CN102383758B - Guide base wellhead locking device of underwater Christmas tree - Google Patents
Guide base wellhead locking device of underwater Christmas tree Download PDFInfo
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- CN102383758B CN102383758B CN201110373462.4A CN201110373462A CN102383758B CN 102383758 B CN102383758 B CN 102383758B CN 201110373462 A CN201110373462 A CN 201110373462A CN 102383758 B CN102383758 B CN 102383758B
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- guide base
- hole
- wellhead
- christmas tree
- locking device
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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 guide base wellhead locking device of underwater Christmas tree 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 subsea production tree development has very important meaning.Subsea production tree has dividing of vertical production tree and horizontal Christmas tree, its complex structure, by many component, formed, comprise production tree guide base, production tree body, tree cap, boll-weevil hanger, production tree connector, main valve, the parts such as flutter valve and pipeline, wherein one of 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 not.
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 is that the technical scheme that the problem of the above-mentioned proposition of solution adopts is: include guide base and well head termination, described guide base comprises the seat cylinder that is sleeved on well head termination, the endoporus hole wall of seat cylinder is takeed on the guide groove that offers bending from edge, upper end to bottom hole, seat cylinder 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 cylinder is installed on 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 arranges locking hole, locking hole with and the mutually trivial elastic 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 cylinder arranges 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 elastic lock ring.
Press such scheme, between the barrel of present cylinder and the stop edge of gland upper end, be drilled with axial location pin-and-hole, in axial location pin-and-hole, set shop bolt.
Press such scheme, described elastic lock ring is the C shape elastic lock ring of a side otch.
Press such scheme, the locking hole aperture of described gland lower end is provided with importing taper hole, in the upper end of C shape elastic lock ring relative set, imports the conical surface.
Press such scheme, described controllable radial latch gear comprises the Connection Block being connected with seat cylinder, with the lock pin cylinder that Connection Block is connected, is installed on lock pin and configures spring in lock pin cylinder, and lock pin front end stretches into seat cylinder endoporus, and lock pin rear end joins with control steel wire.
Press such scheme, the endoporus hole wall of described C shape elastic lock ring is provided with damping ring grain, the well head termination periphery backstop ring grain that also corresponding configuration is meshed with damping ring grain.
Press such scheme, the below of described C shape elastic lock ring disposes packing ring.
Locking process when the present invention uses is: divide prepackage waterborne and be pressed into two steps under water, pre-process of assembling waterborne: first packing ring and elastic lock ring are put into seat cylinder endoporus bottom, next gland is entered to seat cylinder endoporus, the guiding projection of gland its periphery when entering seat cylinder endoporus first aligns with the guide groove of seat cylinder endoporus, then along guide groove, be displaced downwardly to the vertical top of guide slot of guide groove bending place along angle of horizontal guide groove rotation to bottom, the now barrel of seat cylinder and the alignment of the axial location pin-and-hole between the stop edge of gland upper end, shop bolt is installed, complete the waterborne pre-process of assembling of guide base, process of press under water: the guide base of having pre-installed is transferred to underwater well head port, seat cylinder backstop is fixed, then gland presses down, the elastic lock ring of installing present cylinder endoporus below is imported to locking hole, gland continues to move down until elastic lock ring extruding is drawn in and made itself and well head termination engaging lock tight in locking hole, gland moves down and puts in place, now the lock pin front end of controllable radial latch gear inserts the radial location pin-and-hole that gland periphery is offered, and completes the connection locking process of guide base and well head termination.Release unloading process of the present invention is: first the lock pin of controllable radial latch gear is radially exited, upper pressure-raising cover makes elastic lock ring deviate from locking hole, the engagement of elastic lock ring and well head termination gets loose, at this moment guide base can be whole be deviate from well head termination, now just can utilize and transfer facility and will on whole guide base, carry to waterborne, complete the release unloading process of guide base and well head termination.
Beneficial effect of the present invention is: 1, simple in structure, arrange rationally, and can realize the locking of subsea production tree guide base and well head; 2, locking property is reliable, can Reusability; 3, be convenient to installation and removal, use easy and simple to handle.
Accompanying drawing explanation
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 cylinder in one embodiment of the invention.
Fig. 4 is the stereogram of gland in one embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate embodiments of the invention.
Include guide base 17 and well head termination 18, described guide base comprises and is sleeved on the seat cylinder 3 of well head termination and the link being connected with seat cylinder, the endoporus hole wall of seat cylinder is takeed on the guide groove 11 that offers bending from edge, upper end to bottom hole, bending guide groove is perpendicular-horizontal-perpendicular bending guide groove, seat cylinder endoporus configuration gland 5, the below periphery of gland is installed on guiding projection 12, guiding projection and bending guide groove phase configuration; Between the barrel of present cylinder and the stop edge of gland upper end, be drilled with axial location pin-and-hole 13,14, in axial location pin-and-hole, set shop bolt 4, for circumferentially location and locking between gland and seat cylinder.One side of present cylinder is installed on controllable radial latch gear, described controllable radial latch gear comprises the Connection Block 7 being connected with seat cylinder, Connection Block is corresponding to the radial direction through hole 15 of offering on seat cylinder, the lock pin cylinder 8 that Connection Block outside is connected, in lock pin cylinder, be installed on lock pin 6 and configure spring 9, installing spring base 10 after spring, lock pin front end stretches into seat cylinder endoporus, lock pin rear end joins with 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, for the locking to gland.Lower end at gland arranges locking hole, locking hole aperture is provided with the downward importing taper hole of large end, locking hole and elastic lock ring 2 phase configuration that are installed in well head termination periphery, described elastic lock ring is the C shape elastic lock ring of a side otch, in the upper end of C shape elastic lock ring relative set, import the conical surface, importing taper hole phase configuration with locking hole aperture, the vertical guide groove height position that this conical surface taper hole configuration contact position is bending guide groove bottom, the below of C shape elastic lock ring disposes packing ring 1, the endoporus hole wall of C shape elastic lock ring is provided with damping ring grain, the well head termination periphery backstop ring grain that also corresponding configuration is meshed with damping ring grain, by C shape elastic lock ring, draw in and to make itself and well head termination engaging lock tight, realize the connection locking of guide base and well head termination.
Claims (7)
1. a guide base wellhead locking device of underwater Christmas tree, it is characterized in that including guide base and well head termination, described guide base comprises the seat cylinder that is sleeved on well head termination, the endoporus hole wall of seat cylinder is takeed on the guide groove that offers bending from edge, upper end to bottom hole, seat cylinder 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 cylinder is installed on 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 arranges locking hole, locking hole and the elastic lock ring phase configuration that is installed in well head termination periphery, the bending guide groove that the endoporus hole wall of described seat cylinder arranges is perpendicular-horizontal-perpendicular bending guide groove, the vertical guide groove height of described bending guide groove bottom is more than or equal to the height of elastic lock ring.
2. by guide base wellhead locking device of underwater Christmas tree claimed in claim 1, it is characterized in that being drilled with axial location pin-and-hole between the barrel of present cylinder and the stop edge of gland upper end, in axial location pin-and-hole, set shop bolt.
3. by guide base wellhead locking device of underwater Christmas tree claimed in claim 1, it is characterized in that described elastic lock ring is the C shape elastic lock ring of a side otch.
4. by guide base wellhead locking device of underwater Christmas tree claimed in claim 3, it is characterized in that the locking hole aperture of described gland lower end is provided with importing taper hole, in the upper end of C shape elastic lock ring relative set, import the conical surface.
5. by guide base wellhead locking device of underwater Christmas tree claimed in claim 3, it is characterized in that the endoporus hole wall of described C shape elastic lock ring is provided with damping ring grain, the well head termination periphery backstop ring grain that also corresponding configuration is meshed with damping ring grain.
6. by guide base wellhead locking device of underwater Christmas tree claimed in claim 1, it is characterized in that described controllable radial latch gear comprises the Connection Block being connected with seat cylinder, the lock pin cylinder being connected with Connection Block, in lock pin cylinder, be installed on lock pin and configure spring, lock pin front end stretches into seat cylinder endoporus, and lock pin rear end joins with control steel wire.
7. by guide base wellhead locking device of underwater Christmas tree claimed in claim 3, it is characterized in that the below of described C shape elastic 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 CN102383758A (en) | 2012-03-21 |
| CN102383758B true CN102383758B (en) | 2014-08-13 |
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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 |
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| Country | Link |
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| CN (1) | CN102383758B (en) |
Families Citing this family (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 |
Citations (7)
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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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102383758A (en) | 2012-03-21 |
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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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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 |
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