CN102383758A - Guide base wellhead locking device of underwater Christmas tree - Google Patents
Guide base wellhead locking device of underwater Christmas tree Download PDFInfo
- Publication number
- CN102383758A CN102383758A CN2011103734624A CN201110373462A CN102383758A CN 102383758 A CN102383758 A CN 102383758A CN 2011103734624 A CN2011103734624 A CN 2011103734624A CN 201110373462 A CN201110373462 A CN 201110373462A CN 102383758 A CN102383758 A CN 102383758A
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- well head
- guide base
- hole
- production tree
- gland
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The invention relates to a guide base wellhead locking device of an underwater Christmas tree in the field of offshore petroleum exploration and exploitation. The guide base wellhead locking device comprises a guide base and a wellhead end, wherein the guide base comprises a base cylinder sleeved on the wellhead end; a bent guide slot is arranged on the wall of an inner hole of the base cylinder from an upper end edge to a lower hole shoulder; a pressing sleeve is arranged in the inner hole of the base cylinder; a guide cam is arranged at the periphery below the pressing sleeve and matched with the bent guide slot; a controllable radial licking pin device is arranged at one side of the base cylinder; a locking pin of the controllable radial licking pin device is matched with a radial locating pinhole arranged at the periphery of the pressing sleeve; and a locking hole is arranged at the lower end of the pressing sleeve and matched with an elastic locking ring arranged at the periphery of the wellhead end. The invention has the beneficial effects of simple structure, reasonable arrangement, capability of realizing the locking of the guide base and the wellhead of the underwater Christmas tree and being repeatedly used, reliable locking performance, convenience in assembly and disassembly and simplicity and convenience in use and operation.
Description
Technical field
The present invention relates to a kind of subsea production tree guide base well head locking device that is used for exploratory engineering of off-shore petroleum/gas reservoir exploitation field.
Background technology
Subsea production tree is as one of important underwater kit of exploratory engineering of off-shore petroleum/gas reservoir development equipment, and its duty has determined the state of whole subsea production system operation, so the subsea production tree development has very important meaning.Subsea production tree has the branch of vertical production tree and horizontal production tree, and its complex structure is made up of many component; Comprise the production tree guide base, production tree body, tree cap; Boll-weevil hanger, production tree connector, main valve; Parts such as flutter valve and pipeline, one of wherein the most key parts are exactly production tree guide base well head locking device.Existing production tree guide base well head locking device structure is complicated, uses operation also easy inadequately.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of simple in structure, production tree guide base well head locking device that functional performance is reliable, easy and simple to handle.
The present invention for the technical scheme that problem adopted of the above-mentioned proposition of solution is: include guide base and well head termination; Described guide base comprises the seat tube that is sleeved on the well head termination, and the endoporus hole wall of seat tube is takeed on the guide groove that offers bending from edge, upper end to bottom hole, seat tube endoporus configuration gland; The below periphery of gland is installed on guiding projection; Guiding projection and bending guide groove phase configuration, a side of present tube is installed on the controllable radial latch gear, the radial location pin-and-hole phase configuration that the lock pin of controllable radial latch gear and gland periphery are offered; Lower end at gland is provided with locking hole, locking hole with the mutually trivial elasticity lock ring phase configuration of closing of well head termination periphery.
Press such scheme, the bending guide groove that the endoporus hole wall of described seat tube is provided with is perpendicular-horizontal-perpendicular bending guide groove.
Press such scheme, the vertical guide groove height of described bending guide groove bottom is more than or equal to the height of elasticity lock ring.
Press such scheme, be drilled with the axial location pin-and-hole between the stop edge of the barrel of present tube and gland upper end, set shop bolt in the axial location pin-and-hole.
Press such scheme, described elasticity lock ring is the C shape elasticity lock ring of a side otch.
Press such scheme, the locking hole aperture of described gland lower end is provided with the importing taper hole, and relative set imports the conical surface in the upper end of C shape elasticity lock ring.
Press such scheme, described controllable radial latch gear comprises the Connection Block that links with the seat tube, with the lock pin tube that Connection Block links, is installed on lock pin in the lock pin tube and disposes spring, and the lock pin front end stretches into seat tube endoporus, and the lock pin rear end joins with the control steel wire.
Press such scheme, the endoporus hole wall of described C shape elasticity lock ring is provided with the damping ring grain, and well head termination periphery is the backstop ring grain that is meshed with the damping ring grain of corresponding configuration also.
Press such scheme, the below of described C shape elasticity lock ring disposes packing ring.
Locking process when the present invention uses is: divide prepackage waterborne and be pressed into two steps under water; Prepackage process waterborne: earlier packing ring and elasticity lock ring are put into seat tube endoporus bottom; Next gland is got into seat tube endoporus; The guiding projection of gland its periphery when getting into seat tube endoporus aligns with a guide groove of tube endoporus earlier, is displaced downwardly to the guide groove bending place along the laterally vertical top of guide slot of angle a to bottom of guide groove rotation, the axial location pin-and-hole alignment between the stop edge of the barrel of seat tube and gland upper end at this moment along guide groove then; Installing and locating is pinned, and promptly accomplishes the prepackage process waterborne of guide base; Process of press under water: the guide base that will pre-install is transferred to the underwater well head port; Seat tube backstop is fixed; Gland presses down then; An elasticity lock ring of installing present tube endoporus below is imported locking hole, and gland continues to move down until the extruding of elasticity lock ring is drawn in makes itself and well head termination engaging lock tight in the locking hole, and gland moves down and puts in place; This moment, the lock pin front end of controllable radial latch gear inserted the radial location pin-and-hole that the gland periphery is offered, and promptly accomplished the process of locking that is connected of guide base and well head termination.Release unloading process of the present invention is: the lock pin with the controllable radial latch gear radially withdraws from earlier; Last pressure-raising cover makes the elasticity lock ring deviate from locking hole; The engagement of elasticity lock ring and well head termination gets loose; At this moment guide base can be whole be deviate from the well head termination, this moment the facility of transferring just capable of using with carrying on the whole guide base to waterborne, promptly accomplish the release unloading process of guide base and well head termination.
Beneficial effect of the present invention is: 1, simple in structure, be provided with rationally, and can realize the locking of subsea production tree guide base and well head; 2, locking property is reliable, can use repeatedly; 3, be convenient to installation and removal, use easy and simple to handle.
Description of drawings
Fig. 1 is the front view of one embodiment of the invention.
Fig. 2 is the main sectional view of one embodiment of the invention.
Fig. 3 is the stereogram of seat tube in the one embodiment of the invention.
Fig. 4 is the stereogram of gland in the one embodiment of the invention.
The specific embodiment
Further specify embodiments of the invention below in conjunction with accompanying drawing.
Include guide base 17 and well head termination 18; Described guide base comprises seat tube 3 that is sleeved on the well head termination and the link that links with the seat tube; The endoporus hole wall of seat tube offers the guide groove 11 of bending from edge, upper end to bottom hole shoulder, and the bending guide groove is perpendicular-horizontal-perpendicular bending guide groove, seat tube endoporus configuration gland 5; The below periphery of gland is installed on guiding projection 12, guiding projection and bending guide groove phase configuration; Be drilled with axial location pin-and- hole 13,14 between the stop edge of the barrel of present tube and gland upper end, set shop bolt 4 in the axial location pin-and-hole, be used for circumferentially location and locking between gland and the seat tube.One side of present tube is installed on the controllable radial latch gear, and described controllable radial latch gear comprises the Connection Block 7 that links with the seat tube, and Connection Block is corresponding to the radial direction through hole of offering on the seat tube 15; The lock pin tube 8 that the Connection Block outside links; Be installed on lock pin 6 in the lock pin tube and dispose spring 9, install spring base 10 behind the spring, the lock pin front end stretches into seat tube endoporus; The lock pin rear end joins with the control steel wire, controls the flexible of lock pin.Radial location pin-and-hole 16 phase configuration that the lock pin of controllable radial latch gear and gland periphery are offered are used for the locking to gland.Lower end at gland is provided with locking hole; The locking hole aperture is provided with the downward importing taper hole of big end, locking hole and elasticity lock ring 2 phase configuration that are installed in well head termination periphery, and described elasticity lock ring is the C shape elasticity lock ring of a side otch; Relative set imports the conical surface in the upper end of C shape elasticity lock ring; With the importing taper hole phase configuration in locking hole aperture, this conical surface taper hole configuration contact position is the vertical guide groove height position of bending guide groove bottom, and the below of C shape elasticity lock ring disposes packing ring 1; The endoporus hole wall of C shape elasticity lock ring is provided with the damping ring grain; Well head termination periphery is the backstop ring grain that is meshed with the damping ring grain of corresponding configuration also, draw in through C shape elasticity lock ring to make itself and well head termination engaging lock tight, realization guide base and well head termination be connected locking.
Claims (9)
1. a subsea production tree guide base well head locking device is characterized in that including guide base and well head termination, and described guide base comprises the seat tube that is sleeved on the well head termination; The endoporus hole wall of seat tube offers the guide groove of bending from edge, upper end to bottom hole shoulder; Seat tube endoporus configuration gland, the below periphery of gland is installed on guiding projection, guiding projection and bending guide groove phase configuration; One side of present tube is installed on the controllable radial latch gear; The radial location pin-and-hole phase configuration that the lock pin of controllable radial latch gear and gland periphery are offered is provided with locking hole in the lower end of gland, locking hole and the elasticity lock ring phase configuration that is installed in well head termination periphery.
2. by the described subsea production tree guide base of claim 1 well head locking device, it is characterized in that the bending guide groove of the endoporus hole wall setting of described seat tube is perpendicular-horizontal-perpendicular guide groove that bends.
3. by the described subsea production tree guide base of claim 2 well head locking device, it is characterized in that the height of the vertical guide groove height of described bending guide groove bottom more than or equal to the elasticity lock ring.
4. by claim 1 or 2 described subsea production tree guide base well head locking devices, it is characterized in that being drilled with the axial location pin-and-hole between the stop edge of barrel and gland upper end of present tube, set shop bolt in the axial location pin-and-hole.
5. by claim 1 or 2 described subsea production tree guide base well head locking devices, it is characterized in that described elasticity lock ring is the C shape elasticity lock ring of a side otch.
6. by the described subsea production tree guide base of claim 5 well head locking device, it is characterized in that the locking hole aperture of described gland lower end is provided with the importing taper hole, relative set imports the conical surface in the upper end of C shape elasticity lock ring.
7. by the described subsea production tree guide base of claim 5 well head locking device, it is characterized in that the endoporus hole wall of described C shape elasticity lock ring is provided with the damping ring grain, well head termination periphery is the backstop ring grain that is meshed with the damping ring grain of corresponding configuration also.
8. by claim 1 or 2 described subsea production tree guide base well head locking devices; It is characterized in that described controllable radial latch gear comprises the Connection Block that links with the seat tube; The lock pin tube that links with Connection Block; Be installed on lock pin in the lock pin tube and dispose spring, the lock pin front end stretches into seat tube endoporus, and the lock pin rear end joins with the control steel wire.
9. by the described subsea production tree guide base of claim 5 well head locking device, it is characterized in that the below of described C shape elasticity lock ring disposes packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110373462.4A CN102383758B (en) | 2011-11-22 | 2011-11-22 | Guide base wellhead locking device of underwater Christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110373462.4A CN102383758B (en) | 2011-11-22 | 2011-11-22 | Guide base wellhead locking device of underwater Christmas tree |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102383758A true CN102383758A (en) | 2012-03-21 |
| CN102383758B CN102383758B (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110373462.4A Active CN102383758B (en) | 2011-11-22 | 2011-11-22 | Guide base wellhead locking device of underwater Christmas tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102383758B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044564A (en) * | 2014-06-28 | 2014-09-17 | 柳州市二和汽车零部件有限公司 | Auxiliary brake device of motor lorry |
| CN115977569A (en) * | 2022-12-15 | 2023-04-18 | 江苏欧瑞德石油机械有限公司 | Christmas tree convenient to control oil gas flow |
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| CN101082385A (en) * | 2006-05-29 | 2007-12-05 | 施托布利法韦日公司 | Connection element with locking groove and joint including such an element |
| CN201691801U (en) * | 2009-12-18 | 2011-01-05 | 东辉休闲运动用品(上海)有限公司 | Connection structure of control box and gas passing pipe of massage bath pool or water pool |
| CN201730552U (en) * | 2010-04-07 | 2011-02-02 | 宝鸡石油机械有限责任公司 | Hydraulic remote control locking device for expansion joint of ocean standpipes |
| CN102155181A (en) * | 2011-03-28 | 2011-08-17 | 中国海洋石油总公司 | Wellhead tieback connector |
| CN201944466U (en) * | 2010-12-13 | 2011-08-24 | 厦门建霖工业有限公司 | Pipe fitting connecting piece structure |
| CN102168536A (en) * | 2011-04-25 | 2011-08-31 | 中国石油大学(北京) | Underwater double-unlocking connector |
| CN202325367U (en) * | 2011-11-22 | 2012-07-11 | 江汉石油钻头股份有限公司 | Locking device of guide base and wellhead of subsea production tree |
-
2011
- 2011-11-22 CN CN201110373462.4A patent/CN102383758B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101082385A (en) * | 2006-05-29 | 2007-12-05 | 施托布利法韦日公司 | Connection element with locking groove and joint including such an element |
| CN201691801U (en) * | 2009-12-18 | 2011-01-05 | 东辉休闲运动用品(上海)有限公司 | Connection structure of control box and gas passing pipe of massage bath pool or water pool |
| CN201730552U (en) * | 2010-04-07 | 2011-02-02 | 宝鸡石油机械有限责任公司 | Hydraulic remote control locking device for expansion joint of ocean standpipes |
| CN201944466U (en) * | 2010-12-13 | 2011-08-24 | 厦门建霖工业有限公司 | Pipe fitting connecting piece structure |
| CN102155181A (en) * | 2011-03-28 | 2011-08-17 | 中国海洋石油总公司 | Wellhead tieback connector |
| CN102168536A (en) * | 2011-04-25 | 2011-08-31 | 中国石油大学(北京) | Underwater double-unlocking connector |
| CN202325367U (en) * | 2011-11-22 | 2012-07-11 | 江汉石油钻头股份有限公司 | Locking device of guide base and wellhead of subsea production tree |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044564A (en) * | 2014-06-28 | 2014-09-17 | 柳州市二和汽车零部件有限公司 | Auxiliary brake device of motor lorry |
| CN115977569A (en) * | 2022-12-15 | 2023-04-18 | 江苏欧瑞德石油机械有限公司 | Christmas tree convenient to control oil gas flow |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102383758B (en) | 2014-08-13 |
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Address after: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: Jianghan Petroleum Drilling Bit Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180224 Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee after: Kingdream Sinopec Petroleum Machinery Co. Ltd. Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: SINOPEC OILFIELD EQUIPMENT CORPORATION |