CN2538949Y - Layered water injection packer - Google Patents
Layered water injection packer Download PDFInfo
- Publication number
- CN2538949Y CN2538949Y CN 02203591 CN02203591U CN2538949Y CN 2538949 Y CN2538949 Y CN 2538949Y CN 02203591 CN02203591 CN 02203591 CN 02203591 U CN02203591 U CN 02203591U CN 2538949 Y CN2538949 Y CN 2538949Y
- Authority
- CN
- China
- Prior art keywords
- water injection
- packer
- injection packer
- layer water
- well
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 title claims abstract description 16
- 239000007924 injection Substances 0.000 title claims abstract description 16
- 238000011010 flushing procedure Methods 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract 3
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a separate layer water injection packer for oil field, its characteristics are: the supporting ring 18 is arranged on a notch at the lower part of the well washing piston 16, and a section of the inner circle in the middle of the connecting sleeve 15 is provided with a bidirectional inner chamfer. When the packer is tested and sealed, when the oil layer pressure of the lower part of the separate layer water injection packer is higher than the oil layer pressure of the upper part, the end part of the lower well washing piston 16 and the lower sealing rubber 14 are in a completely sealed state under the action of the supporting ring 18, the pressure can not push the lower well washing piston 16 to enter the upper part of the packer, reverse string can not be formed, the accuracy of seal testing data is ensured, the well repairing operation caused by the inaccuracy of the seal testing data is avoided, and the well repairing cost is saved.
Description
The utility model relates to a kind of seperated layer water injection packer that is used for the oil field.
At present, in the separated-zone water infection oil field, often need admission test the envelope data, and the seperated layer water injection packer of The field at present,, cause the data of admission inaccurate because packer two ends formation pressure difference is up and down tested Feng Shihui and produced the phenomenon of playing a reversed role.
Task of the present utility model is to provide a kind of seperated layer water injection packer that is used for the oil field, adopt this seperated layer water injection packer, can effectively prevent to test the envelope phenomenon of the time playing a reversed role, accurate thereby the data that envelope enrolls is tested in assurance, avoid being forbidden to cause workover treatment, save workover cost because of testing the envelope data.
The utility model is to realize like this, it is by top connection 1, sealing ring 2, top cover 3, sealing ring 4, last well-flushing piston 5, inner central tube 6, exterior central tube 7, long packing element type 8, spacer ring 9, short rubber cylinder 10, dog screw 11, lining ring 12, joint ring 13, lower seal rubber 14, adapter sleeve 15, following well-flushing piston 16, sealing ring 17, filler ring 18, sealing ring 19, lock ring cover 20, shear pin 21, lock ring 22, lock tube 23, shear pin 24, retainer ring 25, lower contact 26 is formed, its assembling process is as follows: the sealing ring of first-class each parts of elder generation, top connection 1 is connected with inner central tube 6, last well-flushing piston 5 is inserted on the inner central tube 6, top cover 3 is connected with top connection 1, exterior central tube 7 is connected with top cover 3, fixing with dog screw 11 with lining ring 12, first-class long packing element type 8, put spacer ring 9 well, first-class short rubber cylinder 10, put spacer ring 9 well, first-class long packing element type 8, first-class joint ring 13, filler ring 18 is contained in down in the 16 bottom cuttings of well-flushing piston, again well-flushing piston 16 is inserted on the inner central tube 6, adapter sleeve 15 is connected with joint ring 13, lock ring cover 20 usefulness pins 21 are fixed in the lower contact 26, first-class lock ring 22, lower contact 26 is connected with inner central tube 6, adapter sleeve 15 is connected with lock tube 23, retainer ring 25 is connected with lower contact 26, and first-class shear pin 24 is promptly assembled and finished.
During use, with this seperated layer water injection packer with the same G.I.H of common seperated layer water injection packer, when testing envelope, when seperated layer water injection packer bottom formation pressure is higher than the top formation pressure, because the effect of filler ring 18, the end of following well-flushing piston 16 and lower seal rubber 14 are in complete sealing state, and pressure can not be pushed down well-flushing piston 16 open and enter packer top, can not form and play a reversed role, it is accurate to have guaranteed to test the envelope data.
The utility model novel structure, easy to operate, can be widely used in the separated-zone water infection oil field, adopt this seperated layer water injection packer, can effectively prevent to test the envelope phenomenon of the time playing a reversed role, accurate thereby the data that envelope enrolls is tested in assurance, avoid being forbidden to cause workover treatment, save workover cost because of testing the envelope data.
Accompanying drawing is the utility model general structure schematic diagram.
Below in conjunction with accompanying drawing enforcement of the present utility model is further described.
Accompanying drawing shows structure of the present utility model.One cutting is arranged at following well-flushing piston 16 bottoms; Filler ring 18 is circular and a little opening is arranged, and the cutting size of internal diameter and well-flushing piston 16 bottoms matches, and the cylindrical end face has chamfering; Circle has two-way interior chamfering for one section in adapter sleeve 15 middle parts; All the other each parts are finished parts.
Claims (4)
1, a kind of seperated layer water injection packer that is used for the oil field comprises: adapter sleeve (15), following well-flushing piston (16) is characterized in that: also comprise filler ring (18), and filler ring (18) is contained in down well-flushing piston (16) bottom.
2, the described a kind of seperated layer water injection packer that is used for the oil field of root a tree name claim 1 is characterized in that: circle has two-way interior chamfering for one section in adapter sleeve (15) middle part.
3, the described a kind of seperated layer water injection packer that is used for the oil field of root a tree name claim 1, it is characterized in that: a cutting is arranged at following well-flushing piston (16) bottom.
4, the described a kind of seperated layer water injection packer that is used for the oil field of root a tree name claim 1, it is characterized in that: filler ring (18) is circular and a little opening is arranged, and the cylindrical end face has chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203591 CN2538949Y (en) | 2002-03-01 | 2002-03-01 | Layered water injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02203591 CN2538949Y (en) | 2002-03-01 | 2002-03-01 | Layered water injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2538949Y true CN2538949Y (en) | 2003-03-05 |
Family
ID=33685724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02203591 Expired - Lifetime CN2538949Y (en) | 2002-03-01 | 2002-03-01 | Layered water injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2538949Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386183A (en) * | 2018-01-16 | 2018-08-10 | 中国石油天然气股份有限公司 | Seal testing, measuring and adjusting method, device and system for concentric water injection well |
-
2002
- 2002-03-01 CN CN 02203591 patent/CN2538949Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386183A (en) * | 2018-01-16 | 2018-08-10 | 中国石油天然气股份有限公司 | Seal testing, measuring and adjusting method, device and system for concentric water injection well |
| CN108386183B (en) * | 2018-01-16 | 2022-05-10 | 中国石油天然气股份有限公司 | Seal testing, measuring and adjusting method, device and system for concentric water injection well |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120301 Granted publication date: 20030305 |