CN2660098Y - Integrated slip type tubing anchor - Google Patents
Integrated slip type tubing anchor Download PDFInfo
- Publication number
- CN2660098Y CN2660098Y CN 200320125133 CN200320125133U CN2660098Y CN 2660098 Y CN2660098 Y CN 2660098Y CN 200320125133 CN200320125133 CN 200320125133 CN 200320125133 U CN200320125133 U CN 200320125133U CN 2660098 Y CN2660098 Y CN 2660098Y
- Authority
- CN
- China
- Prior art keywords
- slip
- central tube
- casing
- screw thread
- sleeved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Earth Drilling (AREA)
Abstract
An overall slip tubing anchor relates to an oil well downhole tool; this tool is characterized in that the tool consists of a joint, a central pipe and a lower joint; a slip is fit over the central pipe and the overall slip is fit over a slip sleeve; a centralizer assembly and a spring lining are fit over the central pipe in turn and the spring lining is equipped with a spring and a lower clutch sleeve; a pin is installed on the lower clutch casing by screw threads. By adopting an overall slip, when the oil pipe is in work, the contact between the slip and the casing is basically even, in this way, the casing stress is comparatively even and the casing is hard to be transformed and damaged; the casing can be protected. The utility model is used in oil well pipe.
Description
Technical field
The utility model relates to a kind of oil well downhole tool.
Background technology
In crude oil is produced,, need different tubing anchors be installed at present, in order to fixing oil pipe in the oil pipe tubing string lower end of oil well according to different requirements.The anchor fluke of present used tubing anchor is split-type or block structure, and it contacts with sleeve pipe is just local in use, makes the sleeve pipe local pressure produce local distortion, and sleeve pipe is damaged, and causes damage.
The utility model content
The purpose of this utility model provides a kind of whole slip-type tubing anchor, and it is more even to use it to contact with sleeve pipe, can alleviate the damage to sleeve pipe.
Technical solution of the present utility model is to realize like this, a kind of whole slip-type tubing anchor, constitute by thread connection by top connection, central tube, lower contact together, has U type length groove on the central tube, its special character is that the lower end that is installed in top connection by screw thread is overlapped in (1) connection, and slip sleeve is sleeved on the central tube, its upper end is installed in and is communicated with in the cover, and slip sleeve is contained on the slip sleeve.(2) the centralizer assembly is sleeved on the central tube, and its upper end links together by screw thread and last cap, and lower end and last clutch cover link together.(3) spring bushing is sleeved on the central tube, and its upper end is contained in the clutch cover, and the lower end is connected by screw thread and lining cap.(4) spring and following clutch cover are housed on spring bushing, pin is installed in down on the clutch cover by screw thread.
Usefulness of the present utility model is, is whole slips because this tubing anchor adopts, when tubing anchor is in running order; contacting of slips and sleeve pipe is uniform basically; therefore make the stressed also relatively more even of sleeve pipe, sleeve pipe is difficult for deformed damaged, can protective casing.
Description of drawings
Accompanying drawing 1 is that structural representation is partly cutd open in part of the present utility model.
The specific embodiment
Top connection 1 links together by screw thread and central tube 6.Slip sleeve 7 is sleeved on the central tube 6, and its upper end is installed in and is communicated with in the cover 3, is communicated with cover 3 and is installed together by screw thread and top connection 1, and pin 2 is fixed them.Slips 9 is selected the whole slips assembly on the whole anchor packer for use, and slips 9 is contained on the slip sleeve 7, and pin 8 is installed on the slips 9, and its termination extend in the hole of slip sleeve 7.The lower end of slip sleeve 7 is contained in the cap 10, and centralizer assembly 11 is sleeved on the central tube 6, and its upper end and last cap 10 are by being threaded togather, and lower end and last clutch cover 12 are by being threaded togather.The lower surface of last clutch cover 12 has emboss pit, the upper end of lining 14 is installed in the clutch cover 12, following clutch cover 15 is sleeved on the lining 14, by pin 13 they are fixed together, the termination of pin 13 extend in the cannelure on the central tube, the upper surface of following clutch cover 15 has emboss pit, and following clutch cover 15 is meshing with each other together with last clutch cover 12.Spring 16 is enclosed within on the lining 14, and lining cap 17 is contained in lining 14 lower ends by screw thread.Lower contact 18 is installed in the lower end of central tube 6 by screw thread.
By the screw thread in top connection 1 and the lower contact 18, the installation of this tubing anchor is connected on the design attitude of oil well pipe, behind the G.I.H preposition, at well head rotation and following drain line, oil pipe then drives top connection 1, central tube 2, lower contact 18 rotations, and moves down, when the lower surface 4 that is communicated with cover 3 contacts with the upper surface 5 of slips 9,9 of slips serve as that axle begins rotation and seat is stuck on the sleeve pipe with pin 8, and slip insert contacts more equably with tube inner wall, realizes the oil pipe grappling.
Claims (4)
- Whole slip-type tubing anchor is made of by thread connection top connection (1), central tube (6), lower contact (18) together, has U type length groove on the central tube (6), it is characterized in that:1. be communicated with cover (3) and be installed in the lower end of top connection (1) by screw thread, slip sleeve (7) is sleeved on the central tube (6), and its upper end is installed in and is communicated with in the cover (3), and slips (9) is sleeved on the slip sleeve (7);
- 2. centralizer assembly (11) is sleeved on the central tube (6), and its upper end links together by screw thread and last cap (10), and lower end and last clutch cover (12) link together;
- 3. spring bushing (14) is sleeved on the central tube (6), and its upper end is contained in the clutch cover (12), and the lower end is connected by screw thread and lining cap (17);
- Spring (16) and following clutch cover (15) 4. are housed on spring bushing (14), and pin (13) is installed in down on the clutch cover (15) by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125133 CN2660098Y (en) | 2003-12-04 | 2003-12-04 | Integrated slip type tubing anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125133 CN2660098Y (en) | 2003-12-04 | 2003-12-04 | Integrated slip type tubing anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2660098Y true CN2660098Y (en) | 2004-12-01 |
Family
ID=34349176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320125133 Expired - Lifetime CN2660098Y (en) | 2003-12-04 | 2003-12-04 | Integrated slip type tubing anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2660098Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453755A (en) * | 2014-05-28 | 2015-03-25 | 刘庆敏 | One-way rotation locking device |
-
2003
- 2003-12-04 CN CN 200320125133 patent/CN2660098Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453755A (en) * | 2014-05-28 | 2015-03-25 | 刘庆敏 | One-way rotation locking device |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131204 Granted publication date: 20041201 |