CN202745839U - Coupling positioner - Google Patents
Coupling positioner Download PDFInfo
- Publication number
- CN202745839U CN202745839U CN 201220366183 CN201220366183U CN202745839U CN 202745839 U CN202745839 U CN 202745839U CN 201220366183 CN201220366183 CN 201220366183 CN 201220366183 U CN201220366183 U CN 201220366183U CN 202745839 U CN202745839 U CN 202745839U
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- China
- Prior art keywords
- piston
- wall
- connect
- central tube
- locating detent
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- Expired - Fee Related
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Abstract
The utility model discloses a coupling locator, be for realizing the separate zone water injection, the accurate location operation of separate zone fracturing well completion tubular column designs, mainly including the top connection of connecting piston sleeve and well tube, the piston of suit center tube, establish at piston and piston sleeve annular space internal spring, the centrum and the piston sheath of connecting the piston, the lower clutch of connecting piston sleeve and well tube down, lock joint center tube outer wall convex shoulder and connect the recovery piston of piston sleeve down, connect the locating pawl of retrieving the piston and connect the pressure spring etc. of locating pawl outer wall. The utility model discloses a hydraulic pressure promotes, makes the locating pawl open and fixes a position the operation. After the operation is completed, a dual mechanism of hydraulic release and pipe column lifting is adopted, the recovery of the positioning claw is ensured, well clamping accidents cannot be caused, the operation is reliable, and the operation efficiency and the construction quality are improved.
Description
Technical field
The utility model relates to a kind of collar locator, belongs to seperated layer water injection, separate stratum fracfturing completion tubular column field of locating technology.
Background technology
Magnetic orientation and machinery location are mainly adopted in the location of the completion tubular columns such as at present, the smaller seperated layer water injection of multiple zone interlamellar spacing, separate stratum fracfturing.Magnetic orientation device registration, but the testing time is long, complicated operation, expense is high; Mechanical positioner can be realized the accurate location of the downhole tools such as packer, but carries in the process in that operation is complete, and locator need to constantly overcome the resistance of casing coupling or need the pitching unfreezing, affects operating efficiency; If run into casing coupling damage or distortion are arranged, may cause underground tool string to trip out difficulty, work accident occurs.
Summary of the invention
The purpose of this utility model is to provide a kind of collar locator, and the deficiency that it can overcome existing positioner satisfies the accurately operation needs of location of the completion tubular columns such as the smaller seperated layer water injection of multiple zone interlamellar spacing, separate stratum fracfturing.
Concrete technical scheme of the present utility model is as follows:
The top connection lower end is connected with the upper piston cover of joint face sealing ring and is provided with the central tube in radial flow of liquid hole.The top connection below is suit piston central tube, that be provided with the top radial direction through hole, be provided with spring in the annular space between piston and piston bush, the joint face of piston and piston bush is provided with piston packing, and piston lower end outer wall connects centrum, and piston bush lower end outer wall connects the piston sheath.
The lower contact upper end connects lower piston cover and central tube, and the central tube bottom is provided with outer wall convex shoulder and lower radial flow of liquid hole.Reclaim piston snapping central tube outer wall convex shoulder lower surface, and connect the lower piston cover by shear pin.Reclaim piston upper end inwall and connect locating detent, the locating detent outer wall connects stage clip by pin, and locating detent upper inside wall and centrum outer wall are fitted.
The utility model is opened locating detent and is positioned operation by hydraulic drive.After operation is finished, adopt hydraulic pressure to discharge and the dual mechanism of upper lifting pipe post, guarantee that locating detent reclaims, can not cause card well accident to occur, operation is reliable, improves operating efficiency and construction quality.
Description of drawings
Fig. 1 is the collar locator structural representation.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
This collar locator is comprised of top connection 1, sealing ring 2, central tube 3, upper radial flow of liquid hole 4, piston 5, upper piston cover 6, spring 7, piston packing 8, piston sheath 9, cone 10, locating detent 11, stage clip 12, pin 13, lower piston cover 14, recovery piston 15, central tube outer wall convex shoulder 16, lower radial flow of liquid hole 17, shear pin 18 and lower contact 19:
Top connection 1 lower end external screw thread is connected with the upper piston cover 6 of joint face sealing ring 2, and internal thread is connected with the central tube 3 in radial flow of liquid hole 4.Top connection 1 below is suit piston 5 central tube 3, that be provided with the top radial direction through hole, be provided with spring 7 in the annular space that piston 5 and piston bush are 6, piston 5 is provided with piston packing 8 with the joint face of piston bush 6, piston 5 lower end outer wall threads connect centrum 10, and piston bush 6 lower end outer wall threads connect piston sheath 9.
The operating principle of collar locator is summarized as follows:
Upper and lower joint 1 directly is connected with oil pipe and other instruments by tubing thread with being connected; G.I.H, oil pipe connects flexible pipe and suppresses 5MPa, and through upper radial flow of liquid hole 4 and aim at its piston 5 top radial direction through hole, it is descending that pushing piston 5 drives centrums 10, and locating detent 11 is opened; Slowly the upper lifting pipe post shows that by well head putting forward load increases, to judge the position of down-hole collar locator; Dark according to school, casing coupling position, discharge hydraulic pressure, down-hole pressure 17 promotes to reclaim pistons 15 to drive locating detents 11 descending through lower radial flow of liquid hole, and locating detent 11 reclaims under stage clip 12 effects, in order to carry on the tubing string.If it is unsuccessful that hydraulic pressure discharges, but the upper lifting pipe post is cut off shear pin 18, reclaim locating detent 11; Adjust tubing string according to locator data again, downhole tool is located successfully.
Claims (1)
1. collar locator is characterized in that:
Top connection (1) lower end is connected with the upper piston cover (6) of joint face sealing ring (2) and is provided with the central tube (3) of radial flow of liquid hole (4); Top connection (1) below is suit central tube piston (3), that be provided with the top radial direction through hole (5), be provided with spring (7) in the annular space between piston (5) and piston bush (6), piston (5) is provided with piston packing (8) with the joint face of piston bush (6), piston (5) lower end outer wall connects centrum (10), and piston bush (6) lower end outer wall connects piston sheath (9);
Lower contact (19) upper end connects lower piston cover (14) and central tube (3), and central tube (3) bottom is provided with outer wall convex shoulder (16) and lower radial flow of liquid hole (17); Reclaim piston (15) snapping central tube (3) outer wall convex shoulder lower surface, and connect lower piston cover (14) by shear pin (18); Reclaim piston (15) upper end inwall and connect locating detent (11), locating detent (11) outer wall connects stage clip (12) by pin (13), and locating detent (11) upper inside wall and centrum (10) outer wall are fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366183 CN202745839U (en) | 2012-07-26 | 2012-07-26 | Coupling positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366183 CN202745839U (en) | 2012-07-26 | 2012-07-26 | Coupling positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745839U true CN202745839U (en) | 2013-02-20 |
Family
ID=47705256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220366183 Expired - Fee Related CN202745839U (en) | 2012-07-26 | 2012-07-26 | Coupling positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745839U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401491A (en) * | 2016-11-27 | 2017-02-15 | 无锡金顶石油管材配件制造有限公司 | Flexible petroleum pipe coupling |
| CN106678460A (en) * | 2016-11-27 | 2017-05-17 | 无锡金顶石油管材配件制造有限公司 | Flexible pipe coupling |
| CN107762435A (en) * | 2017-10-12 | 2018-03-06 | 中国海洋石油总公司 | A kind of hydraulic pressure positioning instrument being applied in pressure crack filling anti-sand operation |
| CN109113722A (en) * | 2018-08-07 | 2019-01-01 | 大庆市嘉钰机械制造有限公司 | A kind of oil field well depth measurement device and method |
| CN110439541A (en) * | 2019-08-21 | 2019-11-12 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Casing coupling positioner and positioning method based on friction positioning |
| CN110748336A (en) * | 2019-08-06 | 2020-02-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Magnetic signal control electromagnetic force driving mechanical positioner and method |
| CN119531757A (en) * | 2025-01-22 | 2025-02-28 | 中国石油集团科学技术研究院有限公司 | Retractable coupling positioner, positioning method, system and application |
-
2012
- 2012-07-26 CN CN 201220366183 patent/CN202745839U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401491A (en) * | 2016-11-27 | 2017-02-15 | 无锡金顶石油管材配件制造有限公司 | Flexible petroleum pipe coupling |
| CN106678460A (en) * | 2016-11-27 | 2017-05-17 | 无锡金顶石油管材配件制造有限公司 | Flexible pipe coupling |
| CN107762435A (en) * | 2017-10-12 | 2018-03-06 | 中国海洋石油总公司 | A kind of hydraulic pressure positioning instrument being applied in pressure crack filling anti-sand operation |
| CN109113722A (en) * | 2018-08-07 | 2019-01-01 | 大庆市嘉钰机械制造有限公司 | A kind of oil field well depth measurement device and method |
| CN109113722B (en) * | 2018-08-07 | 2022-02-25 | 大庆市嘉钰机械制造有限公司 | Oil field underground depth measuring device and method |
| CN110748336A (en) * | 2019-08-06 | 2020-02-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Magnetic signal control electromagnetic force driving mechanical positioner and method |
| CN110748336B (en) * | 2019-08-06 | 2024-01-23 | 中国石油天然气集团有限公司 | Magnetic signal control electromagnetic force driving mechanical positioner and method |
| CN110439541A (en) * | 2019-08-21 | 2019-11-12 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Casing coupling positioner and positioning method based on friction positioning |
| CN110439541B (en) * | 2019-08-21 | 2023-11-03 | 中国石油天然气集团有限公司 | Casing coupling positioner and positioning method by means of friction positioning |
| CN119531757A (en) * | 2025-01-22 | 2025-02-28 | 中国石油集团科学技术研究院有限公司 | Retractable coupling positioner, positioning method, system and application |
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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 |
Granted publication date: 20130220 Termination date: 20210726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |