CN202249942U - Oil-water-well casing swabbing tool - Google Patents
Oil-water-well casing swabbing tool Download PDFInfo
- Publication number
- CN202249942U CN202249942U CN2011203039221U CN201120303922U CN202249942U CN 202249942 U CN202249942 U CN 202249942U CN 2011203039221 U CN2011203039221 U CN 2011203039221U CN 201120303922 U CN201120303922 U CN 201120303922U CN 202249942 U CN202249942 U CN 202249942U
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- Prior art keywords
- tool
- valve seat
- tool body
- swabbing
- oil
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- Expired - Fee Related
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Abstract
The utility model relates to a petroleum and gas exploitation tool, in particular to an oil-water-well casing swabbing tool. The technical scheme is that the oil-water-well casing swabbing tool mainly comprises a rope socket, a tool body, a rubber cylinder, a weighted lever, a safety pin, a valve ball, a valve seat and a spring; the upper end of the tool body is connected with the rope socket, and the lower end is connected with the weighted lever; the rubber cylinder is fixed at the external of the central portion of the tool body; the outer wall of the tool body is provided with a pressure balancing hole; the valve ball and the valve seat are arranged in an inner cavity of the tool body; the valve seat is provided with a drainage hole; and the spring is mounted between the end of the tool body and the valve seat. The utility model has the beneficial effects that the swabbing tool has good sealing performance, with the service lifetime of sealing pieces being long; the swabbing tool has inner and outer unloading mechanisms, thereby guaranteeing the operating safety and the operating reliability and avoiding downhole accidents; in addition, the swabbing tool can be conveniently and safely connected with a steel wire rope which is not twisted during the working process.
Description
Technical field
The utility model relates to a kind of oil and gas exploitation instrument, particularly a kind of Casing Failure pumping instrument.
Background technology
At present in Oilfield developing is produced; There are some oil well yield to be unworthy down oil pipe and adopt the sleeve pipe Swab Technology; And existing Casing Failure pumping instrument exists following shortcoming: adopt bowl-shape separately or the tubular rubber seal, sealing effectiveness is poor, seal life is short; There is not overload protection arrangement; Downhole tool and wire rope connect to adopt to insert irritates plumbous formula rope socket, and connection is wasted time and energy, and uses inconvenient.
Summary of the invention
The purpose of the utility model is exactly the above-mentioned defective that exists to prior art, a kind of Casing Failure pumping instrument is provided, good airproof performance, the long service life of seal.
Its technical scheme is: mainly be made up of rope socket, body, packing element, weighted lever, safety pin, valve ball, valve seat, spring; The body upper end connects rope socket, and the lower end connects weighted lever, the external stability packing element of the centre of body; The outer wall of body has pressure compensation opening; Be provided with valve ball and valve seat in the inner chamber of body, on valve seat, have discharge orifice, between the end of body and the valve seat spring is housed.
The beneficial effect of the utility model is: the good airproof performance of pumping instrument, and the long service life of seal, the pumping instrument is provided with inside and outside unloading mechanism, has guaranteed the security reliability of pumping instrument when work, has avoided the generation of down-hole accident; Connect convenient and safely between pumping instrument and the wire rope, wire rope can not beaten and turn round during work.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model;
Among the last figure: rope socket 1, body 2, packing element 3, weighted lever 4, safety pin 5, valve ball 6, valve seat 7, spring 8, pressure compensation opening 9, discharge orifice 10.
The specific embodiment:
In conjunction with accompanying drawing 1, the utility model is done further to describe:
The utility model mainly is made up of rope socket 1, body 2, packing element 3, weighted lever 4, safety pin 5, valve ball 6, valve seat 7, spring 8; Body 2 upper ends connect rope socket 1, and the lower end connects weighted lever 4, the external stability packing element 3 of the centre of body 2; The outer wall of body 2 has pressure compensation opening 9; Be provided with valve ball 6 and valve seat 7 in the inner chamber of body 2, on valve seat 7, have discharge orifice 10, between the end of body 2 and the valve seat 7 spring 8 is housed.
The swab G.I.H, pit shaft is descending in the effect lower edge of weighted lever and self gravitation thereof.After swab got into liquid level, the big quantity of fluid valve that swab is inner backed down and influxs swab top, and small amount of liquid influxs swab top through the annular gap that swab and sleeve pipe form.After desired depth, its haulage cable stops to transfer under the swab, and swab temporarily is still in the liquid, and valve ball falls after rise closes inner flow passage.Subsequently, cylinder is received wire rope, and swab is up under rope traction.At this moment; The liquid on swab top has the trend that is back to its underpart, because the annular gap that swab and sleeve pipe constitute is less, swab at first forms chock pressure difference up and down; The rapidly outer sealing annular gaps that rises of swab top packing element under this differential pressure action is with its top and the bottom liquid partition.Therefore, swab packing element in up process is a seal.When liquid was lifted to well head by swab, upper liquid flow in the ground tanks through the well head threeway, and fluid column reduces, and pressure reduces, and packing element is resilience thereupon.When packing element springs back to when not sealing, the glue bowl promptly replaces packing element and seals, until upper liquid is discharged well head.In practical operation, for preventing swab bump well head, generally swab is carried to apart from well head 3～5 m places, promptly begin the 2nd pumping.
Claims (1)
1. Casing Failure pumping instrument; It is characterized in that: mainly form by rope socket (1), body (2), packing element (3), weighted lever (4), safety pin (5), valve ball (6), valve seat (7), spring (8); Body (2) upper end connects rope socket (1), and the lower end connects weighted lever (4), the external stability packing element (3) of the centre of body (2); The outer wall of body (2) has pressure compensation opening (9); Be provided with valve ball (6) and valve seat (7) in the inner chamber of body (2), on valve seat (7), have discharge orifice (10), between the end of body (2) and the valve seat (7) spring (8) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203039221U CN202249942U (en) | 2011-08-20 | 2011-08-20 | Oil-water-well casing swabbing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203039221U CN202249942U (en) | 2011-08-20 | 2011-08-20 | Oil-water-well casing swabbing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249942U true CN202249942U (en) | 2012-05-30 |
Family
ID=46111201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203039221U Expired - Fee Related CN202249942U (en) | 2011-08-20 | 2011-08-20 | Oil-water-well casing swabbing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112606A (en) * | 2020-09-30 | 2020-12-22 | 中国石油天然气集团有限公司 | Constant-pressure constant-quantity swab and constant-pressure constant-quantity swabbing method thereof |
| CN114109318A (en) * | 2020-08-27 | 2022-03-01 | 中国石油化工股份有限公司 | Swabbing device and method |
-
2011
- 2011-08-20 CN CN2011203039221U patent/CN202249942U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109318A (en) * | 2020-08-27 | 2022-03-01 | 中国石油化工股份有限公司 | Swabbing device and method |
| CN114109318B (en) * | 2020-08-27 | 2024-05-07 | 中国石油化工股份有限公司 | Pumping device and method |
| CN112112606A (en) * | 2020-09-30 | 2020-12-22 | 中国石油天然气集团有限公司 | Constant-pressure constant-quantity swab and constant-pressure constant-quantity swabbing method thereof |
| CN112112606B (en) * | 2020-09-30 | 2024-03-01 | 中国石油天然气集团有限公司 | Constant-pressure constant-quantity type swab and constant-pressure constant-quantity swabbing method thereof |
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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: 20120530 Termination date: 20120820 |