CN205277363U - Novel double-cup packer capable of flushing well - Google Patents
Novel double-cup packer capable of flushing well Download PDFInfo
- Publication number
- CN205277363U CN205277363U CN201620034531.7U CN201620034531U CN205277363U CN 205277363 U CN205277363 U CN 205277363U CN 201620034531 U CN201620034531 U CN 201620034531U CN 205277363 U CN205277363 U CN 205277363U
- Authority
- CN
- China
- Prior art keywords
- outer tube
- cup
- leather cup
- well
- jacket
- 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 claims description 18
- 239000010985 leather Substances 0.000 claims abstract description 40
- 238000005406 washing Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 101150038956 cup-4 gene Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Closures For Containers (AREA)
Abstract
The utility model discloses a novel two leather cup packers of washable well solves the problem that can not wash the well behind the two leather cup packer card pump. The device comprises an upper joint, a central inner pipe, a central outer pipe, a leather cup mounting sleeve, an upper sheath, an outer pipe coupling, an outer pipe, a lower sheath and a lower joint; a well washing liquid inlet hole is designed at the upper part of the double-cup packer, a well washing liquid outlet hole is designed at the lower part of the double-cup packer, and a double-layer channel is established at the middle part of the double-cup packer through a double-layer pipe, so that the well washing purpose is achieved. And the purpose of sealing the annular space is achieved through good sealing between the packer cup and the inner wall of the casing.
Description
Technical field
The utility model relates to a kind of field produces pkr.
Background technology
At present the double leather cup pkr of application achieves the stifled water of overall tubing string of straight well, the anti-pollution target of low-pressure stratum, but after practical application has occurred part well holddown cannot the problem of well-flushing, cause repetition operation, have impact on inspection pump rate, add production cost.
Summary of the invention
The purpose of this utility model is to provide a kind of novel double leather cup pkr of washing well, and this pkr is by setting up the inner well-flushing passage of double leather cup pkr, it is achieved the function of the upper and lower well-flushing of plugged zone, and solving after double leather cup pkr holddown can not the problem of well-flushing.
In order to realize foregoing invention object, the technical solution adopted in the utility model is: a kind of novel double leather cup pkr of washing well, comprises top connection, central inner pipe, center outer tube, leather cup, leather cup installation sleeve, upper jacket, external pipe connection hoop, outer tube, lower jacket and lower sub, be threaded between top connection with lower sub central inner pipe, under top connection, square set has upper jacket, described upper jacket is uniform some longitudinal inlet openings circumferentially, dead center outer tube below upper jacket, annulus between central inner pipe and center outer tube is well-flushing passage, two upper leather cups are fixed by upper leather cup installation sleeve from top to bottom respectively in the outside of center outer tube, the lower section of leather cup permanent sleeve is threaded external pipe connection hoop, the lower section of external pipe connection hoop is threaded outer tube, the lower section of outer tube is threaded down cup installation sleeve, two down cups are fixed by down cup installation sleeve, lower jacket is fixed in the lower section of down cup, lower jacket is uniform some longitudinal fluid holes circumferentially.
The beneficial effects of the utility model: by going out well-flushing inlet opening in novel double leather cup pkr upper design, well-flushing fluid hole is designed in double leather cup pkr bottom, double wall tube is passed through at middle part, set up the inner well-flushing passage of double leather cup pkr, the function with the upper and lower well-flushing of plugged zone, solving double leather cup pkr can not the problem of well-flushing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the novel double leather cup pkr of the utility model washing well.
Fig. 2 is the structural representation of pkr upper semisection.
Fig. 3 is the structural representation of pkr lower semisection.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
By shown in Fig. 1 composition graphs 2, Fig. 3: a kind of novel double leather cup pkr of washing well, comprises top connection 1, upper jacket 2, central inner pipe 10, center outer tube 6, leather cup 4, leather cup installation sleeve 7, external pipe connection hoop 8, outer tube 9, lower jacket 11 and lower sub 13, be threaded between top connection 1 with lower sub 13 central inner pipe 10, top connection 1 time square set has upper jacket 2, described upper jacket 2 is uniform some longitudinal inlet openings 3 circumferentially, dead center outer tube 6 below upper jacket 2, annulus between central inner pipe 10 and center outer tube 6 is well-flushing passage 5, two upper leather cups 4 are fixed by upper leather cup installation sleeve 7 from top to bottom respectively in the outside of center outer tube 6, the lower section of leather cup permanent sleeve 7 is threaded external pipe connection hoop 8, the lower section of external pipe connection hoop 8 is threaded outer tube 9, the lower section of outer tube 9 is threaded down cup installation sleeve, two down cups are fixed by down cup installation sleeve, lower jacket 11 is fixed in the lower section of down cup, lower jacket 11 is uniform some longitudinal fluid holes 12 circumferentially.
This pkr is self-packing packer, after going into the well, relies on the small shrink of leather cup and casing inner diameter to make leather cup appropriateness be adjacent on internal surface of sleeve pipe, is separated by the annular space at upper and lower for pkr two ends. When leather cup flared end pressure is greater than the other end pressure, this pressure official post leather cup opens further, is attached on internal surface of sleeve pipe more tightly, thus makes packer cup and the good sealing of internal surface of sleeve pipe, reaches the object of packing annular space.
The application adopts built-up type double leather cup pkr, shutoff interval top, double leather cup pkr in employing, the integrated well-flushing passage of this pkr, and bottom connects outer tube and the annular passageway bridge of central inner pipe composition; Shutoff interval bottom, adopts lower double leather cup pkr, and well-flushing passage is in pkr bottom, and the annular passageway bridge that this pkr forms with central upper portion outer tube and central inner pipe is connected, and constitutes the double leather cup pkr combined string of shutoff upper formation.
After entering under tubing string, set packer, overlap annulus water injection from oil to suppress, the fluid inlet 3 of flushing fluid on upper jacket 2, enters well-flushing passage 5, cavity in the pipe formed by outer tube 9 and central inner pipe 10, enter lower double leather cup, liquid outlet 12 on lower jacket 11, reenters oil cover annular space, it is achieved anti-flushing well.
Claims (1)
1. the novel double leather cup pkr of washing well, comprises top connection, central inner pipe, center outer tube, leather cup, leather cup installation sleeve, upper jacket, external pipe connection hoop, outer tube, lower jacket and lower sub, it is characterized in that: be threaded between described top connection and lower sub central inner pipe, under top connection, square set has upper jacket, described upper jacket is uniform some longitudinal inlet openings circumferentially, dead center outer tube below upper jacket, annulus between central inner pipe and center outer tube is well-flushing passage, two upper leather cups are fixed by upper leather cup installation sleeve from top to bottom respectively in the outside of center outer tube, the lower section of upper leather cup permanent sleeve is threaded external pipe connection hoop, the lower section of external pipe connection hoop is threaded outer tube, the lower section of outer tube is threaded down cup installation sleeve, two down cups are fixed by down cup installation sleeve, lower jacket is fixed in the lower section of down cup, lower jacket is uniform some longitudinal fluid holes circumferentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620034531.7U CN205277363U (en) | 2016-01-14 | 2016-01-14 | Novel double-cup packer capable of flushing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620034531.7U CN205277363U (en) | 2016-01-14 | 2016-01-14 | Novel double-cup packer capable of flushing well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277363U true CN205277363U (en) | 2016-06-01 |
Family
ID=56061946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620034531.7U Expired - Fee Related CN205277363U (en) | 2016-01-14 | 2016-01-14 | Novel double-cup packer capable of flushing well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277363U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577915A (en) * | 2018-11-02 | 2019-04-05 | 中国石油天然气股份有限公司 | Compensation type anti-pollution well washing device and well washing method |
| CN115992658A (en) * | 2023-03-22 | 2023-04-21 | 山东成林石油工程技术有限公司 | Multi-pass jet flow blocking removal oil extraction device and use method |
-
2016
- 2016-01-14 CN CN201620034531.7U patent/CN205277363U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577915A (en) * | 2018-11-02 | 2019-04-05 | 中国石油天然气股份有限公司 | Compensation type anti-pollution well washing device and well washing method |
| CN115992658A (en) * | 2023-03-22 | 2023-04-21 | 山东成林石油工程技术有限公司 | Multi-pass jet flow blocking removal oil extraction device and use method |
| CN115992658B (en) * | 2023-03-22 | 2023-05-16 | 山东成林石油工程技术有限公司 | Multi-pass jet flow blocking removal oil extraction device and use method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20200114 |