and pressure release passage A is connected with pressure release passage B in the production tree body through seal nipple A;
Hanger body top is provided with dual locking device;
Hanger body bottom is provided with the spirally-guided structure.
The invention has the beneficial effects as follows, can hang oil pipe weight, the passage of production of hydrocarbons and annular space is provided; Multi-sealing structure control effectively to borehole fluid and pressure; Automatically controlled/hydraulic pressure runs through the injection of test, control and the chemical agent that can realize underground equipment; Pressure release passage can solve because of blanking plug and be lowered to or reclaim the imbalance of pressure problem that causes separately; Dual locking device can be locked in hanger on the production tree, and has auto-lock function, prevents the locking inefficacy; The spirally-guided structure can realize accurate the butt joint and the location of various terminal, passage etc. between hanger and the production tree body; Hanger compact overall structure, dependable performance conveniently are lowered to and reclaim, and have effectively reduced activity duration and labour intensity.
Description of drawings
Fig. 1 is installed in the whole sectional view on the underwater horizontal type production tree for apparatus of the present invention;
Fig. 2 be in apparatus of the present invention dual locking device at the partial sectional view of released state;
Fig. 3 be in apparatus of the present invention dual locking device at the partial sectional view of locking state.
Among the figure, 1. production tree body, 2. production tree latus rectum, 3. boll-weevil hanger latus rectum, 4. crown plug A, 5. hanger body, 6. pressure release passage A; 7. seal nipple A, 8. pressure release passage B, 9. sealing A, 10. crown plug B, 11. sealing B, 12. produce main valves, and 13. produce runner A; 14. produce runner B, 15. distance sleeves, 16. support pipe nipple, 17. guide pads, 18. tubing nipples, 19. sealing C, 20. baffle rings; 21. run through pipeline A, 22. automatically controlled/hydraulic joint A, 23. end plates, 24. run through pipeline B, 25. pilot sleeves, 26. automatically controlled/hydraulic joint B, 27. sealing D; 28. sealing E, 29. penetrating via A, 30. annulus access, 31. annular space main valves, 32. well workover valves, 33. workover passageway, 34. penetrating via B; 35. seal nipple B, 36. sealing F, 37. snap rings, 38. locking sleeves, 39. locking devices, 40. support inner core; 41. locking profile A, 42. locking profile B, 43. fixture blocks, 44. spring bases, 45. springs, 46. locking profile C.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is elaborated.
Like Fig. 1; Underwater horizontal type production tree of the present invention with the structure of monolithic boll-weevil hanger is; 5 of hanger bodies are placed in the underwater horizontal type production tree latus rectum 2, and production tree is installed on the underwater wellhead through hydraulic pressure (or machinery) wellhead connector and (does not indicate among the figure), has boll-weevil hanger latus rectum 3 in the hanger body 5 vertically; Boll-weevil hanger latus rectum 3 downward (bottom) communicates with tubing nipple 18; Boll-weevil hanger latus rectum 3 upwards (top) comprises two crown plug A4 and crown plug B10 that vertically are provided with, and two blanking plugs all can be lowered to separately and reclaim, and are convenient to operations such as well workover; Production runner A13 in production runner B14 in the boll-weevil hanger latus rectum 3 and the production tree body 1 connects; Produce to be provided with among the runner A13 and produce main valve 12; The fluid break-make is by producing main valve 12 controls, and producing the upper and lower both sides of runner B14 respectively has one group along the circumferential two combination sealing arrangements of hanger body 5---sealing B 11 with seal E 28; Comprise many penetrating via A29 vertically in the hanger body 5; Penetrating via A29 upper end is connected with penetrating via B 34 in the production tree body 1 through seal nipple B 35; Penetrating via A 29 other ends through automatically controlled/hydraulic joint B 26 with run through pipeline B 24 and be connected; Run through pipeline B 24 through be fixed on the end plate 23 automatically controlled/hydraulic joint A 22 with run through pipeline A 21 and be connected, run through pipeline A21 and extend to the shaft bottom with production tube; Have pressure release passage A6 in the hanger body 5; Pressure release passage A 6 is between crown plug A 4 and crown plug B 10; Pressure release passage A 6 is connected with pressure release passage B 8 in the production tree body 1 through seal nipple A 7, and seal nipple A 7 and seal nipple B 35 upper and lower both sides respectively have one group along hanger body 5 circumferential combination sealing arrangement---sealing F36 and sealing A 9; Hanger body 5 top overcoats are connected with and support inner core 40, in support inner core 40 outer cover locking sleeve 38 are housed, and are positioned at locking sleeve 38 bottom port excircles and are set with snap ring 37; 37 of snap rings are placed on the platform of hanger body 5; When locking sleeve 38 pressed down, snap ring 37 adjacent circumferential expansion snapped in production tree body 1 annular groove; Realize locking function, locking sleeve 38 is along circumferentially being provided with a plurality of locking devices 39; Hanger body 5 bottom excircles are socketed with and support pipe nipple 16; The lower end excircle that supports pipe nipple 16 is provided with guide pad 17, and production tree body 1 bottom is connected with distance sleeve 15, is fixed with pilot sleeve 25 on the shoulder of distance sleeve 15 inner chambers; Realize the guide-localization function; Be provided with sealing D 27 between distance sleeve 15 and the production tree body 1, distance sleeve 15 bottoms are circumferentially with sealing C 19, and distance sleeve 15 bottom port outers are provided with baffle ring 20;
Be provided with annulus access 30 and workover passageway 33 in the production tree body 1, be provided with annular space main valve 31 in the annulus access 30, be provided with well workover valve 32 in the workover passageway 33; Annulus access 30 1 ends lead to support pipe nipple 16 upper end circumferential outer surfaces, and workover passageway 33 1 ends lead to locking sleeve 38 upper end circumferential outer surfaces, and the other end of annulus access 30 and workover passageway 33 leads to outside the production tree body 1 simultaneously.
In several places hermetically-sealed construction of apparatus of the present invention, crown plug A4 and crown plug B 10 are in order to fluid or the pressure of control from production tube; Seal B 11 and the sealing that sealing E 28 had both guaranteed to produce runner B 14 inner fluids and pressure, also become the preceding twice barrier of annular pressure in the well; Sealing A 9 and sealing F 36 can prevent that seal nipple A7, seal nipple B 35 from leaking, and also forms sealing to annular pressure in the well simultaneously; Sealing C 19 and sealing D 27 keep apart annular pressure in the well or fluid and space outerpace.
Crown plug A4 and crown plug B10 are respectively or all sealing pressure control devices such as wire rope plug or control valve.Sealing A9, sealing B11, sealing C19, sealing D27, sealing E28 and sealing F36 are respectively or all metallic seal, nonmetal sealing or combination sealing.
Apparatus of the present invention set inside have a plurality of automatically controlled/hydraulic pressure penetrator and passage; Shown in Figure 1; Fig. 1 only draws a hydraulic pressure and runs through, run through comprise penetrating via B 34, seal nipple B 35, penetrating via A29, automatically controlled/hydraulic joint B 26, run through pipeline B 24, automatically controlled/hydraulic joint A22 and run through pipeline A21.Seal nipple B 35 in the hanger seat is put into production tree latus rectum 2 before; Have self-sealing function, sealing penetrating via A29, the hanger seat is put into after the production tree latus rectum 2; Under oil pipe and hanger action of gravity; The self-sealing valve piece is opened, and penetrating via B 34 is communicated with penetrating via A 29, and seal nipple B 35 realizes the circumferential seal of two penetrating via contact surfaces.If hydraulic pressure runs through, the medium in the penetrating via is hydraulic oil or chemical agent, and automatically controlled/hydraulic joint is hydraulic connectors, runs through pipeline A 21 and extends to the shaft bottom with oil pipe, is connected with devices such as storm valve or packers; If automatically controlled running through is laid with cable or optical fiber in the penetrating via, seal nipple B 35 and automatically controlled/hydraulic joint are electrical fitting, and cable or optical fiber and down-hole electric submersible pump or various sensor, electric control gear are connected.
Pressure release passage A 6 one ends are connected with hanger latus rectum space between crown plug A 4, the crown plug B 10; The other end is connected with pressure release passage B 8 through seal nipple A 7, and the break-make of pressure release passage inner fluid (or pressure) is by the valve on the production tree (not indicating among the figure) control.
With reference to Fig. 2, Fig. 3, dual locking device mainly is made up of snap ring 37, locking sleeve 38, locking device 39, support inner core 40.This dual locking erection seat is placed on the hanger body 5, and is positioned among the production tree latus rectum 2.Snap ring 37 is " C " type slotted collar, places on the platform of hanger body 5, is provided with the locking profile A41 that cooperates with snap ring 37 in the production tree latus rectum 2; Locking sleeve 38 is positioned at snap ring 37 tops, and supported by snap ring 37, and locking sleeve 38 middle parts are along being circumferentially with a plurality of locking devices 39; Supporting inner core 40 is included in the locking sleeve 38; Be connected on the hanger body 5 through screw thread (or bolt); Locking device 39 is made up of fixture block 43, spring base 44, spring 45 etc.; Support the corresponding locking device 39 of inner core 40 outer walls and be provided with a plurality of locking profile B 42, be provided with locking profile C 46 along the surface in locking sleeve 38 top port, be used for and be lowered to or recovery instrument (figure does not show) is connected.
In the dual locking device, support inner core 40 and the connected mode of 5 of hanger bodies and be that screw buckle is connected or bolt is affixed.
Because production tree body 1 is not to be lowered to simultaneously with boll-weevil hanger, and comprises multiple passage and interface between the two, therefore; When hanger is lowered into production tree latus rectum 2; Need a cover guide locating device provided, make hanger rotate to assigned address, guarantee effective butt joint of various passages and interface.Of the present invention guide locating device providedly mainly comprise: support pipe nipple 16 and be connected to hanger body 5 bottoms through bolt; Support pipe nipple 16 lower ends and have guide pad 17, distance sleeve 15 is connected to production tree body 1 bottom, and barrel bore has shoulder; 25 of pilot sleeves are placed on the shoulder; Pilot sleeve 25 upper guide are the helix pattern of symmetry to profile, and profile bottom has vertical gathering sill, and distance sleeve 15 inner chambers and pilot sleeve 25 outer walls are through key or be threaded.
In the spirally-guided structure, distance sleeve 15 is that key connects or threaded fastener connects or both are an integral body with being connected of pilot sleeve 25.In the spirally-guided structure, guide pad 17 is an integral body with supporting pipe nipple 16, or guide pad independently, is connected to through bolt and supports on the pipe nipple 16.The spirally-guided structure also can be set to pilot sleeve 25 and be connected with hanger body 5, and guide pad 17 is placed in the production tree body 1.
With reference to Fig. 2, Fig. 3; The operating principle of apparatus of the present invention is: before boll-weevil hanger is lowered to; Production tree body 1 has been lowered to the seabed; And be connected to that high-pressure well is oral and go up (indicating among the figure) through hydraulic pressure (or machinery) connector, production tube and run through pipeline and descend in the entry, and its top has been connected on the hanger body 5.Boll-weevil hanger is lowered to instrument (not indicating among the figure) jointed rod, and the fixture block that is lowered on the instrument snaps in the locking profile C 46, and keeps locking, utilizes drilling rod that hanger integral body is transferred in the production tree latus rectum 2.5 of hanger bodies be put on the production tree body 1 and locking before; Support on the pipe nipple 16 guide pad 17 at first with pilot sleeve 25 on helical type guiding profile contact; Receive oil pipe and hanger weight; Guide pad 17 glides along the rotation of guiding profiles, and finally is slipped in the vertical gathering sill of bottom, realizes aliging and being connected of various passages and interface between hanger body 5 and the production tree body 1.Dual locking unit state is as shown in Figure 2, and locking sleeve 38 is squeezed snap ring 37 owing to receive the pulling force that the instrument of being lowered to makes progress, and deformation takes place, and snap ring 37 in the raw.The locking device at locking sleeve 38 middle parts is in pressured state 39 this moments, and the fixture block 43 in the device receives the extruding of supporting inner core 40 outer walls, is limited in the barrel of locking sleeve 38, and the spring 45 in the fixture block 43 is compressed;
After 5 of hanger bodies were put on the production tree body 1, sealing A 9, sealing B 11, sealing E 28 and sealing F 36 were squeezed, and form the multiple-sealed barrier between production tree latus rectum 2 and the hanger body 5; Step on seal nipple A7 and seal nipple B 35 and the production tree latus rectum 2 comes in contact; Inner self-sealing valve piece is opened; Pressure release passage A 6 is communicated with pressure release passage B 8; Penetrating via B 34 is communicated with penetrating via A 29, and seal nipple A 7 and seal nipple B 35 realize the circumferential seal of two pressure release passage contact surfaces and two penetrating via contact surfaces respectively; Production runner B 14 aligns with production runner A 13 and connects, and has set up the passage of oil gas output; Dual locking unit state is as shown in Figure 3, along be lowered to instrument continue transfer, oil pipe and hanger weight are transferred on the production tree body 1; Locking sleeve 38 move down, and the bottom is inserted in the space between snap ring 37 and the hanger body 5 under the downward thrust of the instrument that is lowered to; Snap ring 37 is squeezed; Radially deformation takes place, and finally snap onto among the locking profile A 41, hanger is locked on the production tree body 1.At this moment; Locking device 39 moves down with locking sleeve 38; And align with locking profile B 42 on supporting inner core 40 outer walls, the elastic force that the fixture block 43 in the device receives spring 45 outwards ejects, and snaps onto in the locking profile B 42; Prevent that locking sleeve 38 from because of reason generation releases such as external force or vibrations, having guaranteed the reliability of locking device.At last, the instrument that will be lowered to reclaims, and accomplishes the operation that is lowered to of boll-weevil hanger.
When accomplishing oil recovery or carrying out other operation of down-hole, need the recovered oil pipe hanger.During recovery, the fixture block that is lowered on the instrument snaps in the locking profile C 46 once more, and keeps locking, will be lowered on the instrument and carry; Locking sleeve 38 moves up thereupon, and the fixture block 43 in the locking device 39 receives the extruding of supporting inner core 40 outer walls, and spring 45 is compressed; Fixture block 43 is limited in the barrel of locking sleeve 38 again, and locking device 39 is opened, and puts in the continuation into instrument; Locking sleeve 38 is put to position shown in Figure 2, snap ring 37 under self elastic reaction, state before radial contraction to the locking; Hanger body 5 and 1 release of production tree body, on put into instrument, boll-weevil hanger is recycled to platform surface.
Being lowered to and reclaiming of crown plug A 4 and crown plug B 10 can be carried out with hanger body 5 or completion separately simultaneously.After crown plug B 10 installations, be lowered to crown plug A4, transferring to the target location; Hermetically-sealed construction on the crown plug A4 will be had an effect, along with blanking plug continue transfer, liquid is extruded in the hanger latus rectum space between two blanking plugs; Pressure increases, and can stop the descending of crown plug A 4, causes it can't arrive target location and locking; At this moment; Operate the valve open on the pressure release passage through hydraulic control or ROV, extruded fluid is discharged by pressure release passage, crown plug A 4 just can be in place smoothly.In the removal process of crown plug A 4, pressure release passage can play a role equally.
The present invention can be applicable to deep-sea oil producing operation under water, and this boll-weevil hanger mainly is made up of parts such as hanger body, multi-sealed, automatically controlled/hydraulic pressure penetrator and passage, pressure release passage and joint, dual locking device, guide-localization structures.Compare with the boll-weevil hanger of separate type, hanger compact conformation of the present invention, dependable performance, integral design conveniently is lowered to and reclaims, and has effectively reduced activity duration and labour intensity, practices thrift cost, satisfies the exploration and development requirement of offshore oil.
Claims (5)
1. a underwater horizontal type production tree is used the monolithic boll-weevil hanger, it is characterized in that:
Hanger body (5) seat is placed in the underwater horizontal type production tree latus rectum (2); Have boll-weevil hanger latus rectum (3) in the hanger body (5) vertically; Boll-weevil hanger latus rectum (3) hypomere communicates with tubing nipple (18) downwards, and boll-weevil hanger latus rectum (3) epimere is vertically arranged with crown plug A (4) and crown plug B (10);
Boll-weevil hanger latus rectum (3) connects with the interior production runner A (13) of production tree body (1) through producing runner B (14), produces to be provided with among the runner A (13) and produces main valve (12);
Be provided with many penetrating via A (29) in the hanger body (5) vertically; Each penetrating via A (29) upper end is connected with penetrating via B (34) in the production tree body (1) through seal nipple B (35); Penetrating via A (29) lower end through automatically controlled/hydraulic joint B (26) with run through pipeline B (24) and be connected, run through pipeline B (24) through automatically controlled/hydraulic joint A (22) with run through pipeline A (21) and be connected;
Radially have pressure release passage A (6) in the hanger body (5), pressure release passage A (6) is positioned between crown plug A (4) and the crown plug B (10), and pressure release passage A (6) is connected with pressure release passage B (8) in the production tree body (1) through seal nipple A (7);
Hanger body (5) top is provided with dual locking device;
Hanger body (5) bottom is provided with the spirally-guided structure.
2. underwater horizontal type production tree according to claim 1 is used the monolithic boll-weevil hanger; It is characterized in that: also be included in and be provided with annulus access (30) and workover passageway (33) in the production tree body (1); Be provided with annular space main valve (31) in the annulus access (30), be provided with well workover valve (32) in the workover passageway (33); Annulus access (30) one ends lead to support pipe nipple (16) upper end circumferential outer surface, and workover passageway (33) one ends lead to locking sleeve (38) upper end circumferential outer surface, and the other end of annulus access (30) and workover passageway (33) leads to outside the production tree body (1) simultaneously.
3. underwater horizontal type production tree according to claim 1 is used the monolithic boll-weevil hanger, it is characterized in that: the upper and lower both sides of described production runner B (14) respectively have one group along hanger body (5) circumferential sealing B (11) and sealing E (28);
Seal nipple A (7) and the upper and lower both sides of seal nipple B (35) respectively have one group along hanger body (5) circumferential sealing F (36) and sealing A (9).
4. underwater horizontal type production tree according to claim 1 is used the monolithic boll-weevil hanger; It is characterized in that: described dual locking device structure is; Hanger body (5) top overcoat is connected with and supports inner core (40), in support inner core (40) outer cover locking sleeve (38) is housed, and is positioned at locking sleeve (38) bottom port excircle and is set with snap ring (37); Snap ring (37) seat is placed on the platform of hanger body (5); Locking sleeve (38) supports the corresponding locking device of inner core (40) outer wall (39) and is provided with a plurality of locking profile B (42) along circumferentially being provided with a plurality of locking devices (39), the interior locking profile C (46) that is provided with along the surface of locking sleeve (38) top port.
5. underwater horizontal type production tree according to claim 1 is used the monolithic boll-weevil hanger; It is characterized in that: described spirally-guided structure is; Hanger body (5) bottom excircle is socketed with and supports pipe nipple (16), and the lower end excircle that supports pipe nipple (16) is provided with guide pad (17), and production tree body (1) bottom is connected with distance sleeve (15); Be fixed with pilot sleeve (25) on the shoulder of distance sleeve (15) inner chamber; Be provided with sealing D (27) between distance sleeve (15) and the production tree body (1), distance sleeve (15) bottom is circumferentially with sealing C (19), and (15 bottom port outers are provided with baffle ring (20) to distance sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103168759A CN102409992A (en) | 2011-10-19 | 2011-10-19 | Integrated tubing hanger for underwater horizontal christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103168759A CN102409992A (en) | 2011-10-19 | 2011-10-19 | Integrated tubing hanger for underwater horizontal christmas tree |
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| Publication Number | Publication Date |
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| CN102409992A true CN102409992A (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103168759A Pending CN102409992A (en) | 2011-10-19 | 2011-10-19 | Integrated tubing hanger for underwater horizontal christmas tree |
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| CN (1) | CN102409992A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382830A (en) * | 2012-05-01 | 2013-11-06 | 韦特柯格雷英国有限公司 | Plug installation system and method |
| CN109899015A (en) * | 2019-02-28 | 2019-06-18 | 宝鸡石油机械有限责任公司 | It is integrated with the underwater oil pipe hanger of built-in slide valve and driving structure |
| CN112377140A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Anti-wear core for subsea tree |
| CN112377142A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Body annular work conversion channel of underwater Christmas tree |
| CN112377141A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Spare locking device for oil pipe hanger of underwater Christmas tree |
| CN113756737A (en) * | 2021-09-22 | 2021-12-07 | 中海石油(中国)有限公司 | Oil pipe hanger device for shallow water underwater Christmas tree |
| CN114370246A (en) * | 2021-12-14 | 2022-04-19 | 中国海洋石油集团有限公司 | Auxiliary release mechanism for underwater tubing hanger and operation method |
| CN114901918A (en) * | 2019-10-16 | 2022-08-12 | 普莱克薛斯海洋系统有限公司 | Top blanking plug retention system |
| CN117514061A (en) * | 2024-01-03 | 2024-02-06 | 威飞海洋装备制造有限公司 | Casing hanger device with sitting and putting in place indication function |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382830A (en) * | 2012-05-01 | 2013-11-06 | 韦特柯格雷英国有限公司 | Plug installation system and method |
| CN109899015A (en) * | 2019-02-28 | 2019-06-18 | 宝鸡石油机械有限责任公司 | It is integrated with the underwater oil pipe hanger of built-in slide valve and driving structure |
| CN109899015B (en) * | 2019-02-28 | 2021-06-15 | 宝鸡石油机械有限责任公司 | Underwater oil pipe hanger integrated with built-in gate valve and driving structure |
| CN114901918A (en) * | 2019-10-16 | 2022-08-12 | 普莱克薛斯海洋系统有限公司 | Top blanking plug retention system |
| CN112377140A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Anti-wear core for subsea tree |
| CN112377142A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Body annular work conversion channel of underwater Christmas tree |
| CN112377141A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Spare locking device for oil pipe hanger of underwater Christmas tree |
| CN113756737A (en) * | 2021-09-22 | 2021-12-07 | 中海石油(中国)有限公司 | Oil pipe hanger device for shallow water underwater Christmas tree |
| CN113756737B (en) * | 2021-09-22 | 2023-08-22 | 中海石油(中国)有限公司 | Oil pipe hanger device for shallow water underwater Christmas tree |
| CN114370246A (en) * | 2021-12-14 | 2022-04-19 | 中国海洋石油集团有限公司 | Auxiliary release mechanism for underwater tubing hanger and operation method |
| CN114370246B (en) * | 2021-12-14 | 2023-09-01 | 中国海洋石油集团有限公司 | Auxiliary unhooking mechanism of underwater tubing hanger and operation method |
| CN117514061A (en) * | 2024-01-03 | 2024-02-06 | 威飞海洋装备制造有限公司 | Casing hanger device with sitting and putting in place indication function |
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Inventor after: Sun Chuanxuan Inventor after: Liu Wenxiao Inventor after: Jin Liandeng Inventor after: Zhang Fenggong Inventor after: Wang Jinquan Inventor before: Sun Chuanxuan Inventor before: Liu Wenxiao Inventor before: Jin Liandeng Inventor before: Zhang Fenggong |
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Free format text: CORRECT: INVENTOR; FROM: SUN CHUANXUAN LIU WENXIAO JIN LIANDENG ZHANG FENGGONG TO: SUN CHUANXUAN LIU WENXIAO JIN LIANDENG ZHANG FENGGONG WANG JINQUAN |
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Application publication date: 20120411 |