CN201159064Y - Minor diameter expanding type washable well zonal injection packer - Google Patents
Minor diameter expanding type washable well zonal injection packer Download PDFInfo
- Publication number
- CN201159064Y CN201159064Y CNU2008200893340U CN200820089334U CN201159064Y CN 201159064 Y CN201159064 Y CN 201159064Y CN U2008200893340 U CNU2008200893340 U CN U2008200893340U CN 200820089334 U CN200820089334 U CN 200820089334U CN 201159064 Y CN201159064 Y CN 201159064Y
- Authority
- CN
- China
- Prior art keywords
- well
- water injection
- urceolus
- packing element
- central tube
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000011010 flushing procedure Methods 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 34
- 210000004907 gland Anatomy 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 210000000664 rectum Anatomy 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to an expanding type well-flushing packer with small diameter and zonal water injection relates to a packer, which solves the problems that the minimum external diameter of the steel body of the existing packer with small diameter and zonal water injection is at least 95mm, and that the zonal water injection and the well-flushing can not be realized on a casing water injection well whose minimum diameter is less than 105 mm. The pipe walls of the novel center pipe of the utility model is provided with a fluid channel, a liquid intake hole, a liquid outtake hole and an upper liquid flowing hole, wherein the center pipe is installed in a rubber cylinder, an upper outer cylinder is arranged on the upper end of the rubber cylinder, the upper end of the upper outer cylinder is provided with a limiting ring and a one-way valve, the lower outer cylinder is connected with the rubber cylinder, a lower outer cylinder pressing sleeve is arranged on the lower end of the lower outer sleeve, a well-flushing piston is arranged on the external diameter of the center pipe, the external diameters of the rubber cylinder, the upper outer cylinder, the lower outer cylinder, the well-flushing piston and an upper joint are all phi 90mm, and the inner diameter of the center pipe is phi 46mm. The packer enables a casing water injection well with 5(1/2) inch whose minimum diameter is larger than phi 100mm to realize the zonal water injection, and improves the zonal water injection rate of a water injection well of the oil field.
Description
Technical field
The utility model relates to a kind of packer.
Background technology
Daqing oil field is used for 5 at present
1/
2The minor diameter seperated layer water injection packer steel body diameter minimum of inch sleeve pipe is 95mm, on the cover damage water injection well of minimum latus rectum, can not realize seperated layer water injection less than 105mm, nor the energy well-flushing has influenced the raising of water injection well in oil fields dispensing rate, can not satisfy the requirement of regular cleaning pit shaft.
The utility model content
The purpose of this utility model is for solving the minimum 95mm of being of existing minor diameter seperated layer water injection packer steel body diameter, decrease less than the cover of 105mm at minimum latus rectum and can't realize seperated layer water injection and problem that can not well-flushing on the water injection well, a kind of expanding washing well seperated layer water injection packer is provided.
The utility model is by top connection 1, well-flushing piston 2, central tube 3, upper center tube cover 12, lower center tube cover 13, last urceolus gland 4, one way valve 5, spacing ring 6, last urceolus 7, packing element 8, following urceolus 9, following urceolus gland 10 and lower contact 11 are formed, the tube wall of central tube 3 is provided with fluid course 31, inlet opening 32, outage 33 and last liquid-through hole 34, central tube 3 is arranged in the packing element 8, upper center tube cover 12 is arranged between the top packing element 8 and central tube 3 of packing element 8, last urceolus 7 is arranged on the upper end of packing element 8, the upper end of last urceolus 7 and upper center tube cover 12 is provided with spacing ring 6, the upper end of spacing ring 6 is provided with one way valve 5, the external surface of one way valve 5 and spacing ring 6 is provided with urceolus gland 4, lower center tube cover 13 is arranged between the below packing element 8 and central tube 3 of packing element 8, following urceolus 9 is arranged on the lower end of packing element 8, the lower end of following urceolus 9 and lower center tube cover 13 is provided with down urceolus gland 10, the lower end of central tube 3 is connected with the upper end of lower contact 11, well-flushing piston 2 is arranged on the upper end external surface of central tube 3, the top of well-flushing piston 2 and central tube 3 is connected with the lower end of top connection 1, the external diameter of packing element 8, the external diameter of last urceolus 7, the external diameter of following urceolus 9, the external diameter of the external diameter of well-flushing piston 2 and top connection 1 is φ 90mm, and the internal diameter of central tube 3 is φ 46mm.
The utility model has the advantages that: the utility model can make minimum latus rectum greater than 5 of φ 100mm
1/
2The inch casing pipe sleeve decreases water injection well and realizes seperated layer water injection and washing well, has improved the dispensing rate of water injection well in oil fields.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1, present embodiment is by top connection 1, well-flushing piston 2, central tube 3, upper center tube cover 12, lower center tube cover 13, last urceolus gland 4, one way valve 5, spacing ring 6, last urceolus 7, packing element 8, following urceolus 9, following urceolus gland 10 and lower contact 11 are formed, the tube wall of central tube 3 is provided with fluid course 31, inlet opening 32, outage 33 and last liquid-through hole 34, central tube 3 is arranged in the packing element 8, upper center tube cover 12 is arranged between the top packing element 8 and central tube 3 of packing element 8, last urceolus 7 is arranged on the upper end of packing element 8, and be threaded with upper center tube cover 12, the upper end of last urceolus 7 and upper center tube cover 12 is provided with spacing ring 6, the upper end of spacing ring 6 is provided with one way valve 5, the external surface of one way valve 5 and spacing ring 6 is provided with urceolus gland 4, lower center tube cover 13 is arranged between the below packing element 8 and central tube 3 of packing element 8, following urceolus 9 is arranged on the lower end of packing element 8, and be threaded with lower center tube cover 13, the lower end of following urceolus 9 and lower center tube cover 13 is provided with down urceolus gland 10, the lower end of central tube 3 is connected with the upper end of lower contact 11, well-flushing piston 2 is arranged on the upper end external surface of central tube 3, the top of well-flushing piston 2 and central tube 3 is connected with the lower end of top connection 1, the upper end of the lower end of last urceolus gland 4 and last urceolus 7, the external surface of the inner surface of last urceolus 7 and upper center tube cover 12, the external surface of the inner surface of following urceolus 9 and lower center tube cover 13, the lower end of the upper end of following urceolus gland 10 and following urceolus 9, the upper end of lower contact 11 is threaded respectively with the lower end of central tube 3 and afterwards welds, the external diameter of packing element 8, the external diameter of last urceolus 7, the external diameter of following urceolus 9, the external diameter of the external diameter of well-flushing piston 2 and top connection 1 is φ 90mm, and the internal diameter of central tube 3 is φ 46mm.This structure can be 5
1/
2Realize seperated layer water injection and washing well on the inch cased well, reach the requirement of geology seperated layer water injection scheme.
The course of work of the present utility model: arrive the utility model in the sleeve pipe of down-hole down, the down-hole oil tube pressurization, water under high pressure flows to central tube 3 outsides from the inlet opening 32 of central tube 3, behind one way valve 5 and spacing ring 6, enter in the packing element 8, promote packing element 8 expansions, packing element 8 is set, and when the oil pipe inside and outside differential pressure reaches 4MPa when above, packer is in the state of setting.When stopping the oil fuel tube internal pressure when reducing, because the effect of one way valve 5, the liquid in the packing element 8 return less than in the oil pipe, so packer deblocking not.When stopping annotating well-flushing, because of the pressure of the annular space between sleeve pipe and the oil pipe greater than the pressure in the oil pipe, well-flushing piston 2 is descending under the effect of this pressure reduction, fluid course 31 on the central tube 3 is communicated with oil pipe is interior, liquid is just got back in the oil pipe by the last liquid-through hole 34 that former cause well-flushing piston is sealed in the packing element 8, so shrink deblocking at the elastic force effect lower rubber cylinder 8 of packing element 8.When behind the well-flushing once more during water filling, when the oil pipe internal pressure was above greater than cover ring compression 4MPa, packing element 8 set again, and well-flushing piston 2 is pushed back initial position by the oil pipe internal pressure again and seals liquid-through hole 34.
Claims (1)
1, a kind of minor diameter expanding washing well seperated layer water injection packer, it is by top connection (1), well-flushing piston (2), central tube (3), upper center tube cover (12), lower center tube cover (13), last urceolus gland (4), one way valve (5), spacing ring (6), last urceolus (7), packing element (8), following urceolus (9), following urceolus gland (10) and lower contact (11) are formed, the tube wall of central tube (3) is provided with fluid course (31), inlet opening (32), outage (33) and last liquid-through hole (34), central tube (3) is arranged in the packing element (8), upper center tube cover (12) is arranged between the top packing element (8) and central tube (3) of packing element (8), last urceolus (7) is arranged on the upper end of packing element (8), the upper end of last urceolus (7) and upper center tube cover (12) is provided with spacing ring (6), the upper end of spacing ring (6) is provided with one way valve (5), the external surface of one way valve (5) and spacing ring (6) is provided with urceolus gland (4), lower center tube cover (13) is arranged between the below packing element (8) and central tube (3) of packing element (8), following urceolus (9) is arranged on the lower end of packing element (8), the lower end of following urceolus (9) and lower center tube cover (13) is provided with down urceolus gland (10), the lower end of central tube (3) is connected with the upper end of lower contact (11), well-flushing piston (2) is arranged on the upper end external surface of central tube (3), the top of well-flushing piston (2) and central tube (3) is connected with the lower end of top connection (1), the external diameter that it is characterized in that packing element (8), the external diameter of last urceolus (7), the external diameter of following urceolus (9), the external diameter of the external diameter of well-flushing piston (2) and top connection (1) is φ 90mm, and the internal diameter of central tube (3) is φ 46mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200893340U CN201159064Y (en) | 2008-02-29 | 2008-02-29 | Minor diameter expanding type washable well zonal injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200893340U CN201159064Y (en) | 2008-02-29 | 2008-02-29 | Minor diameter expanding type washable well zonal injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159064Y true CN201159064Y (en) | 2008-12-03 |
Family
ID=40109650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200893340U Expired - Fee Related CN201159064Y (en) | 2008-02-29 | 2008-02-29 | Minor diameter expanding type washable well zonal injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159064Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906949A (en) * | 2010-08-23 | 2010-12-08 | 中国石油集团西部钻探工程有限公司 | Underbalanced well completion tool |
| CN101915070A (en) * | 2010-08-23 | 2010-12-15 | 东营市兆鑫工贸有限责任公司 | Expanding open hole packer |
| CN102071900A (en) * | 2010-11-23 | 2011-05-25 | 中国石油天然气股份有限公司 | Self-pressurized expandable open hole packer |
| EP3020912A1 (en) * | 2014-11-12 | 2016-05-18 | Welltec A/S | Annular barrier with closing mechanism |
| CN110195578A (en) * | 2019-03-18 | 2019-09-03 | 中国石油化工股份有限公司 | The seperated layer water injection system of small casing pipe well |
| CN110847846A (en) * | 2020-01-15 | 2020-02-28 | 山东博赛特石油技术有限公司 | Well washing protection integrated packer and method |
| CN112855096A (en) * | 2021-02-03 | 2021-05-28 | 李青 | Simple separate layer water injection string |
| CN116066012A (en) * | 2023-02-14 | 2023-05-05 | 中国石油化工股份有限公司 | Small-diameter expansion packer |
-
2008
- 2008-02-29 CN CNU2008200893340U patent/CN201159064Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906949A (en) * | 2010-08-23 | 2010-12-08 | 中国石油集团西部钻探工程有限公司 | Underbalanced well completion tool |
| CN101915070A (en) * | 2010-08-23 | 2010-12-15 | 东营市兆鑫工贸有限责任公司 | Expanding open hole packer |
| CN101906949B (en) * | 2010-08-23 | 2013-01-09 | 中国石油集团西部钻探工程有限公司 | Underbalanced well completion tool |
| CN101915070B (en) * | 2010-08-23 | 2013-01-23 | 东营市兆鑫工贸有限责任公司 | Expanding open hole packer |
| CN102071900A (en) * | 2010-11-23 | 2011-05-25 | 中国石油天然气股份有限公司 | Self-pressurized expandable open hole packer |
| CN102071900B (en) * | 2010-11-23 | 2013-04-24 | 中国石油天然气股份有限公司 | Self-pressurized expandable open hole packer |
| EP3020912A1 (en) * | 2014-11-12 | 2016-05-18 | Welltec A/S | Annular barrier with closing mechanism |
| WO2016075192A1 (en) * | 2014-11-12 | 2016-05-19 | Welltec A/S | Annular barrier with closing mechanism |
| AU2015345113B2 (en) * | 2014-11-12 | 2019-01-24 | Welltec Manufacturing Center Completions ApS | Annular barrier with closing mechanism |
| US10526865B2 (en) | 2014-11-12 | 2020-01-07 | Welltec Oilfield Solutions Ag | Annular barrier with closing mechanism |
| CN110195578A (en) * | 2019-03-18 | 2019-09-03 | 中国石油化工股份有限公司 | The seperated layer water injection system of small casing pipe well |
| CN110195578B (en) * | 2019-03-18 | 2023-05-12 | 中国石油化工股份有限公司 | Separate layer water injection system of small cased well |
| CN110847846A (en) * | 2020-01-15 | 2020-02-28 | 山东博赛特石油技术有限公司 | Well washing protection integrated packer and method |
| CN112855096A (en) * | 2021-02-03 | 2021-05-28 | 李青 | Simple separate layer water injection string |
| CN116066012A (en) * | 2023-02-14 | 2023-05-05 | 中国石油化工股份有限公司 | Small-diameter expansion 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20160229 |