CN201381812Y - Well flushing tool - Google Patents
Well flushing tool Download PDFInfo
- Publication number
- CN201381812Y CN201381812Y CN200920023098U CN200920023098U CN201381812Y CN 201381812 Y CN201381812 Y CN 201381812Y CN 200920023098 U CN200920023098 U CN 200920023098U CN 200920023098 U CN200920023098 U CN 200920023098U CN 201381812 Y CN201381812 Y CN 201381812Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- spring
- seal
- communication hole
- piston
- 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
Links
- 238000011010 flushing procedure Methods 0.000 title abstract description 13
- 238000007789 sealing Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 6
- 239000003129 oil well Substances 0.000 abstract description 16
- 238000005086 pumping Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model provides a well flushing tool comprising a seal pipe, a seal sliding sleeve, a spring and a lower joint, wherein, a communication hole is formed on the seal pipe, the seal sliding sleeve is installed in the seal pipe and covers the communication hole, the spring is arranged below the seal sliding sleeve, the seal sliding sleeve is supported by the spring, and the lower part of the seal pipe is always connected with the upper part of the lower joint. In communicating the seal pipe, all that is needed is to lower a pumping rod so as to enable the piston at the lower part of the pumping rod to press the seal sliding sleeve, for the seal sliding sleeve can overcome the elastic force stemming from the spring and descend to communicate the communication hole; and since the piston is shorter than the seal pipe, liquid streams at the upper part of the piston can flow from the communication hole to a sleeve so as to form a direct flushing passage which ensures direct flushing of an oil well. When oil well repairing is required, all that is needed is to dislodge the piston and lower the pumping rod to enable the seal sliding sleeve to descend and show from the communication hole for oil drainage, thereby not only avoiding environment pollution, but also facilitating operation of operators.
Description
Technical field:
The utility model relates to the device that oil field pumping well is used, and is a kind of washing well instrument.
Background technology:
Oil field pumping well adopts the oil well pump oil pumping, and inlet valve is arranged on the oil well pump, and inlet valve is unidirectional, liquid stream can only upwards flow into, and can not flow out from top to bottom, therefore, present oil well pump is well-flushing just, promptly can not squeeze into flushing fluid in oil pipe, and flushing fluid is gone out from the sleeve pipe internal return.Just well-flushing just can not be to oil well sand washing, and the oil well production time is short, deficiency in economic performance, and oil pipe can not draining, during workover treatment, the oil pipe inner fluid can not flow in the well, is ejected into ground, cause environment pollution, operator's operational difficulty is bigger to oil well production harm.
Summary of the invention:
The purpose of this utility model is a kind of washing well instrument of design, and the oil well that makes down oil well pump is well-flushing just, can draining during the oil well operation, and convenient working.
The purpose of this utility model is achieved in that sealed tube, sealing sliding sleeve, spring, lower contact composition, linked hole is arranged on the sealed tube, the sealing sliding sleeve is installed in the sealed tube and covers linked hole, under the sealing sliding sleeve is spring, the sealing sliding sleeve is supported by spring, and sealed tube always is connected with lower contact top down.
Sheath is installed in the spring, and the sheath bottom is fixed in the lower contact.
The beneficial effects of the utility model are: when sucker rod is transferred, the piston of sucker rod bottom is pressed in sealed sliding and puts, overcome behind the elastic force of spring descending, make linked hole UNICOM, therefore, the utility model can be realized positive well-flushing, prolong the oil well production cycle, also can oily intraluminal fluid be flowed and flow in the sleeve pipe, avoid environment pollution, handled easily workman operation.
Description of drawings:
Accompanying drawing is the assembling drawing of the utility model embodiment.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model embodiment is described.
See by figure, the utility model is made up of sealed tube 1, sealing sliding sleeve 2, spring 3, lower contact 5, linked hole 6 is arranged on the sealed tube 1, sealing sliding sleeve 2 is installed in the sealed tube 1 and covers linked hole 6, under the sealing sliding sleeve 2 is spring 3, sealing sliding sleeve 2 is supported by spring 3, and sealed tube always is connected with lower contact 5 tops for 1 time.Sheath 4 is installed in the spring 3, and spring 3 lower seat are on sheath 4, and sheath 4 bottoms are fixed in the lower contact.
Sealed tube 1 top connects with oil well pump pump barrel bottom, lower contact 5 bottoms are connected with oil-well pump oil inlet valve top, in the time of need making sealed tube UNICOM, when needing positive well-flushing in the normal oil pumping, sucker rod is transferred, the piston of sucker rod bottom is pressed on the sealing sliding sleeve 2, overcome behind the elastic force of spring 3 descendingly, make linked hole 6 UNICOMs, piston length is less than the length of sealed tube 1, therefore, liquid stream in piston top can flow to sleeve pipe from linked hole 6 and forms positive well-flushing passage and make just well-flushing of oil well.When oil well needs workover treatment, also can drop into sucker rod behind the proposition piston and make sealing sliding sleeve 2 descending linked hole 6 drainings that expose.
Claims (2)
1, a kind of washing well instrument, form by sealed tube (1), sealing sliding sleeve (2), spring (3), lower contact (5), it is characterized in that: linked hole (6) is arranged on the sealed tube (1), sealing sliding sleeve (2) is installed in the sealed tube (1) and covers linked hole (6), under the sealing sliding sleeve (2) is spring (3), sealing sliding sleeve (2) is supported by spring (3), and sealed tube (1) always is connected with lower contact (5) top down.
2, washing well instrument according to claim 1 is characterized in that: sheath (4) is installed in the spring (3), and sheath (4) bottom is fixed in the lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920023098U CN201381812Y (en) | 2009-03-13 | 2009-03-13 | Well flushing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920023098U CN201381812Y (en) | 2009-03-13 | 2009-03-13 | Well flushing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201381812Y true CN201381812Y (en) | 2010-01-13 |
Family
ID=41525288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920023098U Expired - Fee Related CN201381812Y (en) | 2009-03-13 | 2009-03-13 | Well flushing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201381812Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392618A (en) * | 2011-11-29 | 2012-03-28 | 中国石油集团长城钻探工程有限公司 | Pressure difference opening self-locking sliding sleeve |
| CN106869867A (en) * | 2017-04-10 | 2017-06-20 | 淄博东华石油技术有限公司 | Washing well coal bed gas extraction equipment |
-
2009
- 2009-03-13 CN CN200920023098U patent/CN201381812Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392618A (en) * | 2011-11-29 | 2012-03-28 | 中国石油集团长城钻探工程有限公司 | Pressure difference opening self-locking sliding sleeve |
| CN102392618B (en) * | 2011-11-29 | 2014-10-01 | 中国石油集团长城钻探工程有限公司 | Pressure difference opening self-locking sliding sleeve |
| CN106869867A (en) * | 2017-04-10 | 2017-06-20 | 淄博东华石油技术有限公司 | Washing well coal bed gas extraction equipment |
| CN106869867B (en) * | 2017-04-10 | 2023-03-03 | 淄博东华石油技术有限公司 | Washable coalbed methane extraction equipment |
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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: 20100113 Termination date: 20110313 |