CN201110163Y - Ir-kill-job environment protection operation fluid pressure control uncoupling machine for water injection well - Google Patents
Ir-kill-job environment protection operation fluid pressure control uncoupling machine for water injection well Download PDFInfo
- Publication number
- CN201110163Y CN201110163Y CNU2007201549083U CN200720154908U CN201110163Y CN 201110163 Y CN201110163 Y CN 201110163Y CN U2007201549083 U CNU2007201549083 U CN U2007201549083U CN 200720154908 U CN200720154908 U CN 200720154908U CN 201110163 Y CN201110163 Y CN 201110163Y
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- slide block
- seat
- central tube
- piston
- lock
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Abstract
The utility model relates to a water injection well pressure balancing environmental protection operation hydraulic control on-off connector, which mainly solves the problem that the existing on-off connector is difficult to be poured out, and a column jacket is easy to upwards ascend. The utility model is characterized in that the lower portion of an upper joint (1) is connected with a central pipe (2) and an outer casing body (3), the inner upper end of the inner casing body (3) is provided with a piston (4), a pressure transfer hole (6) is arranged on the central pipe (2), the lower end of the piston (4) is connected with a lower-pressure cavity sealing ring (8), a slide block seat (10) in a slide block locating collar (9) on the lower end of a sealing tube (7) is connected with a slide block (11), the outer wall of the central pipe (2) is surrounded with a slide track (12), the lower end of the slide block seat (10) is connected with a spring push tube (14) through a spring push seat (13), the lower end of the spring push tube (14) is connected with a lock sleeve seat (16) and a lock sleeve (17) in turn, the lower end in a lock block seat (18) on the lower end of the central pipe (2) is connected with a doffing joint (20). The on-off connector has the advantages of simple overspill, whose pipe pillar does not upwards ascend.
Description
Technical field:
Down-hole control device, especially not kill-job of water injection well environmental protection operation hydraulic control on-off connector when the utility model relates to a kind of water injection well in oil fields snubbing serving.
Background technology:
Water injection well in oil fields is in the process of water filling, and the adjustment, reprovision that need often carry out maintainability etc. removes the water injection string operation.When removing the water injection string operation, because strata pressure is big, the well liquid in the well can spray from pit shaft, brings difficulty for workman's construction operation, has greatly influenced progress, quality and the safety of job execution, causes environment pollution simultaneously.In order to prevent that well liquid from spraying from pit shaft, generally all adopt mud to carry out kill job.Mud lubrication not only can cause the mud contamination oil reservoir, influences displacement of reservoir oil by filling water production, so water injection well in oil fields need adopt not kill-job environmental protection operation technique.At present, the down-hole control device that adopts during water injection well environmental protection operation mainly is the oil pipe controller, and this oil pipe controller is made up of seating nipple and blanking plug, when removing water injection string, blanking plug is devoted oneself to work in the tube, stop up the oil pipe internal channel of water injection string, prevent that well liquid from spraying in oil pipe.When finish remove the water injection string operation after, be lowered to special-purpose fishing tool from oil pipe at well head blanking plug salvaged in seating nipple.Utilize this device to exist packer, injection well downhole flow regulator to pour out the problem of difficulty, tubing string is scurried on taking place easily, has uneasy hidden danger.
The utility model content:
Exist packer, injection well downhole flow regulator to pour out the deficiency of scurrying phenomenon in difficulty and the easy generation of tubing string in order to overcome existing oil pipe controller, the utility model provides a kind of not kill-job of water injection well environmental protection operation hydraulic control on-off connector, this not kill-job of water injection well environmental protection operation hydraulic control on-off connector is not only poured out easily and tubing string is difficult for taking place scurrying phenomenon, and has convenient, the safe and reliable characteristics of uncoupling.
The technical solution of the utility model is: not kill-job of water injection well environmental protection operation hydraulic control on-off connector comprises top connection, be connected with central tube and shell body inside and outside the lower end of top connection respectively, the upper end is equipped with piston in the ring cavity between central tube and shell body, on the inside and outside wall of piston, sealing ring is housed, on the central tube of corresponding piston upper end pressure transmission hole is arranged, be equipped with sealing drum in the piston lower end, there is sealing ring outer wall upper end at sealing drum, be externally connected with the low pressure chamber joint ring at the sealing drum inner central tube, on the inside and outside wall of low pressure chamber joint ring, all be equipped with sealing ring, lower end at sealing drum and low pressure chamber joint ring is equipped with the slide block positioning sleeve, in the slide block positioning sleeve take-up housing is arranged, be connected with slide block on the take-up housing, be surrounded with W shape slideway on the central tube outer wall of slide block correspondence, the take-up housing lower end pushes away bearing by spring and is connected with the spring pushing cylinder, be with back-moving spring on the spring pushing cylinder inner central tube, spring pushing cylinder lower end is connected with the lock tube seat, lock tube seat outer lower end is connected with the lock tube that the lower end is a reducing, the central tube lower end is connected with the lock dog seat, the lower end is connected with the uncoupling head by lock dog in the lock dog seat, and is fluted on the uncoupling head of lock dog correspondence.
The utlity model has following beneficial effect: this not kill-job of water injection well environmental protection operation hydraulic control on-off connector is owing to take such scheme, by suppressing at well head, the piston of this on-off connector is being with the slide block compression reseting spring, is being with lock tube seat and lock tube to move downward under the differential pressure action of low pressure chamber.Lock tube is in the position of disengagement, so this moment, lock dog discharged the uncoupling head.Or lock dog stretches out in the groove that is stuck in the uncoupling head pinning uncoupling head under the effect of lock tube thrust.This not kill-job of water injection well environmental protection operation hydraulic control on-off connector is not only poured out to reach easily in the difficult generation of tubing string and is scurried phenomenon thus, and has convenient, the safe and reliable characteristics of uncoupling.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-top connection among the figure, 2-central tube, 3-shell body, 4-piston, the 5-sealing ring, 6-pressure transmission hole, 7-sealing drum, 8～low pressure chamber joint ring, 9-slide block positioning sleeve, 10-take-up housing, 11-slide block, 12-slideway, the 13-spring pushes away bearing, 14-spring pushing cylinder, 15-back-moving spring, 16-lock tube seat, 17-lock tube, 18-lock dog seat, the 19-lock dog, 20-uncoupling head, 21-groove.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this not kill-job of water injection well environmental protection operation hydraulic control on-off connector comprises top connection 1, be connected with central tube 2 and shell body 3 inside and outside the lower end of top connection 1 respectively, the upper end is equipped with piston 4 in the ring cavity of 3 of central tube 2 and shell bodies, sealing ring 5 is housed on the inside and outside wall of piston 4, on the central tube 2 of corresponding piston 4 upper ends pressure transmission hole 6 is arranged, be equipped with sealing drum 7 in piston 4 lower ends, there is sealing ring 5 outer wall upper end at sealing drum 7, be externally connected with low pressure chamber joint ring 8 at sealing drum 7 inner central tubes 2, on the inside and outside wall of low pressure chamber joint ring 8, all be equipped with sealing ring 5, lower end at sealing drum 7 and low pressure chamber joint ring 8 is equipped with slide block positioning sleeve 9, take-up housing 10 is arranged in the slide block positioning sleeve 9, be connected with slide block 11 on the take-up housing 10, be surrounded with W shape slideway 12 on central tube 2 outer walls of slide block 11 correspondences, take-up housing 10 lower ends push away bearing 13 by spring and are connected with spring pushing cylinder 14, be with back-moving spring 15 on spring pushing cylinder 14 inner central tubes 1, spring pushing cylinder 14 lower ends are connected with lock tube seat 16, lock tube seat 16 outer lower ends are connected with the lock tube 17 that the lower end is a reducing, central tube 2 lower ends are connected with lock dog seat 18, lower ends are connected with uncoupling head 20 by lock dog 19 in the lock dog seat 18, on the uncoupling head 20 of lock dog 19 correspondences fluted 21.
Claims (1)
1. not kill-job of water injection well environmental protection operation hydraulic control on-off connector, comprise top connection (1), it is characterized in that: be connected with central tube (2) and shell body (3) inside and outside the lower end of top connection (1) respectively, the upper end is equipped with piston (4) in the ring cavity between central tube (2) and shell body (3), sealing ring (5) is housed on the inside and outside wall of piston (4), on the central tube (2) of corresponding piston (4) upper end pressure transmission hole (6) is arranged, be equipped with sealing drum (7) in piston (4) lower end, there is sealing ring (5) outer wall upper end at sealing drum (7), be externally connected with low pressure chamber joint ring (8) at sealing drum (7) inner central tube (2), on the inside and outside wall of low pressure chamber joint ring (8), all be equipped with sealing ring (5), lower end at sealing drum (7) and low pressure chamber joint ring (8) is equipped with slide block positioning sleeve (9), take-up housing (10) is arranged in the slide block positioning sleeve (9), be connected with slide block (11) on the take-up housing (10), be surrounded with W shape slideway (12) on central tube (2) outer wall of slide block (11) correspondence, take-up housing (10) lower end pushes away bearing (13) by spring and is connected with spring pushing cylinder (14), be with back-moving spring (15) on spring pushing cylinder (14) inner central tube (1), spring pushing cylinder (14) lower end is connected with lock tube seat (16), lock tube seat (16) outer lower end is connected with the lock tube that the lower end is a reducing (17), central tube (2) lower end is connected with lock dog seat (18), the interior lower end of lock dog seat (18) is connected with uncoupling head (20) by lock dog (19), and the uncoupling head (20) that lock dog (19) is corresponding is gone up fluted (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201549083U CN201110163Y (en) | 2007-07-18 | 2007-07-18 | Ir-kill-job environment protection operation fluid pressure control uncoupling machine for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201549083U CN201110163Y (en) | 2007-07-18 | 2007-07-18 | Ir-kill-job environment protection operation fluid pressure control uncoupling machine for water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110163Y true CN201110163Y (en) | 2008-09-03 |
Family
ID=39894693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201549083U Expired - Fee Related CN201110163Y (en) | 2007-07-18 | 2007-07-18 | Ir-kill-job environment protection operation fluid pressure control uncoupling machine for water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110163Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434136A (en) * | 2011-11-10 | 2012-05-02 | 西南石油大学 | Electric pump oil production positive water injection integral pipe column and application method thereof |
| CN102828731A (en) * | 2012-09-20 | 2012-12-19 | 长春大吉油田工程技术有限公司 | Oil field water injection well dual-pressure cavity anti-blowout operation technology |
| CN104213859A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Hanging device for controlling release through hydraulic pressure difference and release controlling method thereof |
| CN111734318A (en) * | 2020-06-30 | 2020-10-02 | 合力（天津）能源科技股份有限公司 | Multifunctional hydraulic safety device for oil pipe |
-
2007
- 2007-07-18 CN CNU2007201549083U patent/CN201110163Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434136A (en) * | 2011-11-10 | 2012-05-02 | 西南石油大学 | Electric pump oil production positive water injection integral pipe column and application method thereof |
| CN102828731A (en) * | 2012-09-20 | 2012-12-19 | 长春大吉油田工程技术有限公司 | Oil field water injection well dual-pressure cavity anti-blowout operation technology |
| CN102828731B (en) * | 2012-09-20 | 2015-02-04 | 长春大吉油田工程技术有限公司 | Oil field water injection well dual-pressure cavity anti-blowout operation technology |
| CN104213859A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Hanging device for controlling release through hydraulic pressure difference and release controlling method thereof |
| CN111734318A (en) * | 2020-06-30 | 2020-10-02 | 合力（天津）能源科技股份有限公司 | Multifunctional hydraulic safety device for oil pipe |
| CN111734318B (en) * | 2020-06-30 | 2022-01-18 | 合力（天津）能源科技股份有限公司 | Multifunctional hydraulic safety device for oil pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20110718 |