CN201582095U - Under pump constant pressure sliding sleeve of tubing pump - Google Patents
Under pump constant pressure sliding sleeve of tubing pump Download PDFInfo
- Publication number
- CN201582095U CN201582095U CN2009202782116U CN200920278211U CN201582095U CN 201582095 U CN201582095 U CN 201582095U CN 2009202782116 U CN2009202782116 U CN 2009202782116U CN 200920278211 U CN200920278211 U CN 200920278211U CN 201582095 U CN201582095 U CN 201582095U
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- CN
- China
- Prior art keywords
- sliding sleeve
- pump
- constant pressure
- under
- tubing
- 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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Abstract
The utility model relates to an under pump constant pressure sliding sleeve of a tubing pump, which comprises a sliding sleeve, a supporting connecting rod, O-shaped sealing rings, a constant pressure shearing pin and a sliding sleeve body. The sliding sleeve body is arranged in the sliding sleeve, and the both are connected and fixed through the constant pressure shearing pin; the supporting connecting rod is connected on the sliding sleeve body through internal threads; and the O-shaped sealing rings are respectively installed in an upper groove and a lower groove of a cylindrical surface. The under pump constant pressure sliding sleeve has the advantages of novel structure, small volume, easy processing, convenient operation and use and stable work; and by adopting the under pump constant pressure sliding sleeve, the purpose of the safe and environment-friendly down hole operation of the tubing pump under pressure can be achieved.
Description
Technical field:
The utility model relates to a kind of downhole hardware that is used for pumping well underground work.
Background technique:
Depress in the tubing pump underground work process at band, if do not take oil pipe to stop up technology shutoff pump line, borehole fluid will cause environmental pollution and security incident on the bottom pressure effect lower edge pump line ejection face of land.It is to take to remove former pump fixed valve base and valve ball that existing oil well Operating Pressure pump line stops up technology, the way of a special spring dual check ball seat is installed under pump comes the canned pump tubing string.There are three aspect deficiencies in spring dual check ball seat:
1, needs to change former pump structure.Just can mounting spring formula dual check ball seat after former pump fixed valve base and valve ball removed, make the pressure testing of pump line post defective easily;
2, valve ball is difficult for falling lower valve base.The valve ball of spring dual check ball seat relies on three spring detents to support during following pump, is positioned at the salable borehole pressure of upper valve base; The valve ball of spring dual check ball seat need be exerted pressure by oil pipe after the completion and get on the lower valve base, the sealing of releasing pump line, make tubing pump in running order, but in the oil pipe course of exerting pressure, the spring supporting claw may produce the support force of a substantially horizontal to valve ball, valve ball can not be fallen on the lower valve base, do not remove the pump line sealing, thereby tubing pump can not be in running order;
3, processing technology complexity, cost is higher.
The model utility content
The purpose of this utility model is to provide a kind of depressing at band not changing level pressure sliding sleeve under the tubing pump pump that can realize pump line shutoff, assurance oil well Operating Pressure safety, environmental protection under the pump housing and the pump line columniation structure situation in the tubing pump process.
The utility model is to realize like this.Under this kind tubing pump pump the level pressure sliding sleeve by sliding sleeve, support link, " O " shape seal ring, level pressure cuts off pin and sleeve body is formed, its structure, assembled relation are as follows: be provided with sleeve body in the sliding sleeve, the two is cut off pin by level pressure and is connected and fixed; There is support link the sleeve body top by the internal thread tipping, and " O " shape seal ring is housed respectively in the upper and lower groove in cylndrical surface.During underground work, smear lubricated the finger equably on the sleeve body surface, the sleeve body that will have support link and " O " shape seal ring tightens level pressure and cuts off pin by pack into spacing shoulder position in the sliding sleeve of direction; Support link is connected pressed joint under sliding sleeve and the tubing pump towards the tubing pump direction, and rotate support link and adjust its length, make it just the tubing pump fixed valve ball to be supported to the standing valve cover lower plane; Press by the working design band to be lowered to tail pipe tubing string under the pumps such as plug, sand sediment pipe and screen casing successively, with the tail pipe tubing string be lowered to the pump line post to design attitude after sliding sleeve is connected; Be lowered to sucker rod by design, the band plunger enters pump barrel, behind the accent over-stroke plunger is tripped out pump barrel, oil pipe is exerted pressure to level pressure and is cut off more than the pin pressure, it is cut off, and sleeve body loses fixing, falls under the pump in the tail pipe in gravity and pressure effect, make it lose sealability, follow under the fixed valve ball of sleeve body tubing pump in dropping process and fall on the fixed valve base, make tubing pump in running order, lower sucker rod, make plunger enter pump barrel, oil well can drop into oil pumping and produce.
The utility model novel structure, volume is little, is easy to processing, and easy for operation, reliable operation utilizes it can reach the purpose of job safety environmental protection under the kill-job of tubing pump band.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated.
As shown in the figure, the utility model by sliding sleeve 1, support link 2, " O " shape seal ring 3, level pressure cut off pin 4, sleeve body 5 is formed.Wherein, sliding sleeve 1 is that a upper and lower end has 27/8 respectively " cylindrical body of TBG pin thread, its middle part is along circumferentially being evenly equipped with the pin hole that 2-4 inboard is processed with shoulder.Support link 2 is that a lower end band is connected the round bar body with pin thread with sleeve body 5, and its upper end end face is processed as concave surface, in order to support the tubing pump fixed valve ball to the standing valve cover lower plane, the build-up pressure transmission channels.Level pressure is cut off pin 4 inboard front ends and is provided with shoulder, matches with pin hole on the sliding sleeve.Sleeve body 5 is for the surface is provided with the cylindrical body of three grooves in upper, middle and lower, be respectively applied for the dress seal ring and with the pin use that matches, end face is provided with to be connected with support link uses internal thread.
Claims (1)
1. level pressure sliding sleeve under the tubing pump pump, by sliding sleeve (1), support link (2), " O " shape seal ring (3), level pressure cut off pin (4), sleeve body (5) is formed, it is characterized in that, be provided with sleeve body (5) in the sliding sleeve (1), the two is cut off pin (4) by level pressure and is connected and fixed; There is support link (2) sleeve body (5) top by the internal thread tipping, and " O " shape seal ring (3) is housed respectively in the upper and lower groove in cylndrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782116U CN201582095U (en) | 2009-12-16 | 2009-12-16 | Under pump constant pressure sliding sleeve of tubing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782116U CN201582095U (en) | 2009-12-16 | 2009-12-16 | Under pump constant pressure sliding sleeve of tubing pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582095U true CN201582095U (en) | 2010-09-15 |
Family
ID=42724093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202782116U Expired - Lifetime CN201582095U (en) | 2009-12-16 | 2009-12-16 | Under pump constant pressure sliding sleeve of tubing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582095U (en) |
-
2009
- 2009-12-16 CN CN2009202782116U patent/CN201582095U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |