CN201068779Y - Eccentric center water-dispensing packer - Google Patents
Eccentric center water-dispensing packer Download PDFInfo
- Publication number
- CN201068779Y CN201068779Y CNU2007200848069U CN200720084806U CN201068779Y CN 201068779 Y CN201068779 Y CN 201068779Y CN U2007200848069 U CNU2007200848069 U CN U2007200848069U CN 200720084806 U CN200720084806 U CN 200720084806U CN 201068779 Y CN201068779 Y CN 201068779Y
- Authority
- CN
- China
- Prior art keywords
- water
- main body
- central tube
- injection well
- flow regulator
- 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
Abstract
The utility model discloses an eccentricity water distribution packer, which mainly comprises an upper tie-in, an upper main body of a water distributor which is provided with a deflection hole, an eccentricity main body provided with an upper inhalant canal arranged on the upper part, a lower inhalant canal arranged at the middle part, and a pinhole on the lower part, a water diversion joint, a backwashing switch provided with a water backwashing inlet, an inner central tube, a packer rubber cylinder, an outer central tube, a lower main body of the water distributor and a lower tie-in which are connected from top to bottom. and deflection hole arranged on the upper main body of the water distributor is provided and connected with a two-stage blanking plug. The upper inhalant canal, an exhalant canal and the lower inhalant canal are formed among the component of the utility model. The two-stage blanking plug comprises a fishing rod, a fulcrum bearing seat provided with an upper water intake, a cam, an upper water faucet, a connector provided with an upper water outlet on the upper end and a lower water intake on the lower end, a lower water faucet, a bottom cover provided with a water outlet on the lower end, which are connected from top to bottom. The utility model has the advantages of allocating the water faucets on two water injection layer in one salvage, therefore can realize accurate separate zone waterflooding without the limit of the block distance at the same time, can realize monobloc stratified discharge measurement, reduce the underground tool quantity, and alleviate the work intensity for workers.
Description
Affiliated technical field
The utility model relates to a kind of water injection well in oil fields seperated layer water injection water distribution instrument, especially relates to the integrated eccentric center water-distributing packer of a kind of separate water injection well injection well downhole flow regulator and packer.
Background technology
Oil-field flooding is one of important method of oil reservoir voltage stabilizing, volume increase, in the oil reservoir of heterogeneous body multiple zone, because interlayer contradiction is outstanding, injects water and advances by leaps and bounds fast along high permeability zone, and the oil well water breakthrough is fast.For make each development layer can both injecting enough water, injecting good water, reach the purpose of water and oil control simultaneously, seperated layer water injection is often carried out in the oil field on stream, the separated-zone water infection oil field tubing string is mainly eccentric separate layer water injection string at present, and eccentric injection mandrel is the important tool of eccentric separate layer water injection string, works to hold blanking plug, distributes current.
At present the eccentric injection mandrel that the known separate water injection well in oil field is commonly used exists pulling, zonal testing workload big, because card can't satisfy the subdivision injection needs apart from restriction, and can only adopt diminishing method to carry out stratified flow rate test, there is the bigger technical problem of test error, mainly constitutes by being threaded by upper shell, injection well downhole flow regulator main body, central tube, packing element, seating nipple, integrated blanking plug, middle shell, last sleeve pipe, setting of casing as the integrated injection well downhole flow regulator of a kind of off-centre (patent No. CN02281534.1).But should there be following problem by the integrated injection well downhole flow regulator of off-centre: do not have the anti-flushing well function; Because structure design, the separate injection tubing string dispensing number of plies of composition is restricted, at most can only dispensing 4 layers; When the test a bite dispensing number of plies is 4 layers a water injection well, need to use the special-purpose assorted tester of two kinds of specifications.
Summary of the invention
Use the deficiency that exists at the scene in order to overcome prior art, the utility model provides a kind of eccentric center water-distributing packer, this packer not only has the anti-flushing well function, and it is unrestricted also to have the dispensing number of plies, adjustable two water nozzles of a pulling, only need a kind of special-purpose assorted tester of specification, test a bit can record two individual layer zonal flow rates, pressure, temperature data, has reduced test error, is not subjected to card apart from restriction, can the subdivision of reservoir water filling, reduced the characteristics of downhole tool quantity.
The technical scheme that its technical problem that solves the utility model adopts is: top connection, design have main body, top on the injection well downhole flow regulator in inclined to one side hole to be provided with eccentric main body, return connector, design that intake tunnel, middle part be provided with down intake tunnel, lower end design aperture and have that main body, lower contact connect under the backwash switch of backwash water import, inner central tube, packing rubber sleeve, exterior central tube, the injection well downhole flow regulator from top to bottom, installation twin-stage blanking plug connection and constituting in the inclined to one side hole of designing on the main body on its injection well downhole flow regulator.Form therebetween and go up intake tunnel, upper water-out passage, following intake tunnel.The twin-stage blanking plug by fishing rod, design have last water inlet supporting base, cam, go up water nozzle, the upper end has the upper water-out mouth, cover and connect from top to bottom and constitute at the end that connector, time water nozzle, the lower end that the lower end has down a water inlet has a delivery port.The utility model is equivalent to a cover packer and the two cover eccentric injection mandrels of conventional separate injection tubing string, the water nozzle of adjustable two the water filling layers of pulling, be not subjected to simultaneously card to realize the subdivision of reservoir water filling apart from restriction, can realize the individual layer stratified flow rate test, reduce downhole tool quantity, alleviated the advantage of labor strength.
The beneficial effects of the utility model are, can reduce pulling, the zonal testing workload of separated-zone water infection oil field, have alleviated labor strength; Be not subjected to the restriction of the dispensing number of plies, card distance, realize the subdivision of reservoir water filling; Adopt tester once to go into the well and test full well individual layer zonal flow rate, pressure, temperature parameter; Reduced downhole tool quantity, for oil field development saves production cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model structural profile schematic diagram.
Fig. 2 is a twin-stage plug structure generalized section.
Among the figure: 1, top connection, 2, main body on the injection well downhole flow regulator, 3, inclined to one side hole, 4, last intake tunnel, 5, eccentric main body, 6, the upper water-out passage, 7, following intake tunnel, 8, return connector, 9, the backwash switch, 10, the backwash water import, 11, following waterflood path 11,12, packing rubber sleeve, 13, following exhalant canal, 14, main body under the injection well downhole flow regulator, 15, lower contact, 16, fishing rod, 17, supporting base, 18, cam, 19, last water inlet, 20, passage, 21, last water nozzle, 22, connector, 23, the upper water-out mouth, 24, following water inlet, 25, lower channel, 26, following water nozzle, 27, end cover, 28, delivery port, 29, inner central tube, 30, exterior central tube, 31, aperture, 32, the twin-stage blanking plug.
The specific embodiment
Referring to Fig. 1, Fig. 2, top connection (1), design have main body (2), top on the injection well downhole flow regulator of inclined to one side hole (3) to be provided with eccentric main body (5), return connector (8), design that intake tunnel (4), middle part be provided with down intake tunnel (7), lower end design aperture (31) to have that main body (14), lower contact connect under the backwash switch (9) of backwash water import (10), inner central tube (29), packing rubber sleeve (12), exterior central tube (30), the injection well downhole flow regulator from top to bottom, and main body on its injection well downhole flow regulator (2) goes up in the inclined to one side hole (3) of design installation twin-stage blanking plug (32) connection and constitutes.Form therebetween and go up intake tunnel (4), upper water-out passage (13), following intake tunnel (7).Twin-stage blanking plug (32) by fishing rod (16), design have last water inlet (19) supporting base (17), cam (18), go up water nozzle (21), the upper end has upper water-out mouth (23), cover (27) and connect from top to bottom and constitute at the end that connector (22), time water nozzle (26), the lower end that the lower end has down water inlet (24) has a delivery port (28).The utility model is equivalent to a cover packer and the two cover eccentric injection mandrels of conventional separate injection tubing string, the water nozzle of adjustable two the water filling layers of pulling, be not subjected to simultaneously card to realize the subdivision of reservoir water filling apart from restriction, can realize the individual layer stratified flow rate test, reduce downhole tool quantity, alleviated the advantage of labor strength.Top connection (1) is connected the upper end of main body on the injection well downhole flow regulator (2), eccentric main body () 5 is connected the lower end of main body on the injection well downhole flow regulator (2), return connector (8) is arranged on the lower end of eccentric main body (5), return connector (8) the lower end inner central tube (29) that is threaded, backwash switch (9) is enclosed within inner central tube (29) upper end, packing rubber sleeve (12) is installed on the exterior central tube (30), main body under the injection well downhole flow regulator (14) is connected inner central tube (29) lower end, and lower contact (15) is connected main body under the injection well downhole flow regulator (14) lower end.Eccentric main body (5) top is provided with the junction that intake tunnel (4), middle part be provided with down intake tunnel (7), bottom and return connector (8) top and has aperture (31), be provided with upper water-out passage (6) between the inclined to one side hole (3) between last intake tunnel (4) and the following intake tunnel (7) and the outer wall of eccentric main body (5), be provided with down waterflood path (11) between inner central tube (29) and the exterior central tube (30), the upper side of main body under the injection well downhole flow regulator (14) is provided with down exhalant canal (13).(32 are installed in the inclined to one side hole (3) the twin-stage blanking plug, fixedly connected with supporting base (17) upper end in the lower end of fishing head (16), cam (18) is arranged on above the left side of supporting base (17), last water inlet (19) is opened supporting base (17) lower end below cam (18), connector (22) upper end is threaded with the lower end of supporting base (17), last water nozzle (21) is arranged in the passage (20) of connector (22) and supporting base (17) inside, junction, connector (22) lower end has upper water-out mouth (23), the lower end has down water inlet (24), end cover (27) upper end is threaded in the lower end of connector (22), cover (27) lower end, the end has delivery port (28), and following water nozzle (26) is arranged on connector (22) and covers in the lower channel (25) of (27) inside, junction the end of with.The utility model is equivalent to a cover packer and the two cover eccentric injection mandrels of conventional separate injection tubing string, the water nozzle of adjustable two the water filling layers of pulling, be not subjected to simultaneously card to realize the subdivision of reservoir water filling apart from restriction, can realize the individual layer stratified flow rate test, reduce downhole tool quantity, alleviated the advantage of labor strength.
Claims (1)
1. eccentric center water-distributing packer, it is characterized in that: top connection, design have main body, top on the injection well downhole flow regulator in inclined to one side hole to be provided with eccentric main body, return connector, design that intake tunnel, middle part be provided with down intake tunnel, lower end design aperture and have that main body, lower contact connect under the backwash switch of backwash water import, inner central tube, packing rubber sleeve, exterior central tube, the injection well downhole flow regulator from top to bottom, installation twin-stage blanking plug connection and constituting in the inclined to one side hole of designing on the main body on its injection well downhole flow regulator.The twin-stage blanking plug by fishing rod, design have last water inlet supporting base, cam, go up water nozzle, the upper end has the upper water-out mouth, cover and connect from top to bottom and constitute at the end that connector, time water nozzle, the lower end that the lower end has down a water inlet has a delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200848069U CN201068779Y (en) | 2007-05-21 | 2007-05-21 | Eccentric center water-dispensing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200848069U CN201068779Y (en) | 2007-05-21 | 2007-05-21 | Eccentric center water-dispensing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068779Y true CN201068779Y (en) | 2008-06-04 |
Family
ID=39490159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200848069U Expired - Lifetime CN201068779Y (en) | 2007-05-21 | 2007-05-21 | Eccentric center water-dispensing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068779Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797430A (en) * | 2012-09-07 | 2012-11-28 | 马中原 | Plugging device for water distributor |
| CN102900410A (en) * | 2012-10-24 | 2013-01-30 | 中国石油化工股份有限公司 | Repeated seat seal type packing water regulator |
| CN103334727A (en) * | 2013-08-01 | 2013-10-02 | 中国石油化工股份有限公司 | Plug with adjustable two-stage lower layer |
| CN103352674A (en) * | 2013-08-01 | 2013-10-16 | 中国石油化工股份有限公司 | Upper-layer adjustable plugging device |
| CN103375151A (en) * | 2013-08-09 | 2013-10-30 | 中国石油化工股份有限公司 | Clutch drive type double-layer adjustable plug |
| CN103375152A (en) * | 2013-08-09 | 2013-10-30 | 中国石油化工股份有限公司 | Adjustable plug capable of simultaneously controlling one water nozzle to be opened and the other closed |
| CN106351627A (en) * | 2016-10-09 | 2017-01-25 | 中国石油化工股份有限公司 | Subdivision measurement adjustment water distributor |
| CN107178361A (en) * | 2017-06-28 | 2017-09-19 | 大庆纽斯达采油技术开发有限公司 | A kind of holographic tester of eccentric stratified injection well and method of testing |
| CN108150145A (en) * | 2016-12-06 | 2018-06-12 | 中国石油天然气股份有限公司 | Injection well downhole flow regulator |
-
2007
- 2007-05-21 CN CNU2007200848069U patent/CN201068779Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797430B (en) * | 2012-09-07 | 2014-10-29 | 马中原 | Plugging device for water distributor |
| CN102797430A (en) * | 2012-09-07 | 2012-11-28 | 马中原 | Plugging device for water distributor |
| CN102900410A (en) * | 2012-10-24 | 2013-01-30 | 中国石油化工股份有限公司 | Repeated seat seal type packing water regulator |
| CN102900410B (en) * | 2012-10-24 | 2015-01-07 | 中国石油化工股份有限公司 | Repeated seat seal type packing water regulator |
| CN103352674A (en) * | 2013-08-01 | 2013-10-16 | 中国石油化工股份有限公司 | Upper-layer adjustable plugging device |
| CN103334727A (en) * | 2013-08-01 | 2013-10-02 | 中国石油化工股份有限公司 | Plug with adjustable two-stage lower layer |
| CN103334727B (en) * | 2013-08-01 | 2015-12-23 | 中国石油化工股份有限公司 | Plug with adjustable two-stage lower layer |
| CN103375152A (en) * | 2013-08-09 | 2013-10-30 | 中国石油化工股份有限公司 | Adjustable plug capable of simultaneously controlling one water nozzle to be opened and the other closed |
| CN103375151A (en) * | 2013-08-09 | 2013-10-30 | 中国石油化工股份有限公司 | Clutch drive type double-layer adjustable plug |
| CN103375151B (en) * | 2013-08-09 | 2015-06-24 | 中国石油化工股份有限公司 | Clutch drive type double-layer adjustable plug |
| CN103375152B (en) * | 2013-08-09 | 2015-11-04 | 中国石油化工股份有限公司 | Two-layer water nozzle controls the adjustable blanking plug that opens a conjunction simultaneously |
| CN106351627A (en) * | 2016-10-09 | 2017-01-25 | 中国石油化工股份有限公司 | Subdivision measurement adjustment water distributor |
| CN106351627B (en) * | 2016-10-09 | 2021-03-16 | 中国石油化工股份有限公司 | Fine-dividing measuring-adjusting water distributor |
| CN108150145A (en) * | 2016-12-06 | 2018-06-12 | 中国石油天然气股份有限公司 | Injection well downhole flow regulator |
| CN107178361A (en) * | 2017-06-28 | 2017-09-19 | 大庆纽斯达采油技术开发有限公司 | A kind of holographic tester of eccentric stratified injection well and method of testing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201068779Y (en) | Eccentric center water-dispensing packer | |
| CN106988712B (en) | Single-pipe column multi-pipe type oilfield layered water injection device and water injection and backwashing method thereof | |
| CN2906054Y (en) | Anti-sand anti-backflow and anti-fouling multifunctional eccentric separated-zone water injection string | |
| CN104141477B (en) | Concentric three-tube separated layer water injection device and using method thereof | |
| CN1908366A (en) | Underground three layer diverter | |
| CN109707327A (en) | A kind of concentric double pipe dispensing Operating Pressure tubing string | |
| CN201090194Y (en) | Adjustable flux water distributor | |
| CN103615223A (en) | Concentric water distributor and slimhole ground adjustable layered injection string | |
| CN104165043B (en) | Two-tube constant current divides water controller | |
| CN202707018U (en) | Bridge type eccentric overflowing water distributor and blanking plug thereof | |
| CN203248137U (en) | Double-pipe constant-flow water distribution control device | |
| CN108386155B (en) | Double-eccentric integrated packer for water injection well of oil field | |
| CN2929158Y (en) | Wellhead device of concentric double tube injection water | |
| CN208252098U (en) | A kind of multilayer system separate mass and separate pressure water injection string | |
| CN201513154U (en) | Water distribution packer, setting core and water distribution core | |
| CN203097854U (en) | Water injection shunt and water injection shunt pipe column | |
| CN201771467U (en) | Under-balance well completion tool | |
| CN204024615U (en) | Concentric three pipe layered water fillers | |
| CN204960912U (en) | Annular space feed liquor formula coiled tubing stride at a distance from fracturing device | |
| CN204627569U (en) | A kind of anti-returning tells bridge type eccentric injection mandrel | |
| CN206874260U (en) | Single tube post multitube separated-zone water infection oil field device | |
| CN201037417Y (en) | Bridge type delamination measuring and sealing structure | |
| CN201137484Y (en) | Anti-pollution eccentric water distributing apparatus | |
| CN203626772U (en) | Concentric water distributor and adjustable separate layer water injection string for slim-hole ground | |
| CN202125272U (en) | Small-clamping-distance packer for fine water distribution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080604 |
|
| CX01 | Expiry of patent term |