CN102536181A - Adjustable eccentric injection allocation device for polymer injection well - Google Patents
Adjustable eccentric injection allocation device for polymer injection well Download PDFInfo
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- CN102536181A CN102536181A CN201210030076XA CN201210030076A CN102536181A CN 102536181 A CN102536181 A CN 102536181A CN 201210030076X A CN201210030076X A CN 201210030076XA CN 201210030076 A CN201210030076 A CN 201210030076A CN 102536181 A CN102536181 A CN 102536181A
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Abstract
The invention discloses an adjustable eccentric injection allocation device for a polymer injection well, which relates to an eccentric injection allocation device, belongs to the field of petroleum exploitation and aims to solve the problems of complicated salvaging, high workload and incapability of continuously adjusting the injection rate of polymer existing in the conventional eccentric injection allocation device. The device comprises an upper joint, an upper connecting sleeve, a strengthening body, a working barrel main body, a lower connecting sleeve, a lower joint, a blanking plug, a guiding body, a straight rod and a throttling body, wherein the upper end of the upper connecting sleeve is connected with the upper joint; the lower end of the lower connecting sleeve is connected with the lower joint; the working barrel main body is connected between the upper connecting sleeve and the lower connecting sleeve; the throttling body is a rotary body formed by rotating a plurality of identical bus winding lines; the upper end of the straight rod is connected with the lower end of a rotating shaft of the blanking plug; the outer side face of the lower end of the straight rod and the outer side face of the upper end of the throttling body are smoothly transited to each other and are prepared into a whole; and the throttling body can move up and down between a liquid inlet and a liquid outlet by the rotation of the rotating shaft. The device is used for exploiting underground petroleum.
Description
Technical field
The present invention relates to a kind of eccentric injection allocation device, belong to field of petroleum exploitation.
Background technology
Along with oil field development gets into the middle and later periods, displacement of reservoir oil by filling water originally will progressively be replaced by the polymer injection displacement of reservoir oil.The existing eccentric injection mandrel that is used for displacement of reservoir oil by filling water; Be difficult to satisfy the needs of polymer injection (polyacrylamide) displacement of reservoir oil; If be used for the injection of polymer displacement of reservoir oil, when polymer was flowed through injection well downhole flow regulator, viscosity will reduce greatly; Be difficult to reach the characteristic of utilizing the polymer thickness and come the purpose of the displacement of reservoir oil, seriously restricting the further raising of oil recovery.Simultaneously, the eccentric injection allocation device of existing injection well also exists problems such as pulling complicacy, workload is big, flow can not be regulated continuously.
Summary of the invention
The objective of the invention is to have the problem that pulling is complicated, workload is big and the polymer injection rate can not be regulated continuously, and then provide a kind of injection well with adjustable eccentric injection allocation device for solving existing eccentric injection allocation device.
The present invention addresses the above problem the technical scheme of taking to be: injection well of the present invention comprises top connection, upper joint sleeve, centralizer body, seating nipple main body, lower joint sleeve, lower contact, blanking plug and guide way with adjustable eccentric injection allocation device; The upper end of upper joint sleeve is connected with top connection, and the lower end of lower joint sleeve is connected with lower contact, is connected with the seating nipple main body between upper joint sleeve and the lower joint sleeve; Be provided with centralizer body in the upper joint sleeve; Centralizer body is inserted in the upper joint sleeve, and the lower end of centralizer body and seating nipple main body removably connect, and guide way is arranged in the lower joint sleeve on lower contact top; The top of guide way is provided with inlet; Blanking plug comprises blanking plug body, axis of rotation and pin wheel, and a side of seating nipple main body is processed with eccentric channel, is processed with liquid outlet on the outer wall of the seating nipple main body at eccentric channel middle part; The blanking plug body is connected in the eccentric channel between upper joint sleeve and the lower joint sleeve through pin wheel; The middle part of blanking plug body vertically is provided with axis of rotation, and the upper end of axis of rotation is connected with the survey regulating mechanism, and it also comprises straight-bar and throttling bodies; Described throttling bodies is to rotate the revolving body that forms around axis by a plurality of identical buses; The upper end of straight-bar is connected with the lower end of the axis of rotation of blanking plug, seamlessly transits between the lateral surface of the lateral surface of the lower end of straight-bar and the upper end of throttling bodies and the two processes one, and throttling bodies can move up and down through being rotated between inlet and the liquid outlet of axis of rotation.
The invention has the beneficial effects as follows: the present invention changes the link of the bottom of the blanking plug main body of original eccentric injection allocation device into throttling bodies; Through the survey regulating mechanism rotating shaft of blanking plug is rotated and drive moving up and down of throttling bodies; And then the injection rate that reaches polymer is regulated continuously and the purpose of control pressure reduction; Simple to operation, workload is little; It is too big that the present invention simultaneously can avoid polymer viscosity to reduce, and only needs a pulling to use for a long time; The present invention can reduce the injection rate of high permeability zone section under the prerequisite of less viscosity loss, operation is simple; During flow allocating of the present invention, throttling bodies need be do not changed, the continuous adjusting of polymer injection rate can be directly realized through the up-down of control throttling bodies.
Description of drawings
Fig. 1 is overall structure master's sectional view of the present invention.
The specific embodiment
The specific embodiment one: combine Fig. 1 that this embodiment is described; The injection well of this embodiment comprises top connection 1, upper joint sleeve 2, centralizer body 3, seating nipple main body 4, lower joint sleeve 5, lower contact 6, blanking plug 11 and guide way 12 with adjustable eccentric injection allocation device; The upper end of upper joint sleeve 2 is connected with top connection 1, and the lower end of lower joint sleeve 5 is connected with lower contact 6, is connected with seating nipple main body 4 between upper joint sleeve 2 and the lower joint sleeve 5; Be provided with centralizer body 3 in the upper joint sleeve 2; Centralizer body 3 is inserted in the upper joint sleeve 2, and the lower end of centralizer body 3 and seating nipple main body 4 removably connect, and guide way 12 is arranged in the lower joint sleeve 5 on lower contact 6 tops; The top of guide way 12 is provided with inlet 7; Blanking plug 11 comprises blanking plug body 11-1, axis of rotation 11-2 and pin wheel 11-3, and a side of seating nipple main body 4 is processed with eccentric channel 4-1, is processed with liquid outlet 9 on the outer wall of the seating nipple main body 4 at eccentric channel 4-1 middle part; Blanking plug body 11-1 is connected in the eccentric channel 4-1 between upper joint sleeve 2 and the lower joint sleeve 5 through pin wheel 11-3; The middle part of blanking plug body 11-1 vertically is provided with axis of rotation 11-2, and the upper end of axis of rotation 11-2 is connected with the survey regulating mechanism, and it also comprises straight-bar 8 and throttling bodies 10; Described throttling bodies 10 is to rotate the revolving body that forms around axis by a plurality of identical buses; The upper end of straight-bar 8 is connected with the lower end of the axis of rotation 11-2 of blanking plug 11, seamlessly transits between the lateral surface of the upper end of the lateral surface of the lower end of straight-bar 8 and throttling bodies 10 and the two processes one, and throttling bodies 10 can move up and down through being rotated between inlet 7 and the liquid outlet 9 of axis of rotation 11-2.
The specific embodiment two: combine Fig. 1 that this embodiment is described; The upper center of the straight-bar 8 of this embodiment has the rectangular blind hole 8-1 of internal thread along axially being processed with of straight-bar 8; The lower end of the axis of rotation 11-2 of blanking plug 11 is processed with external screw thread, and the lower end of axis of rotation 11-2 is stretched in the rectangular blind hole 8-1 and with straight-bar 8 and is rotationally connected.So be provided with, meet design requirement and actual needs.Other is identical with the specific embodiment one.
The specific embodiment three: combine Fig. 1 that this embodiment is described, the described throttling bodies 10 of this embodiment is the fusiformis bar.So be provided with, the adjusting of polymer injection rate is more effective, meets design requirement and actual needs.Other is identical with the specific embodiment one.
The course of work
During work, will survey regulating mechanism and get into, and be connected with axis of rotation on the blanking plug from top connection; The action of surveying regulating mechanism is rotated axis of rotation, and polymer flow to inlet from the main channel of top connection in the seating nipple main body, flows out from liquid outlet through throttling bodies; When axis of rotation turned clockwise, the throttling bodies that is connected on the axis of rotation moved up, and the injection rate of the polymer between inlet and the liquid outlet increases; Pressure reduction reduces; When axis of rotation was rotated counterclockwise, the throttling bodies that is connected on the axis of rotation moved down, and the injection rate of the polymer between inlet and the liquid outlet reduces; Pressure reduction increases, and has realized that the up-down of control throttling bodies reaches the purpose of the continuous adjusting of polymer injection rate.
Claims (3)
1. an injection well is with adjustable eccentric injection allocation device; It comprises top connection (1), upper joint sleeve (2), centralizer body (3), seating nipple main body (4), lower joint sleeve (5), lower contact (6), blanking plug (11) and guide way (12); The upper end of upper joint sleeve (2) is connected with top connection (1); The lower end of lower joint sleeve (5) is connected with lower contact (6); Be connected with seating nipple main body (4) between upper joint sleeve (2) and the lower joint sleeve (5), be provided with centralizer body (3) in the upper joint sleeve (2), centralizer body (3) is inserted in the upper joint sleeve (2); The lower end of centralizer body (3) and seating nipple main body (4) removably connect; Guide way (12) is arranged in the lower joint sleeve (5) on lower contact (6) top, and the top of guide way (12) is provided with inlet (7), and blanking plug (11) comprises blanking plug body (11-1), axis of rotation (11-2) and pin wheel (11-3); One side of seating nipple main body (4) is processed with eccentric channel (4-1); Be processed with liquid outlet (9) on the outer wall of the seating nipple main body (4) at the middle part of eccentric channel (4-1), blanking plug body (11-1) is connected in the eccentric channel (4-1) between upper joint sleeve (2) and the lower joint sleeve (5) through pin wheel (11-3), and the middle part of blanking plug body (11-1) vertically is provided with axis of rotation (11-2); The upper end of axis of rotation (11-2) is connected with the survey regulating mechanism; It is characterized in that: it also comprises straight-bar (8) and throttling bodies (10), and described throttling bodies (10) is to rotate the revolving body that forms by a plurality of identical buses around axis, and the upper end of straight-bar (8) is connected with the lower end of the axis of rotation (11-2) of blanking plug (11); Seamlessly transit between the lateral surface of the upper end of the lateral surface of the lower end of straight-bar (8) and throttling bodies (10) and the two processes one, throttling bodies (10) can move up and down through being rotated between inlet (7) and the liquid outlet (9) of axis of rotation (11-2).
2. injection well according to claim 1 is with adjustable eccentric injection allocation device; It is characterized in that: the upper center of straight-bar (8) has the rectangular blind hole (8-1) of internal thread along axially being processed with of straight-bar (8); The lower end of the axis of rotation (11-2) of blanking plug (11) is processed with external screw thread, and the lower end of axis of rotation (11-2) is stretched in the rectangular blind hole (8-1) and with straight-bar (8) and is rotationally connected.
3. injection well according to claim 1 is characterized in that with adjustable eccentric injection allocation device: described throttling bodies (10) is the fusiformis bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030076XA CN102536181A (en) | 2012-02-10 | 2012-02-10 | Adjustable eccentric injection allocation device for polymer injection well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030076XA CN102536181A (en) | 2012-02-10 | 2012-02-10 | Adjustable eccentric injection allocation device for polymer injection well |
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| CN102536181A true CN102536181A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210030076XA Pending CN102536181A (en) | 2012-02-10 | 2012-02-10 | Adjustable eccentric injection allocation device for polymer injection well |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747995A (en) * | 2012-07-18 | 2012-10-24 | 哈尔滨工业大学 | Separation type electric-control continuously-adjustable filling device of polymer injection well |
| CN103089222A (en) * | 2013-02-27 | 2013-05-08 | 马中原 | Polymer injection device free from dropping and fishing |
| CN104179484A (en) * | 2014-08-18 | 2014-12-03 | 哈尔滨工业大学 | Internal magnetic flowmeter type intelligent recoverable injection allocation device |
| CN105257268A (en) * | 2015-10-10 | 2016-01-20 | 中国石油天然气股份有限公司 | Bridge type concentric polymer distributor for separate-layer polymer injection well |
| CN105484714A (en) * | 2015-10-13 | 2016-04-13 | 中国石油天然气股份有限公司 | Concentric polymer allocator |
| CN105507863A (en) * | 2015-12-07 | 2016-04-20 | 田山 | Automatic regulation and control system for polymer injection well |
| CN104314534B (en) * | 2014-08-18 | 2017-04-26 | 哈尔滨工业大学 | Differential pressure flow meter-type smart adjustable throwing and fishing injection dispenser |
| CN108286424A (en) * | 2018-01-17 | 2018-07-17 | 大庆市天德忠石油科技有限公司 | Automatically controlled distributor |
| CN110107267A (en) * | 2019-05-29 | 2019-08-09 | 大庆华油石油科技开发有限公司 | A kind of distributor being conveniently replaceable water nozzle in blanking plug |
| CN111119811A (en) * | 2019-12-25 | 2020-05-08 | 中国石油天然气股份有限公司 | Dual-medium dispenser, dispensing string, and method for operating dispensing string |
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| EP0931970A1 (en) * | 1998-01-27 | 1999-07-28 | MANIBS Spezialarmaturen GmbH & Co. KG | Tapping and cut-off apparatus for pipes under pressure |
| CN2861479Y (en) * | 2005-11-24 | 2007-01-24 | 大庆油田有限责任公司 | Polymer eccentric injection allocator with shuttle bar |
| CN102003165A (en) * | 2010-10-13 | 2011-04-06 | 中国石油化工股份有限公司 | Integrated hollow confecting-polymer device |
| CN102305056A (en) * | 2011-09-22 | 2012-01-04 | 哈尔滨工业大学 | Eccentric electric injection allocation device for polymer injection well |
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2012
- 2012-02-10 CN CN201210030076XA patent/CN102536181A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0931970A1 (en) * | 1998-01-27 | 1999-07-28 | MANIBS Spezialarmaturen GmbH & Co. KG | Tapping and cut-off apparatus for pipes under pressure |
| CN2861479Y (en) * | 2005-11-24 | 2007-01-24 | 大庆油田有限责任公司 | Polymer eccentric injection allocator with shuttle bar |
| CN102003165A (en) * | 2010-10-13 | 2011-04-06 | 中国石油化工股份有限公司 | Integrated hollow confecting-polymer device |
| CN102305056A (en) * | 2011-09-22 | 2012-01-04 | 哈尔滨工业大学 | Eccentric electric injection allocation device for polymer injection well |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747995A (en) * | 2012-07-18 | 2012-10-24 | 哈尔滨工业大学 | Separation type electric-control continuously-adjustable filling device of polymer injection well |
| CN103089222A (en) * | 2013-02-27 | 2013-05-08 | 马中原 | Polymer injection device free from dropping and fishing |
| CN103089222B (en) * | 2013-02-27 | 2015-04-22 | 马中原 | Polymer injection device free from dropping and fishing |
| CN104179484A (en) * | 2014-08-18 | 2014-12-03 | 哈尔滨工业大学 | Internal magnetic flowmeter type intelligent recoverable injection allocation device |
| CN104179484B (en) * | 2014-08-18 | 2016-10-05 | 哈尔滨工业大学 | In a kind of, magnetic flowmeter formula intelligence can pulling distributor |
| CN104314534B (en) * | 2014-08-18 | 2017-04-26 | 哈尔滨工业大学 | Differential pressure flow meter-type smart adjustable throwing and fishing injection dispenser |
| CN105257268B (en) * | 2015-10-10 | 2018-03-09 | 中国石油天然气股份有限公司 | A kind of layered polymer injection well matches somebody with somebody poly- device with one heart with bridge-type |
| CN105257268A (en) * | 2015-10-10 | 2016-01-20 | 中国石油天然气股份有限公司 | Bridge type concentric polymer distributor for separate-layer polymer injection well |
| CN105484714A (en) * | 2015-10-13 | 2016-04-13 | 中国石油天然气股份有限公司 | Concentric polymer allocator |
| CN105507863A (en) * | 2015-12-07 | 2016-04-20 | 田山 | Automatic regulation and control system for polymer injection well |
| CN105507863B (en) * | 2015-12-07 | 2018-01-12 | 田山 | Automatic regulating system for polymer injection well |
| CN108286424A (en) * | 2018-01-17 | 2018-07-17 | 大庆市天德忠石油科技有限公司 | Automatically controlled distributor |
| CN110107267A (en) * | 2019-05-29 | 2019-08-09 | 大庆华油石油科技开发有限公司 | A kind of distributor being conveniently replaceable water nozzle in blanking plug |
| CN111119811A (en) * | 2019-12-25 | 2020-05-08 | 中国石油天然气股份有限公司 | Dual-medium dispenser, dispensing string, and method for operating dispensing string |
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Application publication date: 20120704 |