CN2734979Y - Rotary eccentric tubing anchor - Google Patents
Rotary eccentric tubing anchor Download PDFInfo
- Publication number
- CN2734979Y CN2734979Y CNU2004200960648U CN200420096064U CN2734979Y CN 2734979 Y CN2734979 Y CN 2734979Y CN U2004200960648 U CNU2004200960648 U CN U2004200960648U CN 200420096064 U CN200420096064 U CN 200420096064U CN 2734979 Y CN2734979 Y CN 2734979Y
- Authority
- CN
- China
- Prior art keywords
- eccentric
- centralizer body
- central tube
- tubing anchor
- slips
- 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
The utility model relates to a rotary eccentric tubing anchor which mainly solves the problems of the inconvenient test and high test cost in existing tubing anchors. The rotary eccentric tubing anchor is characterized in that a centralizer body (2) is provided with an eccentric hole (3); a central tube (1) is arranged inside the eccentric hole (3); a slips (4) and a friction block (5) are both connected on the eccentric side of the centralizer body (2). The rotary eccentric tubing anchor can realize the underground test; no operation is needed during operation, and the test cost is low.
Description
Technical field:
The utility model relates to used downhole tool in the oil recovery field, oil field, especially rotary eccentric oil pipe anchor.
Background technology:
In oil recovery field, oil field, play about tubing string during oil pumping machine oil pumping, this moment, tubing string was easy to disconnected taking off under the effect of fluctuating load, in order to prevent that above-mentioned phenomenon from taking place, usually on the tubing string above the oil well pump, connect tubing anchor and carry out the grappling tubing string, make it that play up and down not take place, and then avoid its disconnected taking off.Tubing anchor generally is divided into two kinds of machinery card dentition formula and hydraulic pressure packing element formulas, wherein machinery card dentition formula tubing anchor cost is low, grappling is reliable, thereby this tubing anchor is generally adopted, because the central tube of this tubing anchor is positioned at and sets the cutting ferrule center, when the annular space between down-hole central tube and the sleeve pipe is tested, tester can't be lowered to, and can only carry out operation and propose to test behind the tubing anchor, has test inconvenience and the high problem of testing expense.
The utility model content:
In order to overcome existing tubing anchor test inconvenience and the high deficiency of testing expense, the utility model provides a kind of rotary eccentric oil pipe anchor, and this rotary eccentric oil pipe anchor can be realized downhole testing, does not need operation during operation, and testing expense is low.
The technical solution of the utility model is: this rotary eccentric oil pipe anchor comprises central tube and centralizer body, be connected with slips and brake pad on the centralizer body, the central tube upper cone that lower end and slips touch mutually that is threaded, centralizer body has eccentric orfice, central tube places in the eccentric orfice, and slips and brake pad all are connected the centralizer body eccentric side.
The beneficial effect that the utlity model has is: owing to adopt with such scheme, centralizer body has eccentric orfice, central tube places in the eccentric orfice, the tester annular space that can enter between central tube and the sleeve pipe by another lateral deviation hole of centralizer body eccentric orfice is tested like this, solve existing tubing anchor and intercepted the problem that to test, proposed tubing anchor without operation when testing, convenient test, saved the expense of bringing because of operation, required expense is low.
Description of drawings:
Accompanying drawing 1 is the utility model structure sectional view.
1-central tube among the figure, 2-centralizer body, 3-eccentric orfice, 4-slips, 5-brake pad, 6-upper cone.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, this rotary eccentric oil pipe anchor comprises central tube 1 and centralizer body 2, be connected with slips 4 and brake pad 5 on the centralizer body 2, central tube 1 upper cone 6 that lower end and slips 4 touch mutually that is threaded, centralizer body 2 has eccentric orfice 3, central tube 1 places in the eccentric orfice 3, and slips 4 and brake pad 5 all are connected centralizer body 2 eccentric sides.The center of rotation pipe 1 in use, because the frictional force of brake pad 5 and sleeve pipe exists, and central tube 1 rotation and centralizer body 2 does not change relatively, upper cone 6 produces relative motions with slips 4 like this, thereby makes slips 4 crowded expanding finish grappling on internal surface of sleeve pipe.When test, the annular space that tester can enter between central tube 1 and the sleeve pipe by eccentric orfice 3 another lateral deviation holes of centralizer body 2 is tested, solve existing tubing anchor and intercepted the problem that to test, without operation tubing anchor is proposed when testing, convenient test, saved the expense of bringing because of operation, required expense is low.
Claims (1)
1, a kind of rotary eccentric oil pipe anchor, comprise central tube (1) and centralizer body (2), be connected with slips (4) and brake pad (5) on the centralizer body (2), central tube (1) upper cone (6) that lower end and slips (4) touch mutually that is threaded, it is characterized in that: centralizer body (2) has eccentric orfice (3), central tube (1) places in the eccentric orfice (3), and slips (4) and brake pad (5) all are connected centralizer body (2) eccentric side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200960648U CN2734979Y (en) | 2004-09-30 | 2004-09-30 | Rotary eccentric tubing anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200960648U CN2734979Y (en) | 2004-09-30 | 2004-09-30 | Rotary eccentric tubing anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2734979Y true CN2734979Y (en) | 2005-10-19 |
Family
ID=35264855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200960648U Expired - Fee Related CN2734979Y (en) | 2004-09-30 | 2004-09-30 | Rotary eccentric tubing anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2734979Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824981A (en) * | 2010-04-29 | 2010-09-08 | 中国石油化工集团公司 | Test string for stimulating produced liquid section of pumping unit |
| CN105781460A (en) * | 2016-03-21 | 2016-07-20 | 王俊德 | Bidirectional automatic anchor |
-
2004
- 2004-09-30 CN CNU2004200960648U patent/CN2734979Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824981A (en) * | 2010-04-29 | 2010-09-08 | 中国石油化工集团公司 | Test string for stimulating produced liquid section of pumping unit |
| CN101824981B (en) * | 2010-04-29 | 2012-09-05 | 中国石油化工集团公司 | Test string for stimulating produced liquid section of pumping unit |
| CN105781460A (en) * | 2016-03-21 | 2016-07-20 | 王俊德 | Bidirectional automatic anchor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |