CN205297418U - Oil draining anchoring device of oil pipe - Google Patents
Oil draining anchoring device of oil pipe Download PDFInfo
- Publication number
- CN205297418U CN205297418U CN201620008417.7U CN201620008417U CN205297418U CN 205297418 U CN205297418 U CN 205297418U CN 201620008417 U CN201620008417 U CN 201620008417U CN 205297418 U CN205297418 U CN 205297418U
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- CN
- China
- Prior art keywords
- oil pipe
- oil
- draining
- anchoring device
- anchoring
- Prior art date
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Abstract
The utility model provides an oil draining anchoring device of oil pipe who uses on the oil field, its aim at: the problem of the oil pipe in -process pressure testing midway under of conventional oil draining anchoring device of oil pipe is solved. It comprises the oil pipe anchor of conventionality and the hollow shear pin of centering intraduct, the in -process of going into the well, and the water conservancy intercommunicating pore is blockked up by hollow shear pin, at this moment, the unable realization anchoring of oil pipe pressure testing oil pipe anchor, instantly, under the intact oil pipe during sucker rod, the plunger is cut hollow shear pin when this draining anchor, and the hydraulic passageway is opened, just can realize the oil pipe anchoring. This invention is compared its advance with other oil draining anchoring device of oil pipe and is lain in: not only have the function of draining and anchoring, still have the pressure testing function midway of lower oil pipe in -process simultaneously, lightened workman's intensity of labour, avoided many uncertain factors to the adverse effect that production brought, improved the efficiency.
Description
Technical field
The present invention relates to a kind of oil field downhole tool, particularly relate to a kind of can the oil draining anchoring device of oil pipe of midway pressure testing.
Background technology
Oil draining anchoring device of oil pipe is downhole tool conventional in sucker rod pumping technique, and on-the-spot Application comparison is extensive. Oil draining function can be completed on the one hand, reduce and pollute, improve the working environment of workman, the grappling of oil pipe can also be realized on the other hand, improve pump efficiency, save the energy. In the actual production of oil field, cause the situation that whole time tubing string is tripped out again for avoiding indivedual tubing thread poorly sealed, it is often necessary to the oil pipe pipe section pressure test gone into the well also known as midway pressure testing. And most oil draining anchoring device of oil pipes that scene adopts do not possess midway pressure testing function. Chinese patent (application number) 2005201277569 discloses a kind of Oil pipe anchoring and oil leakage device, though this Oil pipe anchoring and oil leakage device can be reliably achieved draining and the grappling function of oil pipe, but, the operation of midway pressure testing is extremely numerous and diverse, when the oil well that some stratum water absorbing capacity is stronger uses, even cannot realize midway pressure testing, have impact on the scope of application of this instrument and application effect.
Summary of the invention
The present invention is just to provide one can overcome the deficiencies in the prior art, it is provided that one can realize reliable grappling and draining, and operate extremely easy can realize in time Tubing During Running can the oil draining anchoring device of oil pipe of pressure testing halfway simultaneously.
The technical solution adopted in the present invention is: the oil draining anchoring device of oil pipe being made up of central canal, piston, anchor watt etc., the hydraulic communication hole of central canal arranges a pin, one end of this pin and hydraulic communication hole match, combine with hydraulic communication hole by modes such as screw thread, interference fit, rubber sealing or bondings, hydraulic communication hole is blocked, when midway pressure testing, owing to hydraulic communication hole is blocked by pin, fluid power cannot be delivered to plunger shaft and promote piston stroking upward, it is impossible to completes grappling action; After oil pipe has been gone into the well, when the oil pump plunger piston gone into the well or the special joint being connected on sucker rod are by this draining anchorage device, pin is cut off, the fluid power passage blocked is opened, fluid power can enter plunger shaft through passage and promote piston stroking upward, completing the grappling action of oil pipe, the purpose of the present invention is achieved.
Preferably, described oil draining anchoring device of oil pipe, there is the blind hole of an ecto-entad vertically inside its pin.
Preferably, described oil draining anchoring device of oil pipe, its pin ends has a cavity.
Preferably, described oil draining anchoring device of oil pipe, its pin is nonmetallic materials.
The outstanding advantages that this invention relatively prior art has is: not only have the function of draining and grappling, also there is the midway pressure testing function in lower Tubing During Running simultaneously, alleviate the labor intensity of workman, it is to avoid the adverse effect that production is brought by many uncertain factors, improve effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of this invention; Fig. 2 is the structural representation partial enlarged drawing of a kind of embodiment; Fig. 3 is the structural representation partial enlarged drawing of another kind of embodiment.
In accompanying drawing: [1] central canal; [2] piston; [3] pin; [4] plunger shaft; [5] cavity; [6] blind hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated, and provides a kind of preferred forms.
As shown in Figure 2: pin [3] can adopt nonmetallic moulding, left end has blind hole [6], cavity [5] is had in right-hand member, binding agent can be adopted to be bonded together between left end and central canal [1], playing and seal and fixing effect, its effect of the cavity [5] of left end is the equivalent density reducing pin, can automatically float after pin is cut off, will not enter in wear-resistant, cause oil well pump cisco unity malfunction to lose efficacy. When plunger or special joint pass through, pin [3] is cut off, and blind hole [6] becomes through hole; As it is shown on figure 3, pin is solid, sealing by " O " shape sealing ring, after pin [3] is cut off, the left-half of pin is pushed cavity [5] by fluid power, is opened by intercommunicating pore.
The operation principle of the present invention is: when lower oil pipe pressure test, has blocked the hydraulic communication hole on central canal due to pin, and the fluid power in central canal cannot be delivered on piston, therefore will not grappling during pressure testing; When oil pipe is down to behind precalculated position, enter sucker rod down again, the oil pump plunger piston of sucker rod lower end or when being connected to the special joint on sucker rod by draining anchorage device, pin is cut off by plunger, fluid power passage is opened, fluid power in central canal can pass through blind hole and enter plunger shaft promotion piston stroking upward, completes grappling, and the purpose of the present invention is achieved.
The above embodiments are only present invention embodiment on common a kind of draining anchorage device, are combined by the oil pipe anchoring apparatus of hydraulic drive with other, block the embodiment of fluid power intercommunicating pore all within protection scope of the present invention by arranging shear pin.
Claims (4)
1. the oil draining anchoring device of oil pipe being made up of central canal, piston, anchor watt etc., it is characterized in that: on the hydraulic communication hole of central canal, be provided with pin, one end of this pin and hydraulic communication hole match, combine with hydraulic communication hole by modes such as screw thread, interference fit, rubber sealing or bondings, hydraulic communication hole is blocked.
2. oil draining anchoring device of oil pipe as claimed in claim 1, it is characterised in that: there is the blind hole of an ecto-entad vertically inside its pin.
3. oil draining anchoring device of oil pipe as claimed in claim 1, it is characterised in that: its pin ends has a cavity.
4. oil draining anchoring device of oil pipe as claimed in claim 1, it is characterised in that: its pin is nonmetallic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008417.7U CN205297418U (en) | 2016-01-06 | 2016-01-06 | Oil draining anchoring device of oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008417.7U CN205297418U (en) | 2016-01-06 | 2016-01-06 | Oil draining anchoring device of oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297418U true CN205297418U (en) | 2016-06-08 |
Family
ID=56484971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620008417.7U Expired - Fee Related CN205297418U (en) | 2016-01-06 | 2016-01-06 | Oil draining anchoring device of oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443060A (en) * | 2016-01-06 | 2016-03-30 | 东营市海天石油科技有限责任公司 | Oil pipe drainage anchor |
-
2016
- 2016-01-06 CN CN201620008417.7U patent/CN205297418U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443060A (en) * | 2016-01-06 | 2016-03-30 | 东营市海天石油科技有限责任公司 | Oil pipe drainage anchor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Kang Jie Inventor after: Ning Yunshen Inventor after: Sun Yuanping Inventor after: Fan Xueshan Inventor after: Zhao Jun Inventor after: Xu Jiajun Inventor after: Lang Yingwei Inventor after: Hu Shanshan Inventor before: Kang Jie Inventor before: Ning Yunshen Inventor before: Fan Xueshan Inventor before: Zhao Jun Inventor before: Xu Jiajun Inventor before: Lang Yingwei Inventor before: Hu Shanshan |
|
| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20220106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |