CN2851574Y - Rupture disc controlled type spherical downhole shut-in valve - Google Patents
Rupture disc controlled type spherical downhole shut-in valve Download PDFInfo
- Publication number
- CN2851574Y CN2851574Y CN 200520097024 CN200520097024U CN2851574Y CN 2851574 Y CN2851574 Y CN 2851574Y CN 200520097024 CN200520097024 CN 200520097024 CN 200520097024 U CN200520097024 U CN 200520097024U CN 2851574 Y CN2851574 Y CN 2851574Y
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- ball
- valve
- rupture disk
- mandrel
- operating mechanism
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Abstract
The utility model discloses a rupture disc controlled type spherical downhole shut-in valve which is used for the test of a stratum of a high-temperature high-pressure oil-gas well. The utility model is formed by that a spherical valve part is connected with a spherical valve operation mechanism by an operation arm, and the spherical valve operation mechanism is orderly connected with a power mechanism by a cutting core shaft. The operation mechanism is driven to make a spherical valve body rotated to a shut-in position to shut in the well. The utility model has the advantages of simple structure and convenient operation. The utility model realizes the full-path downhole shut-in valve of which the operation pressure doesn't change following with well depth and a well temperature. The utility model is suitable for the test of a stratum of a sleeve well of the test field of the oil test of oil exploration, particularly stratum test carried out in a high-temperature high-pressure deep well. The utility model can carry out the linking operation of the test, hole perforation, acidificaiton and press rupture.
Description
Affiliated technical field
The utility model relates in a kind of oil exploration formation testing test process, the downhole closing device that formation testing is used, especially a kind of can be under high temperature and high pressure environment reliable closing well, do not need in device, to fill high pressure nitrogen, and can test the rupture disk control type ball-type downhole closing valve of doing with perforation, acidifying, pressure break connection, be applicable to the formation testing of oil gas well.
Background technology
In the formation testing of oil gas well, have three types downhole closing valve available at present, its mode of operation be respectively rotary test tubing string operation, on put and put test string operation, casing annulus pressure operation.Rotary test tubing string operation and on put the formation testing that the downhole closing valve of putting the test string operation generally is used for conventional well.
In the downhole closing valve of casing annulus pressure operation, from structure an energy storage equipment is arranged all, generally use Compressed Gas accumulation of energy (mainly being nitrogen).When opening shut-in valve with the energy of annular space pressurization, in energy storage equipment, put aside energy, after the annular space pressure release, discharge the power that the energy in the energy storage equipment is closed as shut-in valve.Before going into the well, this class instrument needs in instrument, to fill high pressure nitrogen.The subject matter that it exposes in actual high temperature high pressure deep well formation testing is: because well is darker, the reservoir pressure coefficient height, corresponding well killing fluid than great, viscosity is high, the non-newtonian flow body characteristics of well killing fluid is obvious, its pressure transmission poor-performing, the operating pressure that annular space applied is very big in loss on the way, and nitrogen accumulation of energy effect is diminished; If improve operating pressure, may influence other again and also suppress the instrument of operation, and reduce the safety of well head sleeve pipe by annular space; And pure inadequately nitrogen under high pressure can be blasted.
Summary of the invention
Unreliable in order to overcome existing downhole closing device performance in the high temperature high pressure deep well formation testing, there is the problem of explosion danger in high pressure nitrogen, the utility model provides a kind of rupture disk control type ball-type downhole closing valve, can be under high temperature and high pressure environment reliable closing well does not need to fill high pressure nitrogen in device.And can test with the connection of perforation, acidifying, pressure break and do.
The technical scheme that its technical problem that solves the utility model adopts is: partly be connected with the globe valve operating mechanism by motion arm by globe valve part, the globe valve operating mechanism partly partly is connected with actuating unit by the shearing mandrel and constitutes.
The structure of globe valve part is: be connected as a single entity by screw thread by top connection, ball seat sheath, ball cage, and grip spherical valve body, the ball seat sheath is connected with the ball valve urceolus with shoulder by spline, design and installation has disk spring according to seal request, top connection sealing ring, ball valve urceolus sealing ring, ball seat sheath sealing ring, and top connection Supporting ring, ball valve urceolus Supporting ring, shear the mandrel Supporting ring, the spherical protruding pin on the motion arm is inserted in the handle hole on the spherical valve body.The structure of globe valve operating mechanism is: motion arm be operatively connected the mutual hook of pipe nipple and connect, be operatively connected pipe nipple and elastic claw by being threaded togather.Actuating unit by rupture disk urceolus, beam, shearing mandrel, rupture disk, cut off, lower contact is linked in sequence and forms, design and installation has ball valve urceolus sealing ring, rupture disk urceolus sealing ring, shears stem seal circle, lower contact sealing ring according to seal request, and ball valve urceolus Supporting ring, shears mandrel Supporting ring, rupture disk urceolus Supporting ring, shears mandrel Supporting ring, lower contact Supporting ring.Form a cavity between rupture disk urceolus and the shearing mandrel after assembling, the atmospheric pressure when its pressure keeps with assembling substantially is identical, becomes common pressure chamber.The elastic claw of shearing in mandrel and the globe valve operating mechanism meshes together.When rupture disk is broken in the annular space pressurization, annular pressure affacts on the shoulder of shearing the mandrel middle part, the shoulder opposite side is a common pressure chamber, thereby at the very big pressure reduction of shoulder both sides generation, this pressure reduction produces thrust upwards to shearing mandrel, after thrust surpasses the shear strength that cuts off, cuts off to cut off and moves upward, promote to be operatively connected pipe nipple and motion arm moves upward by elastic claw, motion arm is stirred spherical valve body and is turned to fastening position.After spherical valve body turns to fastening position, elastic claw will move to large diameter place, rupture disk urceolus upper end, the openend of elastic claw can rise greatly, no longer mesh with the shearing mandrel, it is up to shear the mandrel continuation, can not promote the globe valve operating mechanism again, shears mandrel at last and hits on beam, whole downhole closing action is finished in stop motion.
Can be as required on the instrument, the rupture disk of different fracture pressures is adorned in choosing.Adopt the on off state of globe valve control tool, the spherical protruding pin on the motion arm is inserted in the handle hole on the spherical valve body, and motion arm moves upward and can stir spherical valve body and turn to fastening position.Motion arm be operatively connected the mutual hook of pipe nipple and connect, be operatively connected pipe nipple and be bound up with elastic claw again.Urceolus that rupture disk is housed and one shear and form a cavity between the mandrel after assemblings, and the atmospheric pressure of its internal pressure during with assembling is basic identical, becomes common pressure chamber.Shearing mandrel and elastic claw meshes together.When instrument in the down-hole, when rupture disk is broken in casing annulus pressurization, annular pressure affacts on the shoulder of shearing the mandrel middle part, the shoulder opposite side is a common pressure chamber, thereby at the very big pressure reduction of shoulder both sides generation, this pressure reduction produces thrust upwards to shearing mandrel, shears when mandrel moves upward and drives elastic claw, is operatively connected on pipe nipple and the motion arm and moves, and stirs spherical valve body and turns to fastening position.After spherical valve body turns to fastening position; elastic claw moves to large diameter place, rupture disk urceolus upper end; the openend of elastic claw can rise greatly; no longer mesh with the shearing mandrel; shearing mandrel continues up; can not promote the globe valve operating mechanism again; protection globe valve and globe valve operating mechanism not impaired (thrust that makes progress because of the shearing mandrel is very big); shearing mandrel at last hits on a beam; the cushioning effect of beam can reduce the vibrations (very fast because of shearing the mandrel movement velocity) of instrument; in the stop motion of slowing down gradually of the cushioning effect down cut mandrel of beam, finish whole downhole closing action.
The beneficial effects of the utility model: changed filled high pressure nitrogen structure in the device, safety, reliable can be used under high temperature and high pressure environment in the construction repeatedly, closes reliable, do not need in device, to fill high pressure nitrogen, and can test with the connection of perforation, acidifying, pressure break and do.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is a structure principle chart of the present utility model.
Among the figure: 1. rupture disk urceolus, 2. shear mandrel, 3. beam, 4. elastic claw, 5. lower contact 6. cuts off, 7. be operatively connected pipe nipple, 8. ball cage, 9. disk spring, 10. spherical valve body, 11. ball seat sheaths, 12. motion arms, 13. the ball valve urceolus, 14. top connections, 15. Supporting rings, 16. the top connection sealing ring, 17. ball valve urceolus Supporting rings, 18. ball valve urceolus sealing rings, 19. ball seat sheath sealing ring, 20. shear mandrel Supporting ring, 21. rupture disk urceolus Supporting rings, 22. rupture disk urceolus sealing ring, 23. shear the mandrel Supporting ring, 24. shear stem seal circle, 25. lower contact Supporting rings, 26. the lower contact sealing ring, 27. rupture disks.
The specific embodiment
The utility model partly is connected with the globe valve operating mechanism by motion arm (12) by globe valve, and the globe valve operating mechanism partly is connected with actuating unit and constitutes by shearing mandrel (2).
The structure of globe valve part is: by top connection (14), ball seat sheath (11), ball cage (8) is connected as a single entity by screw thread, and grip spherical valve body (10), ball seat sheath (11) is connected with ball valve urceolus (13) with shoulder by spline, design and installation has disk spring (9) between ball cage (8) and the motion arm (12), design according to seal request, interconnect sealing place top connection sealing ring (16) is installed, ball valve urceolus sealing ring (18), ball seat sheath sealing ring (19), and top connection Supporting ring (15), ball valve urceolus Supporting ring (17), shear mandrel Supporting ring (20), the spherical protruding pin on the motion arm (12) is inserted in the handle hole on the spherical valve body (10).The structure of globe valve operating mechanism part is: motion arm (12) be operatively connected pipe nipple (7) mutually hook connect, be operatively connected pipe nipple (7) and elastic claw (4) by being threaded togather.Actuating unit by rupture disk urceolus (1), beam (3), shear mandrel (2), rupture disk (27), cut off (6), lower contact (5) is linked in sequence and form, design according to seal request, interconnect sealing place and ball valve urceolus sealing ring (18), rupture disk urceolus sealing ring (22) are installed, shear stem seal circle (24), lower contact sealing ring (26), and ball valve urceolus Supporting ring (17), shear mandrel Supporting ring (20), rupture disk urceolus Supporting ring (21), shear mandrel Supporting ring (23), lower contact Supporting ring (25).Form a cavity between rupture disk urceolus and the shearing mandrel after assembling, the atmospheric pressure when its pressure keeps with assembling substantially is identical, becomes common pressure chamber.The elastic claw of shearing in mandrel (2) and the globe valve operating mechanism meshes together.When rupture disk (27) is broken in the annular space pressurization, annular pressure affacts on the shoulder of shearing mandrel (2) middle part, the shoulder opposite side is a common pressure chamber, thereby at the very big pressure reduction of shoulder both sides generation, this pressure reduction produces thrust upwards to shearing mandrel, thrust surpass cut off the shear strength of (6) after, cut off and cut off (6) and move upward, promote to be operatively connected pipe nipple (7) and motion arm (12) moves upward by elastic claw (4), motion arm (12) is stirred spherical valve body (10) and is turned to fastening position.After spherical valve body (10) turns to fastening position, elastic claw (4) will move to large diameter place, rupture disk urceolus (1) upper end, the openend of elastic claw (4) can rise greatly, no longer mesh with shearing mandrel (2), it is up to shear mandrel (2) continuation, can not promote the globe valve operating mechanism again, shears mandrel (2) at last and hits on beam (3), whole downhole closing action is finished in stop motion.
Can be as required on the instrument, the rupture disk of different fracture pressures is adorned in choosing.
Claims (6)
1. rupture disk control type ball-type downhole closing valve that is used for oil well test, it is characterized in that: the globe valve part partly is connected with the globe valve operating mechanism by motion arm, and globe valve operating mechanism part is linked in sequence by shearing mandrel and actuating unit and constitutes.
2. rupture disk control type ball-type downhole closing valve according to claim 1, it is characterized in that the ball valve part is by top connection, the ball seat sheath, the ball cage is connected as a single entity by screw thread, and grip spherical valve body, the ball seat sheath is connected with the ball valve urceolus with shoulder by spline, design and installation has disk spring according to seal request, the top connection sealing ring, ball valve urceolus sealing ring, ball seat sheath sealing ring, and top connection Supporting ring, ball valve urceolus Supporting ring, shear the mandrel Supporting ring, handle hole on the spherical valve body is connected with spherical protruding pin on the motion arm and constitutes, spherical valve body is positioned at the instrument topmost, the ball valve operating mechanism is in the bottom, and the last lower ball base of spherical valve body all is lined with disk spring.
3. rupture disk control type ball-type downhole closing valve according to claim 1 and 2, it is characterized in that the globe valve operating mechanism by motion arm be operatively connected the mutual hook of pipe nipple and connect, be operatively connected pipe nipple and elastic claw and constitute by being threaded togather.
4. rupture disk control type ball-type downhole closing valve according to claim 1 and 2, it is characterized in that actuating unit by rupture disk urceolus, beam, shearing mandrel, rupture disk, cut off, lower contact is linked in sequence, the elastic claw of shearing in mandrel and the globe valve operating mechanism meshes together and constitutes.
5, rupture disk control type ball-type downhole closing valve according to claim 3, it is characterized in that actuating unit by rupture disk urceolus, beam, shearing mandrel, rupture disk, cut off, lower contact is linked in sequence, the elastic claw of shearing in mandrel and the globe valve operating mechanism meshes together and constitutes.
6, rupture disk control type ball-type downhole closing valve according to claim 1, it is characterized in that the globe valve part is connected with the globe valve operating mechanism by motion arm, globe valve operating mechanism part has sealing ring and Supporting ring by the sealing place design and installation that the shearing mandrel is connected with actuating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097024 CN2851574Y (en) | 2005-07-01 | 2005-07-01 | Rupture disc controlled type spherical downhole shut-in valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520097024 CN2851574Y (en) | 2005-07-01 | 2005-07-01 | Rupture disc controlled type spherical downhole shut-in valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851574Y true CN2851574Y (en) | 2006-12-27 |
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ID=37585530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520097024 Expired - Lifetime CN2851574Y (en) | 2005-07-01 | 2005-07-01 | Rupture disc controlled type spherical downhole shut-in valve |
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| Country | Link |
|---|---|
| CN (1) | CN2851574Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877805A (en) * | 2011-07-14 | 2013-01-16 | 四川宏华石油设备有限公司 | Pressure-limiting device |
| CN111441744A (en) * | 2020-05-08 | 2020-07-24 | 中国石油天然气集团有限公司 | High-pressure energy-storage pressure-relief starting type pressure control valve and using method |
| CN114687703A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Once reverse circulation shut-in test valve |
-
2005
- 2005-07-01 CN CN 200520097024 patent/CN2851574Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877805A (en) * | 2011-07-14 | 2013-01-16 | 四川宏华石油设备有限公司 | Pressure-limiting device |
| CN111441744A (en) * | 2020-05-08 | 2020-07-24 | 中国石油天然气集团有限公司 | High-pressure energy-storage pressure-relief starting type pressure control valve and using method |
| CN111441744B (en) * | 2020-05-08 | 2023-11-14 | 中国石油天然气集团有限公司 | High-pressure energy storage and pressure release start type pressure control valve and use method thereof |
| CN114687703A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Once reverse circulation shut-in test valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150701 Granted publication date: 20061227 |
|
| EXPY | Termination of patent right or utility model |