CN202755930U - Drift diameter type location device - Google Patents
Drift diameter type location device Download PDFInfo
- Publication number
- CN202755930U CN202755930U CN 201220244471 CN201220244471U CN202755930U CN 202755930 U CN202755930 U CN 202755930U CN 201220244471 CN201220244471 CN 201220244471 CN 201220244471 U CN201220244471 U CN 201220244471U CN 202755930 U CN202755930 U CN 202755930U
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- CN
- China
- Prior art keywords
- location
- groove
- short section
- seat
- slips
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a drift diameter type location device which comprises a tubular short section. An annular groove is arranged on the inner circumferential wall of the tubular short section, a right-angle inner wall is arranged at the lower end of the annular groove, a conical inner wall is arranged at the upper end of the annular groove, a location seat with connection threads is arranged in the tubular short section, grooves are symmetrically arranged on the outer circumferential face of the location seat, each groove is respectively provided with a location slip reset through a spring, two ends of each location slip is clamped in the corresponding groove through press covers installed on two sides of the corresponding groove of the location seat, and the shape of the location slips is matched with that of the annular groove. When the device is used, the tubular short section is connected with a sleeve in series, the location seat is connected with an inner pipe in series, and the location seat is placed in the sleeve and begins to be put downwards. When the location seat passes through the grooves on the tubular short section, the location slips are bounced out by the spring to be clamped in the grooves to achieve accurate location. After cement filling operation is finished, the location seat is lifted, the location slips retreat automatically, and an inner tube column for well fixing is lifted out.
Description
Technical field
The utility model relates to the down-hole string positioner that a kind of field produces is used, particularly latus rectum formula positioner.
Background technology
At present, positioner is mainly used in screen casing crest water flooding mud and strides in the middle of the well-completing process of oil-bearing stratum flooding mud, and in the selective completion technique.Positioning seat in the positioner is connected with the interior packer of pipe, constant pressure switch and oil pipe or drilling rod, and orientation spool is connected with external packer of pipe, sizing collar and bunch tube, accurately locates in the middle of work progress, finishes cementing job by interior tubing string.Oil pipe or the drilling rod packer in the swollen tube sealing that builds the pressure first, open constant pressure switch, then by the swollen sealing tube external packer of constant pressure switch transmission of pressure with open the sizing collar circulation port, behind the cemented up slurry, build the pressure and close the sizing collar circulation port, finish screen casing bottom water injection mud and stride the operation of oil-bearing stratum flooding mud, and do not stay cement plug in the pipe, the later stage does not need drilling out.
The normal positioner that uses has two kinds: the one, at casing nipple alignment pin is housed, and after cementing finishes, transfer tubing string in the well cementation, sever alignment pin, alignment pin is fallen the shaft bottom; The 2nd, be provided with step at casing nipple, after tubing string is hampered in the well cementation, illustrate to arrive design attitude, this in 2 positioner all have certain risk: the former is owing to transferring the tubing string excessive velocities, be easy to sever in advance alignment pin, the interior tubing string that causes cementing the well can't be located; The latter is because casing nipple is provided with step, recovers the oil in the later stage, in the well workover process, causes to transfer Tubing During Running and be hampered, and increases extra-pay.
Summary of the invention
The purpose of this utility model is to provide a kind of latus rectum formula positioner, and it is simple in structure, can solve the difficulty of interior tubing string location, can accurately locate, can keep again with run through casing size always, be conducive to follow-up construction.
The purpose of this utility model is to realize like this, a kind of latus rectum formula positioner, comprise the tubulose pipe nipple, one annular recess is being set on the internal perisporium of tubulose pipe nipple, the lower end of annular recess is the right angle inwall, the upper end of annular recess is the circular cone inwall, the tubulose pipe nipple is built-in with a positioning seat with connecting thread, be symmetrical arranged groove on the outer peripheral face of positioning seat, the location slips that passes through spring reset is being set respectively in the groove, the two ends of location slips are installed in the groove by the gland that is installed in positioning seat groove both sides, and the profile of location slips and the shape of annular recess are complementary.
During use, the tubulose pipe nipple is connected with bunch tube, and positioning seat and inner tube series winding connects, and positioning seat is put into sleeve pipe begin to transfer, and when positioning seat during by the groove on the tubulose pipe nipple, the location slips is ejected by spring, is stuck in the groove, realizes accurately location; After cementing job is finished, on carry positioning seat, location slips automatic retraction proposes tubing string in the well cementation.The utility model 1, simple in structure, unique, safe and reliable: positioning wedged block is capable of expansion and contraction, can accurately locate.2, bearing capacity is high: positioner can support the weight of 200KN.3, latus rectum maintenance and run through casing size are conducive to follow-up construction always.4, the positioning seat in the latus rectum formula positioner is reusable.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is that master of the present utility model looks the semi-section structural representation.
The specific embodiment
A kind of latus rectum formula positioner as shown in Figure 1, comprises tubulose pipe nipple 1, and an annular recess 4 is being set on the internal perisporium of tubulose pipe nipple 1, and the lower end of annular recess 4 is the right angle inwall, and the upper end of annular recess 4 is the circular cone inwall.Tubulose pipe nipple 1 is built-in with a positioning seat 2 with connecting thread, be symmetrical arranged groove on the outer peripheral face of positioning seat 2, the location slips 5 that resets by spring 6 is being set respectively in the groove, the two ends of location slips 5 are installed in the groove by the gland 3,7 that is installed in positioning seat 2 groove both sides, and the profile of location slips 5 and the shape of annular recess 4 are complementary.During use, tubulose pipe nipple 1 is connected with bunch tube, and positioning seat 2 connects with the inner tube series winding, positioning seat 2 is put into sleeve pipe begin to transfer, and when positioning seat 2 during by the groove 4 on the tubulose pipe nipple, location slips 5 is ejected by spring 6, is stuck in the groove 4, realizes accurately location; After cementing job is finished, on carry positioning seat 2, location slips 5 automatic retractions propose tubing string in the well cementation.
Claims (1)
1. latus rectum formula positioner, comprise the tubulose pipe nipple, it is characterized in that: an annular recess is being set on the internal perisporium of tubulose pipe nipple, the lower end of annular recess is the right angle inwall, the upper end of annular recess is the circular cone inwall, the tubulose pipe nipple is built-in with a positioning seat with connecting thread, be symmetrical arranged groove on the outer peripheral face of positioning seat, the location slips that passes through spring reset is being set respectively in the groove, the two ends of location slips are installed in the groove by the gland that is installed in positioning seat groove both sides, and the profile of location slips and the shape of annular recess are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220244471 CN202755930U (en) | 2012-05-29 | 2012-05-29 | Drift diameter type location device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220244471 CN202755930U (en) | 2012-05-29 | 2012-05-29 | Drift diameter type location device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755930U true CN202755930U (en) | 2013-02-27 |
Family
ID=47735117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220244471 Expired - Fee Related CN202755930U (en) | 2012-05-29 | 2012-05-29 | Drift diameter type location device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202755930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989384A (en) * | 2015-04-09 | 2015-10-21 | 中国石油集团西部钻探工程有限公司 | Spring sheet type collar locator |
-
2012
- 2012-05-29 CN CN 201220244471 patent/CN202755930U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989384A (en) * | 2015-04-09 | 2015-10-21 | 中国石油集团西部钻探工程有限公司 | Spring sheet type collar locator |
| CN104989384B (en) * | 2015-04-09 | 2018-06-05 | 中国石油集团西部钻探工程有限公司 | Spring-piece type collar locator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 834009, Tianchi South District, the Xinjiang Uygur Autonomous Region, Karamay 40-2-1 Patentee after: XINJIANG YONGSHENG ENERGY CO., LTD. Address before: 834009 the Xinjiang Uygur Autonomous Region Karamay City Baijiantan portal Road No. 100 Patentee before: Karamay Tallinn Petroleum Engineering Technology Services Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20210529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |