CN2596002Y - Casing pipe sucker - Google Patents
Casing pipe sucker Download PDFInfo
- Publication number
- CN2596002Y CN2596002Y CN 03211205 CN03211205U CN2596002Y CN 2596002 Y CN2596002 Y CN 2596002Y CN 03211205 CN03211205 CN 03211205 CN 03211205 U CN03211205 U CN 03211205U CN 2596002 Y CN2596002 Y CN 2596002Y
- Authority
- CN
- China
- Prior art keywords
- rubber
- connector
- bar
- pressure cap
- ball
- 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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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to a downhole operation tool used in an oil field, particularly a casing pipe sucker. The utility model has a tubular structure in which a sucking rod (1), a connecting head (10), and a ball seat (13) are connected with each other in sequence, wherein, the outer side of the sucking rod (1) is sheathed with sealing rubber (4); the inner side of a connecting point between the ball seat (13) and the connecting head (10) forms a bell mouth shape on which a ball (12) is arranged. A blocking ring (11) is arranged above the ball (12). The utility model solves the problem that oil can not reach a wellhead owing to the low inner pressure of a casing pipe. The utility model has the advantages of capability of oil suction, favorable sealing performance, light weight, convenient and quick operation, high efficiency, and increased success ratio of oil suction.
Description
Technical field
The utility model relates to oil field underground work instrument, is specially a kind of casing swab.
Background technology
At present, many oil fields are when formation testing, because the sleeve pipe internal pressure is low, oil can't arrive well head, and this takes out with regard to needing a kind of energy of development to realize, the underground work instrument of oil absorptive function, so that successfully finish the formation testing suction operation.
The utility model content
The purpose of this utility model is exactly in order to overcome above-mentioned difficulties, and provide a kind of can suction oil, good airproof performance, in light weight, convenient to operation, efficient is high, increase the casing swab that aspirates oily success rate.
The technical solution of the utility model is:
A kind of casing swab places in the sleeve pipe, for taking out the tubular structure that bar, connector, ball seat are connected in sequence, the described bar outside of taking out is set with stripper rubber, the inboard of described ball seat and connector junction is toroidal, ball is placed on it, be linear sealing between ball seat and the steel ball, described ball top is provided with baffle ring.
Described connector two ends internal thread respectively with take out bar and the ball seat external screw thread matches.
The described bar outside of taking out is set with pressure cap II, seal nipple, rubber axle, pressure cap I successively, wherein pressure cap II closely contacts with the connector upper surface and is connected, stripper rubber is set in the rubber axle outside, and closely contacts with seal nipple and to be connected, and pressure cap I is used for being fixed the rubber axle.
Described stripper rubber is the sulfuration part that inner layer metal, outer vulcanized rubber are formed, and it is shaped as the leather cup formula, and its male cone (strobilus masculinus) and seal nipple inner conical surface are close to.
At least two of described stripper rubbers are equipped with the rubber sheath that matches with its male cone (strobilus masculinus) between the adjacent seals rubber, the nut that is threaded with the rubber axle is equipped with at the stripper rubber two ends, is used for being fixed stripper rubber.
Described pressure cap II, seal nipple, pressure cap I respectively with take out bar and be threaded.
Described connector and take out between the bar and to adopt the sealing of O shape O-ring seal.
The beneficial effects of the utility model are:
The utility model is to take out the tubular structure that bar, connector, ball seat are connected in sequence, take out the bar outside and be set with stripper rubber, the inboard of ball seat and connector junction is toroidal, ball is placed on it, the ball top is provided with baffle ring, thereby has solved because the sleeve pipe internal pressure is low, and oil can't arrive the problem of well head, its stripper rubber is the sulfuration part of metal surface sulfurizing rubber, has advantage wear-resisting, good airproof performance.The utility model is in light weight, convenient to operation, efficient is high, can increase the oily success rate of suction.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Description of drawings
Fig. 1 is the structure sectional view of the utility model casing swab.
The specific embodiment
As shown in Figure 1, the utility model is formed by taking out bar 1, stripper rubber 4, rubber axle 6, seal nipple 7, connector 10, baffle ring 11, steel ball 12 and ball seat 13 etc., for taking out the tubular structure that bar 1, connector 10, ball seat 13 are connected in sequence by screw thread, connector 10 two ends internal threads respectively with take out bar 1 and ball seat 13 external screw threads match, be threaded; Ball seat 13 is toroidal with the inboard of connector 10 junctions, and steel ball 12 is placed on it, is linear sealing between ball seat 13 and the steel ball 12, is provided with the baffle ring 11 that is threaded with connector 10 above steel ball 12, in the connector 10; Be set with pressure cap II8, seal nipple 7, rubber axle 6, pressure cap I2 from bottom to top successively taking out bar 1 outside, wherein pressure cap II8 closely contacts with connector 10 upper surfaces and is connected, and pressure cap I2 is used for being fixed rubber axle 6; Three stripper rubbers 4 are set in rubber axle 6 outsides, wherein said stripper rubber is the sulfuration part that inner layer metal, outer vulcanized rubber are formed, it is shaped as the leather cup formula, its male cone (strobilus masculinus) and seal nipple 7 inner conical surfaces are close to, the rubber sheath 5 that matches with its male cone (strobilus masculinus) is housed between the adjacent seals rubber 4, the nut 3 that is threaded with rubber axle 6 is equipped with at stripper rubber 4 two ends, is used for being fixed stripper rubber 4; Pressure cap II8, seal nipple 7, pressure cap I2 respectively with take out bar 1 and be threaded.
Installation process of the present utility model is as follows:
Taking out the external screw thread place of bar 1 near the upper end, with the pressure cap I2 that is threaded, two nuts 3 are housed in advance, the rubber axle 6 of three stripper rubbers 4 and two rubber sheaths 5 wears on it from the lower end of taking out bar 1, be close to the lower end of pressure cap I2, seal nipple 7 usefulness are threadedly connected to above-mentioned lower end of taking out bar 1, its conical surface is close to the conical surface of stripper rubber 4 bottom, be pressure cap II8 and connector 10 successively then, connector 10 and take out between the bar 1 and to adopt 9 sealings of O shape O-ring seal wherein, baffle ring 11 is installed in the inside of connector 10, put into steel ball 12 then, connect ball seat 13 at last.
During formation testing, because the sleeve pipe internal pressure is low, oil can't arrive well head, so the present embodiment casing swab is placed down in the sleeve pipe, when transferring casing swab, under the thrust of oil, move on the steel ball 12, oil passes baffle ring 11 and flows into and take out in the bar 1 from ball seat 13 inside, flow into the top of casing swab by the slotted hole of taking out bar 1, reaches the purpose of oil suction; To carry on the casing swab, stripper rubber 4 and bobbin seal, under the pressure effect that oil produces, steel ball 12 and ball seat 13 sealings, oil reaches the purpose of oil pumping with moving on the casing swab.
Claims (7)
1. casing swab, it is characterized in that for taking out the tubular structure that bar (1), connector (10), ball seat (13) are connected in sequence, described bar (1) outside of taking out is set with stripper rubber (4), described ball seat (13) is toroidal with the inboard of connector (10) junction, ball (12) is placed on it, and described ball (12) top is provided with baffle ring (11).
2. according to the described casing swab of claim 1, it is characterized in that connector (10) two ends internal thread respectively with take out bar (1) and ball seat (13) external screw thread matches.
3. according to claim 1 or 2 described casing swabs, it is characterized in that taking out bar (1) outside and be set with pressure cap II (8), seal nipple (7), rubber axle (6), pressure cap I (2) successively, wherein pressure cap II (8) closely contacts with connector (10) upper surface and is connected, stripper rubber (4) is set in rubber axle (6) outside, and is connected with the tight contact of seal nipple (7).
4. according to the described casing swab of claim 3, it is characterized in that stripper rubber (4) is the sulfuration part, it is shaped as the leather cup formula, and its male cone (strobilus masculinus) and seal nipple (7) inner conical surface is close to.
5. according to the described casing swab of claim 4, it is characterized in that stripper rubber (4) is at least two, the rubber sheath (5) that matches with its male cone (strobilus masculinus) is housed between the adjacent seals rubber (4), and the nut (3) that is threaded with rubber axle (6) is equipped with at stripper rubber (4) two ends.
6. according to the described casing swab of claim 3, it is characterized in that pressure cap II (8), seal nipple (7), pressure cap I (2) respectively with take out bar (1) and be threaded.
7. according to the described casing swab of claim 3, it is characterized in that connector (10) and take out employing O shape O-ring seal (9) sealing between the bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211205 CN2596002Y (en) | 2003-01-28 | 2003-01-28 | Casing pipe sucker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211205 CN2596002Y (en) | 2003-01-28 | 2003-01-28 | Casing pipe sucker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596002Y true CN2596002Y (en) | 2003-12-31 |
Family
ID=33754290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03211205 Expired - Fee Related CN2596002Y (en) | 2003-01-28 | 2003-01-28 | Casing pipe sucker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596002Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575955B (en) * | 2009-02-27 | 2013-01-02 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Design method of low-pressure gas well swabbing damper |
-
2003
- 2003-01-28 CN CN 03211205 patent/CN2596002Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575955B (en) * | 2009-02-27 | 2013-01-02 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Design method of low-pressure gas well swabbing damper |
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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 |