CN203285385U - Hydraulic control packer - Google Patents
Hydraulic control packer Download PDFInfo
- Publication number
- CN203285385U CN203285385U CN2013202816655U CN201320281665U CN203285385U CN 203285385 U CN203285385 U CN 203285385U CN 2013202816655 U CN2013202816655 U CN 2013202816655U CN 201320281665 U CN201320281665 U CN 201320281665U CN 203285385 U CN203285385 U CN 203285385U
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Abstract
The utility model discloses a hydraulic control packer. The hydraulic control packer comprises an inner pipe, a pressure transmitting pipe, a hydraulic sleeve, a piston, a blocking sleeve, a rubber barrel and a lower joint, wherein the hydraulic sleeve is connected to the inner pipe; the piston is arranged in the hydraulic sleeve; the inner wall of the piston is matched with the outer wall of the inner pipe for sealing; the outer wall of the piston is matched with the inner wall of the hydraulic sleeve for sealing; the rubber barrel is sheathed on the inner pipe and is positioned under the piston; the lower joint is connected to the lower part of the inner pipe; the rubber barrel is seated on the lower joint; the inner pipe is provided with a communicating hole; the blocking sleeve is arranged in the lower part of the piston and is positioned under the communicating hole; the blocking sleeve is matched with the outer wall of the inner pipe for sealing; the blocking sleeve is seated on the rubber barrel; the pressure transmitting pipe is arranged on the hydraulic sleeve and is communicated with the upper part of the piston; when a well needs to be washed, the pressure is applied into the pressure transmitting pipe on the ground, the piston is pushed by hydraulic pressure to descend and compress the rubber barrel, so that the outer diameter of the rubber barrel is expanded to seal the sleeve; after the well washing is finished, the pressure is stopped from being applied to the pressure transmitting pipe, the thrust of the piston is dispears, the rubber barrel is retracted without coming into contact with the sleeve, and can not be damaged during oil pumping, the production requirement can be met.
Description
Technical field
The utility model belongs to the tool of production of using in oil well, particularly a kind of hydraulic control packer.
Background technology
In oil well, the frequent well-flushing of some well needs just can be kept oil well and normally produce.Pumping and washing process is that hot fluid is squeezed in sleeve pipe, and oil-in enters in oil pipe under pump, then through oil well pump, upwards returns out in oil pipe on pump.Because the oil-well strata pressure that has is low, can not return out in oil pipe from the hot fluid of squeezing in sleeve pipe, be injected in stratum.Some stratum are very responsive to the hot fluid that injects, and are incompatible, and cause formation contaminant, destroy oil reservoir, cause that oil well is not fuel-displaced.Therefore flushing fluid and stratum should be separated, prevent that flushing fluid from entering stratum.The existing way that separates stratum is to adopt common packer, easily causes tubing bending on pump when setting, causes the rod tube wearing and tearing; The existing way that separates stratum also has to adopt suppresses setting hydraulic packer in oil pipe, but after being arranged on pump, this packer is in all the time setting state, be not suitable for having in flexible environment and working at tubing string, because pumping pipe string up-down stroke with oil well pump when work is flexible, packing element together with sleeve pipe tightly is posted on is damaged, cause packer short application life.
Summary of the invention
The purpose of this utility model is a kind of hydraulic control packer of design, makes its packer protection of pipe stratum when well-flushing.
the purpose of this utility model is achieved in that and comprises inner tube, pressure tube, hydraulic sleeve, piston, stifled cover, packing element, lower contact, hydraulic sleeve connects on inner pipe, piston is arranged in hydraulic sleeve, the outer wall fitted seal of the inwall of piston and inner tube, the inwall fitted seal of the outer wall of piston and hydraulic sleeve, the packing element suit on inner pipe, packing element is under piston, lower contact is connected to the bottom of inner tube, glue tube base is in lower contact, linked hole is arranged on inner tube, under piston, there is stifled cover inside, stifled cover is under linked hole, the outer wall fitted seal of stifled cover and inner tube, stifled block set is on packing element, pressure tube is arranged on hydraulic sleeve, pressure tube communicates with the top of piston.
The beneficial effects of the utility model are: while needing well-flushing, suppress in pressure tube on ground, hydraulic drive descent of piston compression packing element, make packing element expanded outer diameter Sealed casing pipe, well-flushing stops suppressing in pressure tube after finishing, and piston thrust disappears, packing element reclaims, with sleeve pipe, do not contact, can be not damaged during oil pumping, can meet production requirement.
Description of drawings
Accompanying drawing is assembling drawing of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
as seen from the figure, embodiment of the present utility model comprises inner tube 1, pressure tube 2, hydraulic sleeve 3, piston 4, stifled cover 7, packing element 8, lower contact 9, hydraulic sleeve 3 is connected on inner tube 1, by being threaded togather, piston 4 is arranged in hydraulic sleeve 3, the outer wall fitted seal of the inwall of piston 4 and inner tube 1, realize sealing by sealing ring, the inwall fitted seal of the outer wall of piston 4 and hydraulic sleeve 3, realize sealing by sealing ring, packing element 8 is sleeved on inner tube 1, packing element 8 is under piston 4, lower contact 9 is connected to the bottom of inner tube 1, 8 of packing elements are in lower contact 9, linked hole 6 is arranged on inner tube 1, there is stifled cover 7 the lower inside of piston 4, stifled cover 7 is under linked hole 6, the outer wall fitted seal of stifled cover 7 and inner tube 1, realize sealing by sealing ring, stifled cover 7 and piston 4 can be one can be also split, if split, between stifled cover 7 and piston 4, sealing ring to be installed, block up and overlap 7 on packing element 8, pressure tube 2 is arranged on hydraulic sleeve 3, pressure tube 2 communicates with the top of piston 4, hydraulic pressure can be passed on the upper surface of piston 4 when suppressing in pressure tube 2.Install and be connected pin 5 between hydraulic sleeve 3 and piston 4, when it is gone into the well piston 4 do not fall to compressing packing element 8, guarantee steadily to go into the well, avoid damage packing element 8 in the process of going into the well.
While needing well-flushing, suppress in pressure tube 2 on ground, the descending compression packing element 8 of hydraulic drive piston 4, make packing element 8 expanded outer diameter Sealed casing pipes, squeeze into flushing fluid in sleeve pipe, flushing fluid enters in oil pipe and forms circulation canal from the coupling cock on the utility model top, realizes well-flushing, during well-flushing, flushing fluid can not enter stratum, eliminates the contaminated problem in stratum.
Claims (2)
1. hydraulic control packer, comprise inner tube (1), pressure tube (2), hydraulic sleeve (3), piston (4), stifled cover (7), packing element (8), lower contact (9), it is characterized in that: hydraulic sleeve (3) is connected on inner tube (1), piston (4) is arranged in hydraulic sleeve (3), the outer wall fitted seal of the inwall of piston (4) and inner tube (1), the inwall fitted seal of the outer wall of piston (4) and hydraulic sleeve (3), packing element (8) is sleeved on inner tube (1), packing element (8) is under piston (4), lower contact (9) is connected to the bottom of inner tube (1), packing element (8) seat is in lower contact (9), linked hole (6) is arranged on inner tube (1), there is stifled cover (7) the lower inside of piston (4), stifled cover (7) is under linked hole (6), the outer wall fitted seal of stifled cover (7) and inner tube (1), stifled cover (7) seat is on packing element (8), pressure tube (2) is arranged on hydraulic sleeve (3), pressure tube (2) communicates with the top of piston (4).
2. hydraulic control packer according to claim 1 is characterized in that: install and be connected pin (5) between hydraulic sleeve (3) and piston (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202816655U CN203285385U (en) | 2013-05-14 | 2013-05-14 | Hydraulic control packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202816655U CN203285385U (en) | 2013-05-14 | 2013-05-14 | Hydraulic control packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285385U true CN203285385U (en) | 2013-11-13 |
Family
ID=49541754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202816655U Expired - Lifetime CN203285385U (en) | 2013-05-14 | 2013-05-14 | Hydraulic control packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285385U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812507A (en) * | 2015-11-30 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN112709557A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
| CN112709555A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Efficient separate-prevention separate-injection tubular column for water injection well and construction method |
-
2013
- 2013-05-14 CN CN2013202816655U patent/CN203285385U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812507A (en) * | 2015-11-30 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
| CN106812507B (en) * | 2015-11-30 | 2018-12-28 | 中国石油化工股份有限公司 | A kind of well pressure control hierarchy packing water injection string |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN112709557A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
| CN112709555A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Efficient separate-prevention separate-injection tubular column for water injection well and construction method |
| CN112709556B (en) * | 2019-10-24 | 2022-12-06 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN112709557B (en) * | 2019-10-24 | 2022-12-06 | 中国石油化工股份有限公司 | Safe and long-acting water injection string for offshore oil field and construction method |
| CN112709555B (en) * | 2019-10-24 | 2023-02-21 | 中国石油化工股份有限公司 | Efficient separate-prevention separate-injection tubular column for water injection well and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
|
| CX01 | Expiry of patent term |