CN201276996Y - Hydraulic anchor - Google Patents
Hydraulic anchor Download PDFInfo
- Publication number
- CN201276996Y CN201276996Y CNU2008201748005U CN200820174800U CN201276996Y CN 201276996 Y CN201276996 Y CN 201276996Y CN U2008201748005 U CNU2008201748005 U CN U2008201748005U CN 200820174800 U CN200820174800 U CN 200820174800U CN 201276996 Y CN201276996 Y CN 201276996Y
- Authority
- CN
- China
- Prior art keywords
- anchor
- anchor fluke
- fluke
- hole
- anchor body
- 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 - Fee Related
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- Piles And Underground Anchors (AREA)
Abstract
A hydraulic anchor comprises an anchor body, an anchor fluke and a spacer sleeve, wherein the anchor body is equipped with an anchor fluke hole, a reducing shoulder is arranged in the anchor fluke hole, the anchor fluke is mounted in the anchor fluke hole from the inside of the anchor body, the anchor fluke is engaged with the anchor fluke hole, the anchor fluke moves from one end face of the anchor fluke to the reducing shoulder, and the spacer sleeve mounted inside the anchor body is equipped with a communicating hole. The lower portion of the spacer sleeve is equipped with a pressing sleeve, and the pressing sleeve is in threaded connection with the lower portion of the anchor body. The reducing shoulder is arranged in the anchor fluke hole, the anchor fluke is mounted in the anchor fluke hole from the inside of the anchor body, the anchor body is internally equipped with the spacer sleeve, and the anchor fluke just can move in a certain range without dropping off, thereby the hydraulic anchor is reliable in use, can prevent the anchor fluke from dropping to jam tubing strings, and further avoids engineering accidents in oil wells.
Description
One, technical field
The utility model belongs to the pipe tubing string anchoring device that oil well is used, particularly a kind of hydraulic anchor.
Two, background technology
During oil well oil-pumping, fluid column is loaded with on oil pipe and sucker rod to change with the oil pumper up-down stroke and replace transfers, makes oil pipe elongation shortening, causes the pump efficiency of pumping low, the oil pipe well of threading off.For fear of the appearance of the problems referred to above, hydraulic anchor has been used at the scene, is used for fixing oil pipe, prevents that oil pipe is flexible.When the oil-water well technology that has is constructed, cause downhole tool damages such as packer, also will connect hydraulic anchor at the instrument first line of a couplet in order to prevent the tubing string play.But the anchor fluke on the existing hydraulic anchor is outside in adorned, and can deviate from during use, causes that the anchor fluke card keeps a grip on, and causes the oil well engineering accident.
Three, summary of the invention
The purpose of this utility model is a kind of hydraulic anchor of design, makes the anchor fluke on its hydraulic anchor can be spacing, prevents the anchor fluke card tubing string that comes off.
The purpose of this utility model is achieved in that by anchor body, anchor fluke, interstage sleeve to be formed, the anchor fluke hole is arranged on the anchor body, the reducing shoulder is arranged in the anchor fluke hole, anchor fluke is packed in the anchor body in the anchor fluke hole, anchor fluke has with the anchor fluke hole and cooperates, the moving range of anchor fluke be an end face of anchor fluke to the reducing shoulder, interstage sleeve is installed in the inside of anchor body, and linked hole is arranged on the interstage sleeve.
Gland is arranged at the interstage sleeve bottom, and gland connects with anchor body lower thread.
The beneficial effects of the utility model are: the reducing shoulder is arranged in the anchor fluke hole, and anchor fluke is packed in the anchor body in the anchor fluke hole, in the anchor body interstage sleeve is arranged, anchor fluke can only move within the specific limits, can not come off, and uses reliable, can prevent the anchor fluke card tubing string that comes off, avoid oil well generation engineering accident.
Four, description of drawings
Accompanying drawing is an assembling drawing of the present utility model.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Form by anchor body 1, anchor fluke 2, interstage sleeve 6, anchor fluke hole 3 is arranged on the anchor body 1, reducing shoulder 4 is arranged in the anchor fluke hole 3, pack in the anchor body 13 li in anchor fluke hole of anchor fluke 2, anchor fluke 2 has with anchor fluke hole 3 and cooperates, the moving range of anchor fluke 2 be an end face 7 of anchor fluke 2 to reducing shoulder 4, interstage sleeve 5 is installed in the inside of anchor body 1, and linked hole 6 is arranged on the interstage sleeve 5.Gland 8 is arranged at interstage sleeve 5 bottoms, and gland 8 connects with anchor body 1 lower thread.
Spring among the figure, press strip sealing ring, screw are identical with existing hydraulic anchor, and anchor fluke 2 external surfaces have teeth, can project to the external surface of anchor body 1, and are also identical with existing hydraulic anchor.
On oil well pump, when the pump upward pressure raise, pressure was released anchor fluke 2, is anchored on the oil well casing, and oil pipe is maintained static under the utility model, avoided the flexible adverse consequences that causes of oil pipe.When not needing grappling, the oil well pressure balance, anchor fluke is regained under spring action, and tubing string loses grappling, tubing string can be proposed smoothly.
The utility model also can be connected on the packer, under pressure, packer work, hydraulic anchor grappling simultaneously maintains static packer, finishes the operation of oil well different process.
Claims (2)
1, a kind of hydraulic anchor, form by anchor body (1), anchor fluke (2), interstage sleeve (6), it is characterized in that: anchor fluke hole (3) is arranged on the anchor body (1), reducing shoulder (4) is arranged in the anchor fluke hole (3), anchor fluke (2) lining, anchor fluke hole (3) of packing in the anchor body (1), anchor fluke (2) have with anchor fluke hole (3) and cooperate, and the moving range of anchor fluke (2) is that the end face (7) of anchor fluke (2) is to reducing shoulder (4), interstage sleeve (5) is installed in the inside of anchor body (1), and linked hole (6) is arranged on the interstage sleeve (5).
2, a kind of hydraulic anchor according to claim 1 is characterized in that: gland (8) is arranged at interstage sleeve (5) bottom, and gland (8) connects with anchor body (1) lower thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201748005U CN201276996Y (en) | 2008-11-06 | 2008-11-06 | Hydraulic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201748005U CN201276996Y (en) | 2008-11-06 | 2008-11-06 | Hydraulic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201276996Y true CN201276996Y (en) | 2009-07-22 |
Family
ID=40894582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201748005U Expired - Fee Related CN201276996Y (en) | 2008-11-06 | 2008-11-06 | Hydraulic anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201276996Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913161A (en) * | 2012-11-16 | 2013-02-06 | 西安鼎盛石油科技有限责任公司 | Straightening and anchoring device applied to horizontal open hole well |
-
2008
- 2008-11-06 CN CNU2008201748005U patent/CN201276996Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913161A (en) * | 2012-11-16 | 2013-02-06 | 西安鼎盛石油科技有限责任公司 | Straightening and anchoring device applied to horizontal open hole well |
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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: 20090722 Termination date: 20111106 |