CN203905883U - Metal sealing device used for underwater well head - Google Patents
Metal sealing device used for underwater well head Download PDFInfo
- Publication number
- CN203905883U CN203905883U CN201420193750.0U CN201420193750U CN203905883U CN 203905883 U CN203905883 U CN 203905883U CN 201420193750 U CN201420193750 U CN 201420193750U CN 203905883 U CN203905883 U CN 203905883U
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- ring
- metal
- sealing device
- well head
- metal sealing
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- Expired - Fee Related
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Abstract
The utility model relates to a metal sealing device used for an underwater well head in ocean oil and gas development. The metal sealing device comprises a driving ring, a well head opening locking ring, an opening limit ring, a limit screw, a connecting ring, a bell-weevil hanger opening locking ring, a shear pin, a guide connecting screw, a supporting ring, a metal inner sealing ring and a metal outer sealing ring, wherein a groove in the inner side of the driving ring is used for being connected with a mating tool; a groove which is located above the outer side is used for placing the well head opening locking ring; a groove which is located below the outer side is used for placing the limit opening ring; the driving ring is sleeved in the connecting ring; the bell-weevil hanger opening locking ring is placed on an internal shaft shoulder of the connecting ring and is used for positioning and locking a bell-weevil hanger; the connecting ring and the supporting ring are connected by the guide connecting screw; the metal inner and outer sealing rings are respectively placed on the inner and outer sides of the supporting ring. According to the metal sealing device used for the underwater well head, the higher sealing pressure can be provided, the rapid connection and releasing between the metal sealing device and a dropping device are realized, parts are easily detached, the maintenance is facilitated, the sealing and unsealing work procedures are simple, and safety and reliability are realized.
Description
Technical field
The utility model belongs to marine oil and gas drilling and production technology field, is applied to underwater well head head system, realizes the metal sealing device of pressure packing between high undersea hydrostatic pressures well head head and casing hanger.
Background technology
The exploitation of petroleum resources is being just that deep-sea direction strides forward towards marine oil and gas, and underwater well head head system is the indispensable equipment of marine oil and gas exploration and development, and the quality of its sealing performance directly has influence on the reliability of subsea production system.Ocean mainly contains by underwater wellhead system sealing device existing problems at present: 1, seabed operating mode (pressure, temperature) is complicated and changeable, and sealing device easily lost efficacy; 2, transfer installation procedure complexity, the activity duration is long, and risk increases, and one-time success rate is lower; 3, install after inefficacy first, sealing device is substantially discarded, and component interchangeability is low.
Summary of the invention
The technical problems to be solved in the utility model is for underwater well head head system provides a kind of metal sealing device, and mineralization pressure packing between well head head and casing hanger under water realizes sealing reliably.Inside and outside metal o-ring compressive deformation, can provide higher sealing load, and be independent of other component, has improved the interchangeability of device, can improve economy.
Technical solution adopted in the utility model is: metal sealing device is mainly made up of driving ring, well head opening retaining ring, connecting ring, casing hanger opening retaining ring, shear pin, guiding attachment screw, support ring etc.Described driving ring is socketed in connecting ring, under the supporting driving of transferring erecting tools, moves downward; Described support ring is connected with connecting ring by guiding attachment screw, and axial relative motion occurs, and the inside and outside metal o-ring of extruding, realizes sealing.
Press such scheme, described connecting ring has tapped through hole and smooth through hole, for guiding attachment screw is installed.
Press such scheme, described support ring has vertical gathering sill, coordinates with guiding attachment screw.
Press such scheme, described well head opening retaining ring is outside distending in the time of driving ring generation axially-movable, completes the location with underwater wellhead.
Press such scheme, described casing hanger opening retaining ring radial contraction under the squeezing action of driving ring, completes the location with casing hanger.
The utility model has the advantage of: 1, sealing device coordinates with the supporting erecting tools of transferring by groove, be easy to hang and thread off; 2, device is relatively independent between component, and interchangeability is good, for ease of maintenaince and maintenance; 3, device and well head inwall and casing hanger outer wall are by opening elastic lock ring positioning and locking, and simple, reliability is high; 4, only need kit to axially move just can to realize installation and the recovery of this device, operation is simple.
Brief description of the drawings
Fig. 1 is assembling section of the present utility model.
Fig. 2 is schematic diagram after the utility model installation in position.
Fig. 3 is the utility model connecting ring schematic diagram; Fig. 3 .1 is connecting ring top view; Fig. 3 .2 is A-A sectional view; Fig. 3 .3 is B-B sectional view.
Fig. 4 is the utility model support ring schematic diagram; Fig. 4 .1 is support ring top view; Fig. 4 .2 is A-A sectional view; Fig. 4 .3 is B-B sectional view.
Fig. 5 is the utility model connecting ring and support ring connection diagram; Fig. 5 .1 is top view after connecting ring is connected with support ring; Fig. 5 .2 is A-A sectional view; Fig. 5 .3 is B-B sectional view.
Detailed description of the invention
In conjunction with above-mentioned accompanying drawing, embodiment of the present utility model is described.
A kind of underwater wellhead is made up of 1-driving ring, 2-well head opening retaining ring, 3-opening spacing ring, 4-stop screw, 5-connecting ring, 6-casing hanger opening retaining ring, 7-shear pin, 8-guiding attachment screw, 9-support ring, the outer metal o-ring of 10-, 11 interior metal o-rings with metal sealing device.
Described driving ring 1 inboard groove for being connected of kit, outside upper grooves is used for placing well head head opening retaining ring 2, be used for the positioning and locking with well head head 12, outside lower grooves is used for placing opening spacing ring 3, driving ring 1 is socketed in connecting ring 5, realize and connect and prevent from throwing off with opening spacing ring 3, stop screw 4 is tightened in the tapped through hole of connecting ring 5 tops, be used for adjusting opening spacing ring 3 extent of opening, described casing hanger opening retaining ring is positioned over the inner shaft shoulder of connecting ring 5 place, be used for the positioning and locking with casing hanger 13, connecting ring 5 lower ends, outside have screwed hole, interior survey lower end has through hole, support ring 9 has vertical gathering sill and through hole, connecting ring 5 is connected by guiding attachment screw 8 with support ring 9, and shear pin 7 is installed, described metal inner seal ring 11 and metal exterior seal ring 10 are positioned over respectively the inside and outside both sides of support ring 9.
Sealing installation process of the present utility model: device is assembled shown in accompanying drawing 1, the supporting instrument of transferring connects and locks in driving ring 1 inboard groove, when arriving after sealing station, the instrument of transferring can move downward, there is axially-movable in driving ring 1, and promote connecting ring 5 and move downward, increase the power of transferring, shear pin 7 is cut off, driving ring 1 continues to promote connecting ring 5 and moves downward, connecting ring 5 arrives metal inner seal ring 11 and metal exterior seal ring 10 upper end faces, and start extrusion metal sealing ring make its deform realize sealing, now, well head opening retaining ring 2 and casing hanger opening retaining ring 6 have arrived locked position under the effect of driving ring 1, there is relative displacement with well head opening lock ring 2 in driving ring 1, well head opening lock ring 2 moves and distending from the outer upper end groove of driving ring 1, be embedded in the groove of well head head 12 inwalls, realize location and locking with well head head, driving ring 1 moves down, force casing hanger opening retaining ring 6 inwardly to be shunk, be embedded in the groove in casing hanger 13 outsides, realize location and locking with casing hanger, whole installation process is complete, instrument is transferred in withdrawal.
This uses novel deblocking removal process: recovery instrument arrives sealing device position, sealed at the interior survey groove of driving ring 1 with sealing device, on recovery instrument, carry, drive driving ring 1 to move upward, well head opening retaining ring 2 is at driving ring 1 outer upper end groove retraction, throw off with high-pressure well oral 12, casing hanger opening retaining ring 6 times is swollen, throw off with casing hanger 13, recovery instrument is carried on continuing, driving ring 1 drives connecting ring 5 to move upward, connecting ring 5 drives support ring 9 to move upward, metal inner seal ring 11 and metal exterior seal ring 10 deblockings, on instrument, carry to workbench, deblocking operation is complete.
Claims (5)
1. a underwater wellhead metal sealing device, it is characterized in that including the inside and outside both sides of support ring (9) and place respectively interior metal o-ring (11) and outer metal o-ring (10), support ring (9) has vertical gathering sill, be connected by guiding attachment screw (8) with connecting ring (5), casing hanger opening retaining ring (6) is positioned over the shaft shoulder place, inside of connecting ring (5), driving ring (1) is socketed in the inner chamber of connecting ring (5) top, described driving ring (1) outer wall has two place's annular grooves, place respectively well head opening retaining ring (2) and opening spacing ring (3), described opening spacing ring (3) matches by the stop screw (4) being tightened in connecting ring (5).
2. underwater wellhead metal sealing device claimed in claim 1, is characterized in that described interior metal o-ring (11) and outer metal o-ring (10) outer wall have annular flange flange, in flange, is cavity, and its inside is full of inert gas.
3. underwater wellhead metal sealing device claimed in claim 1, it is characterized in that described connecting ring (5) outside has tapped through hole, interior survey has through hole, and support ring (9) has vertical gathering sill, and both connect by guiding attachment screw (8).
4. underwater wellhead metal sealing device claimed in claim 1, is characterized in that described connecting ring (5) outside has tapped through hole, and support ring (9) has through hole, for placing shear pin (7).
5. underwater wellhead metal sealing device claimed in claim 1, it is characterized in that described driving ring (1) lower end is an inclined-plane, tightly encircle (6) for actuating sleeve pipe hanger hatch lock, driving ring (1) inside has annular groove, and transfers recovery instrument and coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420193750.0U CN203905883U (en) | 2014-04-21 | 2014-04-21 | Metal sealing device used for underwater well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420193750.0U CN203905883U (en) | 2014-04-21 | 2014-04-21 | Metal sealing device used for underwater well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905883U true CN203905883U (en) | 2014-10-29 |
Family
ID=51780172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420193750.0U Expired - Fee Related CN203905883U (en) | 2014-04-21 | 2014-04-21 | Metal sealing device used for underwater well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905883U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106852057A (en) * | 2017-03-11 | 2017-06-13 | 谢媛 | A kind of deep water liquid surface measuring device circuit water-proof cabin |
| CN108729872A (en) * | 2018-05-22 | 2018-11-02 | 上海霞为石油设备技术服务有限公司 | A kind of new casing hanger |
| CN109958398A (en) * | 2019-04-26 | 2019-07-02 | 昆山艾蓓蓓阀门有限公司 | A kind of four-way bobbin seal structure applied to oil well |
| CN110552651A (en) * | 2018-06-04 | 2019-12-10 | 上海霞为石油设备技术服务有限公司 | novel deep water well head equipment |
| CN112377138A (en) * | 2020-11-12 | 2021-02-19 | 中国石油大学(华东) | Sealing assembly for underwater wellhead |
| CN113417730A (en) * | 2021-07-21 | 2021-09-21 | 保蓝行(福建)环保技术研究院有限责任公司 | Diesel engine tail gas aftertreatment device |
-
2014
- 2014-04-21 CN CN201420193750.0U patent/CN203905883U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106852057A (en) * | 2017-03-11 | 2017-06-13 | 谢媛 | A kind of deep water liquid surface measuring device circuit water-proof cabin |
| CN108729872A (en) * | 2018-05-22 | 2018-11-02 | 上海霞为石油设备技术服务有限公司 | A kind of new casing hanger |
| CN108729872B (en) * | 2018-05-22 | 2024-06-04 | 上海霞为石油设备技术服务有限公司 | Novel casing hanger |
| CN110552651A (en) * | 2018-06-04 | 2019-12-10 | 上海霞为石油设备技术服务有限公司 | novel deep water well head equipment |
| CN110552651B (en) * | 2018-06-04 | 2024-06-11 | 上海霞为石油设备技术服务有限公司 | Novel deep water wellhead equipment |
| CN109958398A (en) * | 2019-04-26 | 2019-07-02 | 昆山艾蓓蓓阀门有限公司 | A kind of four-way bobbin seal structure applied to oil well |
| CN109958398B (en) * | 2019-04-26 | 2024-05-07 | 昆山艾蓓蓓阀门有限公司 | Four-way sleeve sealing structure applied to oil well |
| CN112377138A (en) * | 2020-11-12 | 2021-02-19 | 中国石油大学(华东) | Sealing assembly for underwater wellhead |
| CN113417730A (en) * | 2021-07-21 | 2021-09-21 | 保蓝行(福建)环保技术研究院有限责任公司 | Diesel engine tail gas aftertreatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20160421 |