CN201738866U - Anti-pollution well-cleaning packer - Google Patents
Anti-pollution well-cleaning packer Download PDFInfo
- Publication number
- CN201738866U CN201738866U CN2010202614490U CN201020261449U CN201738866U CN 201738866 U CN201738866 U CN 201738866U CN 2010202614490 U CN2010202614490 U CN 2010202614490U CN 201020261449 U CN201020261449 U CN 201020261449U CN 201738866 U CN201738866 U CN 201738866U
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- leather cup
- cup assembly
- spring
- well
- pollution
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Abstract
The utility model discloses an anti-pollution well-cleaning packer used for an oil field. The anti-pollution well-cleaning packer consists of an upper joint (1), a central pipe (2), a leather cup assembly (3), a spring (4), a jacket (5), a one-way valve (6) and a lower joint (7), wherein the upper joint (1) and the lower joint (7) are arranged at the two ends of the central pipe (2); the leather cup assembly (3) and the jacket (5) are sheathed outside the central pipe (2) from top to bottom; the spring (4) is sheathed outside the central pipe (2) and is positioned between the leather cup assembly (3) and the lower joint (7); the jacket (5) is sheathed outside the spring (4); and the one-way valve (6) is arranged in the lower joint (7). For the anti-pollution well-cleaning packer, in the process that a tool descends a well and in the normal production process of an oil well, the sealed leather cup assembly (3) can not be damaged, and the leather cup assembly works when in the inverse flushing.
Description
Technical field
The utility model relates to packer technology field, oil field, relates in particular to a kind of anti-pollution flushing packer.
Background technology
At present, the anti-pollution technology for washing well in oil field with packer based on leather cup form packer.Instrument go into the well with the oil well normal productive process in, tubing string needs play up and down, when tubing string moved upward, casing coupling met the crack in case cup packing face is passed by, the sealing surface of leather cup is easily damaged and influences its sealing performance.
Summary of the invention
The purpose of this utility model is the problem that influences its sealing performance for the sealing surface that solves above-mentioned anti-pollution flushing packer leather cup damages easily, and a kind of anti-pollution flushing packer that can prevent that cup packing face from damaging is provided, guaranteed cup packing face normally go into the well with manufacturing process in do not damage, improved the sealing performance of anti-pollution flushing packer greatly.
The utility model mainly is to be provided with spring in the leather cup assembly bottom of packer; Be provided with ball-and-seat in packer lower contact inside.
The beneficial effects of the utility model are:
In instrument is gone into the well process, especially change in the elevator process, tubing string is up, and leather cup compression this moment spring shrinks, and leather cup itself is motionless, prevents to damage when leather cup from crossing casing coupling; In normal productive process, when tubing string was upwards wriggled, leather cup compression spring shrank simultaneously, and leather cup itself is motionless, prevents leather cup long term wear destruction.
The course of work of the present utility model and principle:
Go into the well:
Instrument is gone into the well in the process, and leather cup can be descending smoothly, change in the elevator process, and the up a bit of distance of tubing string, leather cup compression this moment spring shrinks, and leather cup itself is motionless, prevents to damage when leather cup from crossing casing coupling.
During the oil well ordinary production:
Tubing string is in the state of wriggling up and down always, and tubing string moves downward the application life that does not influence leather cup.When tubing string was upwards wriggled, leather cup compression spring shrank, and leather cup itself is motionless, prevents that leather cup from wearing and tearing in the long-term wriggling process of tubing string.
Well liquid flow into upper tool part by ball-and-seat or leather cup and finally enters oil well pump.
When settling sand was arranged at leather cup top, sand sank after can entering central tube by the side opening on central tube top, again by the ball-and-seat in the lower contact, finally deposits in the tail pipe that is connected anti-pollution flushing packer bottom.
In the washing well process:
During oil jacket annular space pressurization well-flushing, leather cup is descending with no longer descending after overcoat contacts, leather cup is expanded at this moment and is sealed up the oil jacket annular space, flushing fluid also can't enter into the oil reservoir of leather cup bottom by ball-and-seat, can only enter oil well pump by returning on the central tube side opening, return into manifold of ground from tubing string, prevented that flushing fluid from entering the stratum.
Description of drawings
Fig. 1 is the cross-sectional schematic of the utility model embodiment.
Wherein, the 1-top connection, the 2-central tube, 3-leather cup assembly, the 4-spring, the 5-overcoat,
The 6-ball-and-seat, the 7-lower contact.
The specific embodiment
See also shown in Figure 1, present embodiment is to be made of top connection 1, central tube 2, leather cup assembly 3, spring 4, overcoat 5, ball-and-seat 6 and lower contact 7, top connection 1 and lower contact 7 are installed on central tube 2 two ends, leather cup assembly 3 and overcoat 5 are set in central tube 2 outsides from top to down, central tube 2 outsides that spring 4 is enclosed within, spring 4 is between leather cup assembly 3 and lower contact 7, and overcoat 5 is set in outside the spring 4; Ball-and-seat 6 is arranged on lower contact 7 inside.
Described leather cup assembly 3 is two, and the centre separates with spacer ring.
Described ball-and-seat 6 is welding with the connected mode of lower contact 7.
Claims (4)
1. anti-pollution flushing packer, be to constitute by top connection (1), central tube (2), leather cup assembly (3), overcoat (5) and lower contact (7), top connection (1) and lower contact (7) are installed on central tube (2) two ends, leather cup assembly (3) and overcoat (5) are set in central tube (2) outside from top to down, it is characterized in that: also have spring (4), central tube (2) outside that spring (4) is enclosed within, spring (4) is positioned between leather cup assembly (3) and the lower contact (7), and overcoat (5) is set in outside the spring (4).
2. anti-pollution flushing packer according to claim 1 is characterized in that: described lower contact (7) inside is provided with ball-and-seat (6).
3. anti-pollution flushing packer according to claim 2 is characterized in that: described ball-and-seat (6) is welding with the connected mode of lower contact (7).
4. anti-pollution flushing packer according to claim 1 and 2 is characterized in that: described leather cup assembly (3) is two, and the centre adds spacer ring and separates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202614490U CN201738866U (en) | 2010-07-19 | 2010-07-19 | Anti-pollution well-cleaning packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202614490U CN201738866U (en) | 2010-07-19 | 2010-07-19 | Anti-pollution well-cleaning packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201738866U true CN201738866U (en) | 2011-02-09 |
Family
ID=43554144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202614490U Expired - Fee Related CN201738866U (en) | 2010-07-19 | 2010-07-19 | Anti-pollution well-cleaning packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201738866U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561962A (en) * | 2011-12-28 | 2012-07-11 | 中国石油天然气股份有限公司 | Coal bed gas guiding well-washing machine |
| CN104632121A (en) * | 2015-01-27 | 2015-05-20 | 沈阳新城石油机械制造有限公司 | Numerical-control reciprocating type electric-submersible-pump controllable switch divider |
| CN109339732A (en) * | 2018-09-14 | 2019-02-15 | 宝鸡瑞林石油机电设备有限责任公司 | A kind of American football shape packing element sand control packer |
| RU213190U1 (en) * | 2022-06-06 | 2022-08-29 | Общество с ограниченной ответственностью "ИНТОВ" | wellhead pressurizing packer |
-
2010
- 2010-07-19 CN CN2010202614490U patent/CN201738866U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561962A (en) * | 2011-12-28 | 2012-07-11 | 中国石油天然气股份有限公司 | Coal bed gas guiding well-washing machine |
| CN102561962B (en) * | 2011-12-28 | 2014-11-19 | 中国石油天然气股份有限公司 | Coal bed gas guiding well-washing machine |
| CN104632121A (en) * | 2015-01-27 | 2015-05-20 | 沈阳新城石油机械制造有限公司 | Numerical-control reciprocating type electric-submersible-pump controllable switch divider |
| CN109339732A (en) * | 2018-09-14 | 2019-02-15 | 宝鸡瑞林石油机电设备有限责任公司 | A kind of American football shape packing element sand control packer |
| RU213190U1 (en) * | 2022-06-06 | 2022-08-29 | Общество с ограниченной ответственностью "ИНТОВ" | wellhead pressurizing packer |
| RU2794020C1 (en) * | 2022-11-18 | 2023-04-11 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Sleeve cementing packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20140719 |
|
| EXPY | Termination of patent right or utility model |