CN2610070Y - Pull-up down-pass tubing anchor - Google Patents
Pull-up down-pass tubing anchor Download PDFInfo
- Publication number
- CN2610070Y CN2610070Y CN 03242866 CN03242866U CN2610070Y CN 2610070 Y CN2610070 Y CN 2610070Y CN 03242866 CN03242866 CN 03242866 CN 03242866 U CN03242866 U CN 03242866U CN 2610070 Y CN2610070 Y CN 2610070Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- pin
- model
- utility
- 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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Abstract
The utility model relates to a lifting and offloading oil pipe anchor relating to oil well operation, which mainly solves the problem of prior oil pipe anchor being low in success rate and easy to cause well accidents. The utility model is characterized in that a central tube (9) upper outer surface is symmetrically provided with indent axial direction orbit grooves (11), a central tube (9) on the opening (12) of the corresponding orbit groove (11) is also provided with axial direction grooves (13), the central tube (9) under an adjusting machine (6) is fixed with a pin (7) coordinating with the orbit grooves (11,13), then the pin is fixed on the adjusting machine (6) by a holding ring (8) locking the pin (7). The utility model is of high success rate, which is not easy to cause well accident and saves cost.
Description
Technical field: the utility model relates to the used instrument of oilfield downhole operation, puts on especially and puts the formula tubing anchor.
Background technology: in the manufacturing process of screw pump oil production, the down-hole grappling of screw pump is because its structural reason exists the frequent obscission of oil pipe.From overlooking the well head direction, rotor clockwise rotates, friction between rotor and the stator makes stator produce clockwise active force, this power is shackle to oil pipe, so screw pump is not when using tubing anchor or tubing anchor to lose efficacy, screw pump stator will clockwise rotate under the effect of rotor frictional force, and the carrying torque is little, causes oil pipe to come off at last.Therefore say that tubing anchor plays the effect of stablizing oil pipe when screw pump underground work.And the tubing anchor success rate of using at present is low, easily causes down-hole accident, increases cost, also is unfavorable for safety operation simultaneously.
The utility model content: in order to overcome the low deficiency that causes down-hole accident easily of existing tubing anchor success rate, the utility model provides to put on a kind of puts the formula tubing anchor, and this tubing anchor success rate height is not easy to cause down-hole accident.The technical solution adopted in the utility model is: put the formula tubing anchor of putting on this and contain cone, lower contact, central tube, centralizer and slips, central tube outer surface of upper symmetry is milled with zigzag and axial trajectory groove, and is milled with axial groove on the central tube of the opening part of respective carter groove simultaneously; Fixing pin and rail groove match on the central tube under the centralizer, are fixed on the centralizer after blocking pin with filler ring then.The beneficial effect that the utlity model has: carry oil pipe on the ground, the drive cone is up along rail groove is up for the pin on the centralizer, and slips is in rounding state; When sitting card, transfer tubing string, it is descending that central tube drives cone, and slips is opened gradually, and slips was in to strut and sat the card state this moment, was sitting in securely on the internal surface of sleeve pipe up to slips, and the success rate height is not easy to cause down-hole accident, saves cost.
Description of drawings: accompanying drawing 1 structure cut-away view of the present utility model;
Accompanying drawing 2 is outward appearance diagrammatic sketch of the central tube 9 in the accompanying drawing 1;
Accompanying drawing 3 is expansion diagrammatic sketch of accompanying drawing 2.
The specific embodiment: below in conjunction with accompanying drawing will the utility model is described in further detail:
By accompanying drawing 1 in conjunction with the accompanying drawings shown in 2,3, put the formula tubing anchor of putting on being somebody's turn to do and contain cone 1, lower contact 10, central tube 9, centralizer 6 and slips 2, lower contact 10 connects instrument under the pump, cone 1 connects oil pipe, cone 1 is fixed on the central tube 9 by release pin, and slips 2 upper inside surface slide with cone 1 male cone (strobilus masculinus) and cooperate, and the some claws of one-tenth spaced apart, in each claw, radially be provided with spring, and slips 2 is fixed by slip spider 4; And central tube 9 outer surface of upper symmetries are milled with zigzag and axial trajectory groove 11, and are milled with axial groove 13 simultaneously on the central tube 9 of the opening part 12 of respective carter groove 11; Fixing pin 7 matches with rail groove 11 on the central tube under the centralizer 69, is fixed on the centralizer 6 after blocking pin 7 with filler ring 8 then; And the central tube 9 external fixation wiper blocks 5 between filler ring 8 and the slip spider 4, and in the wiper block 5 stage clip is arranged.
When reality is used, pin 7 must be placed the B point place (being commonly called as the dead point) of rail groove 11 before this tubing anchor uses, this moment, slips 2 overlapped with cone 1, and slips 2 is in rounding state; When sitting card, the upper lifting pipe post, because the frictional resistance effect between wiper block 5 and the sleeve pipe, pin 7 keeps motionless, and central tube 9 and wiper block 5 relative moving up and down, pin 7 can be slided along rail groove 11 or 13, and pin 7 just runs to the E point from the B point, under rubbing action between wiper block 5 and the sleeve pipe, it is descending that central tube 9 drives cone 1, slips 2 is opened gradually, and slips 2 was in to strut and sat the card state this moment, was sitting on the internal surface of sleeve pipe securely up to slips 2, slips 2 and cone 1 relative fixed, the success rate height is not easy to cause down-hole accident, saves cost.In the time of need disanchoring, on put forward cone 1, slips 2 and cone 1 are broken away from, support forces lose in the slips 2, slips 2 breaks away from sleeve pipe, realizes disanchoring, and is very convenient.
Claims (1)
1, a kind of relate to oilfield downhole operation on put and put the formula tubing anchor, contain cone (1), lower contact (10), central tube (9), centralizer (6) and slips (2), it is characterized in that: central tube (9) outer surface of upper symmetry is milled with zigzag and axial trajectory groove (11), and is milled with axial groove (13) simultaneously on the central tube (9) of the opening part (12) of respective carter groove (11); Central tube (9) under centralizer (6) is gone up fixing pin (7) and is matched with rail groove (11,13), is fixed on the centralizer (6) after using filler ring (8) to block pin (7) then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242866 CN2610070Y (en) | 2003-04-02 | 2003-04-02 | Pull-up down-pass tubing anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242866 CN2610070Y (en) | 2003-04-02 | 2003-04-02 | Pull-up down-pass tubing anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2610070Y true CN2610070Y (en) | 2004-04-07 |
Family
ID=34168869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03242866 Expired - Fee Related CN2610070Y (en) | 2003-04-02 | 2003-04-02 | Pull-up down-pass tubing anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2610070Y (en) |
-
2003
- 2003-04-02 CN CN 03242866 patent/CN2610070Y/en not_active Expired - Fee Related
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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 |