CN2674079Y - Expanding type water injection well packer - Google Patents
Expanding type water injection well packer Download PDFInfo
- Publication number
- CN2674079Y CN2674079Y CN 200420018347 CN200420018347U CN2674079Y CN 2674079 Y CN2674079 Y CN 2674079Y CN 200420018347 CN200420018347 CN 200420018347 CN 200420018347 U CN200420018347 U CN 200420018347U CN 2674079 Y CN2674079 Y CN 2674079Y
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Abstract
The utility model discloses an expanding type water injection well sealing device for partition, which is composed of an upper contact, single-action valves, a double-action valve, a middle ring, a sealing rubber cylinder, a central tube and a lower contact, spherical seats are arranged at a valve core end in the single-action valve and a valve body corresponding to the valve core end; rigid spheres are arranged in the spherical seats; spherical seats are arranged at a valve core end at the lower end valve of the double-action valve and a lower valve body corresponding to the valve core end; rigid spheres are arranged in the spherical seats. The rubber sealing at the original valve core end corresponding to the valve body is altered to sphere rigid sealing of the utility model by increasing the number of the arranged single-action valve; the increased number of the arranged single-action valves correspondingly increases water inlet channels, shortens the release time of a rubber cylinder, and solves the problem that a water nozzle above 8 mm used as sealing needs temporary water nozzle blocking. The utility model is suitable for all partition type water injection and gathering injection wells of 51/2 sleeves and water blocking wells using machines of the 51/2 sleeves.
Description
Technical field: the water injection well packer that the utility model relates to specifically is an expanding water injection well packer.
Background technology: water injection well packer commonly used at present has two kinds: a kind of for compression packer, though this packer life-span is long, in washing well process, is prone to the well-flushing piston and meets the card phenomenon; Another kind of inflatable packer for valve control.Now with adopting rubber sealing between single-acting valve and the valve body in the inflatable packer, this hermetically-sealed construction is because the O-ring seal pressure-bearing is low, fragile, sealing performance, stability are poor, the application life of packer is short, and can't realize casting and dragging free (exempt from discharge) function for the above water nozzle of 8mm, can only set by discharging (or water blockoff mouth) temporarily realization.
Summary of the invention:
The purpose of this utility model provides a kind of new expanding water injection well packer, improve with the single, double application valve in the expanding water injection well packer former at above-mentioned deficiency, valve in the top connection is installed quantity be optimized again, to improve sealing performance, load performance and the application life of valve in the packer.
The utility model is achieved in that the spool end of single-acting valve in inflatable packer and the valve body corresponding with the spool end open spheric seat.The bottom spool end of double-purpose valve and the following valve body corresponding with the spool end are opened spheric seat, place rigid ball in the spheric seat, change the rubber seal at the corresponding valve body in former spool end place into the ball rigid seal, to improve sealing performance, load performance and application life.Increase the quantity that is provided with of single-acting valve, the inboard open walk of the corresponding packer top connection of each single-acting valve forms many passage water inlets, shortens the release time of packing element, solves the above water nozzle of 8mm and need discharge a difficult problem that sets.Only place a single-acting valve in the former design, can place 5 single-acting valves after the improvement at most, other connection of packer, working method are constant.
The utility model is applicable to 51/2, and " all seperated layer water injections, the injection well of sleeve pipe, " machine of sleeve pipe is adopted the water blockoff well also to be applicable to 51/2.
The utlity model has following advantage: compare with packer with former, change the rubber seal at the corresponding valve body in former spool end place into the ball rigid seal, the sealing performance of packer, load performance are good, long service life; By increasing the quantity that is provided with of single-acting valve, thoroughly solved a difficult problem that needs temporary water blockoff mouth when the above water nozzle of 8mm sets.Ground seal and pressure bearing≤the 25MPa of original product, the product ground seal and pressure bearing after the improvement has reached 35MPa.
Description of drawings:
Fig. 1 is an assembling schematic diagram of the present utility model;
Fig. 2 is a single, double application valve scheme of installation in the utility model;
Fig. 3 is the sectional view of Fig. 2;
Fig. 4 is the topology view of single-acting valve in the utility model;
Fig. 5 is the topology view of double-purpose valve in the utility model.
Among the figure: 16 times valve bodies of ring 5 cartridge 6 central tubes, 7 lower contact 8 valve bodies, 9 rigidity ball 10 spheric seats, 11 spring 12 valve seats, 13 upper valve body 14 upper valve cores, 15 springs, 17 rigidity balls, 18 spheric seats, 19 springs, 20 spools, 21 valve seats, 22 spools, 23 passages in 1 top connection, 2 single-acting valves, 3 double-purpose valves 4
The specific embodiment:
The specific embodiment of the present utility model can be referring to accompanying drawing, and Fig. 1 provides assembling schematic diagram of the present utility model, and Fig. 2 provides single, double application valve scheme of installation in the utility model.As shown in the figure, expanding water injection well packer is made up of top connection 1, single-acting valve 2, double-purpose valve 3, middle ring 4, cartridge 5, central tube 6, lower contact 7 etc.Single-acting valve 2, double-purpose valve 3 are in the inboard axial distribution of packer top connection.Axially place a double-purpose valve and 3 single-acting valves in the packer, Fig. 3 is the sectional view of Fig. 2.The supporting use of packer and eccentric injection mandrel, it is fixing to rely on oil pipe to hang.
Fig. 4 is the topology view of single-acting valve in the utility model, and spool 22 ends of single-acting valve 2, the valve body 8 corresponding with spool 22 ends are opened spheric seat 10, places rigid ball 9, each single-acting valve 2 corresponding packer top connection 1 inboard open walk 23 in the spheric seat 10.
Fig. 5 is the topology view of double-purpose valve in the utility model, and spool 20 ends of 3 times end valves of double-purpose valve, the following valve body 16 corresponding with spool 20 ends are opened spheric seat 18, places rigid ball 17 in the spheric seat 18.Single-acting valve 2, double-purpose valve 3 are connected by middle ring 4 with cartridge 5.
During use, water blockoff mouth temporarily, single-acting valve 2 actions when water injection pressure reaches 8-10MPa are injected water spreading cartridge 5 and can be realized setting.Single, double application valve 2,3 all move during normal water filling, and cartridge 5 spreadings are realized sealing.Because single-acting valve 2 be one way valve, so in normal water filling or stop under the notes state, the cartridge 5 of spreading can not shunk deblocking.When anti-flushing well, the pressure release passage in the packer is opened in double-purpose valve 3 action, and the cartridge 5 of spreading is shunk and realized well-flushings, when job execution by anti-flushing well deblocking automatically.
Claims (2)
1, a kind of expanding water injection well packer, form by top connection (1), single-acting valve (2), double-purpose valve (3), middle ring (4), cartridge (5), central tube (6), lower contact (7), it is characterized in that: spool (22) end in the single-acting valve (2) and the valve body (8) corresponding with spool (22) end are opened spheric seat (10), place rigid ball (9) in the spheric seat (10); Double-purpose valve (3) spool (20) end, the following valve body (16) corresponding with spool (20) end of end valve is down opened spheric seat (18), places rigid ball (17) in the spheric seat (18).
2, expanding water injection well packer according to claim 1 is characterized in that: single-acting valve (2) is axially placed 1～5 in packer top connection (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018347 CN2674079Y (en) | 2004-01-13 | 2004-01-13 | Expanding type water injection well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018347 CN2674079Y (en) | 2004-01-13 | 2004-01-13 | Expanding type water injection well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674079Y true CN2674079Y (en) | 2005-01-26 |
Family
ID=34483038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420018347 Expired - Fee Related CN2674079Y (en) | 2004-01-13 | 2004-01-13 | Expanding type water injection well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674079Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003158A (en) * | 2010-11-20 | 2011-04-06 | 中国石油集团西部钻探工程有限公司 | Base tube expandable packer capable of secondarily expanding at time of meeting medium |
| CN103764942A (en) * | 2011-09-13 | 2014-04-30 | 韦尔泰克有限公司 | Annular barrier with axial force mechanism |
| CN106321009A (en) * | 2016-09-14 | 2017-01-11 | 中国石油天然气股份有限公司 | Double-channel packer for concentric double-layer oil pipe separate injection |
| CN106593385A (en) * | 2016-12-02 | 2017-04-26 | 中国石油天然气股份有限公司 | Fracturing tool and staged fracturing string |
-
2004
- 2004-01-13 CN CN 200420018347 patent/CN2674079Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003158A (en) * | 2010-11-20 | 2011-04-06 | 中国石油集团西部钻探工程有限公司 | Base tube expandable packer capable of secondarily expanding at time of meeting medium |
| CN102003158B (en) * | 2010-11-20 | 2014-01-08 | 中国石油集团西部钻探工程有限公司 | Base tube expandable packer capable of secondarily expanding at time of meeting medium |
| CN103764942A (en) * | 2011-09-13 | 2014-04-30 | 韦尔泰克有限公司 | Annular barrier with axial force mechanism |
| US9708862B2 (en) | 2011-09-13 | 2017-07-18 | Welltec A/S | Annular barrier with axial force mechanism |
| CN106321009A (en) * | 2016-09-14 | 2017-01-11 | 中国石油天然气股份有限公司 | Double-channel packer for concentric double-layer oil pipe separate injection |
| CN106321009B (en) * | 2016-09-14 | 2019-02-15 | 中国石油天然气股份有限公司 | Double-channel packer for concentric double-layer oil pipe separate injection |
| CN106593385A (en) * | 2016-12-02 | 2017-04-26 | 中国石油天然气股份有限公司 | Fracturing tool and staged fracturing string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |