CN201025017Y - Drive convergence injection well eccentric blocker - Google Patents
Drive convergence injection well eccentric blocker Download PDFInfo
- Publication number
- CN201025017Y CN201025017Y CNU2007201411798U CN200720141179U CN201025017Y CN 201025017 Y CN201025017 Y CN 201025017Y CN U2007201411798 U CNU2007201411798 U CN U2007201411798U CN 200720141179 U CN200720141179 U CN 200720141179U CN 201025017 Y CN201025017 Y CN 201025017Y
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- CN
- China
- Prior art keywords
- main body
- cam
- head
- blanking plug
- eccentric
- 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 - Fee Related
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Abstract
The utility model relates to a collecting drive ejection eccentric blanking plug, which comprises a fishing head(1), and the fishing head(1) is fixedly positioned on the main body(7) through the press cap(2). The cavity between the finishing head(1) and the main body(7) is provided with a spring(3). The main body(7) under the finishing head(1) is provided with a pin(4) provided with a cam(5). The lower end face of the finishing head(1) is contacted with the cam(5). The main body(7) under the cam(5) is provided with a seal ring along the circumference direction in a spacing installation manner. The lower end of the main body(7) is connected with bamboo joint shape cone body(8). The collecting drive ejection eccentric blanking plug can realize the injection for over three levels and also can realize the test of multi layer injection section. Synchronously, the utility model can adopt the routine eccentric well pulling and running testing technique to realize the distribution of injection quantity and the tested sealing of the pipe pole, thereby reaching the aim that: the utility model can be separated, and can have test and instant distribution to realize tested sealing, and the tool can be repeatedly used.
Description
Technical field:
The utility model relates to the instrument of the eccentric injection allocation device of poly-drive injection well Flow-rate adjustment in the oil recovery field, the eccentric blanking plug of especially a kind of poly-drive injection well.
Background technology:
The oil field enters the high water-cut development later stage, for further improving recovery ratio, enters the polymer displacement of reservoir oil mining phase.Though at present poly-drive injection well multi-zone flow regulating adopts water injection through tubing and casing and two-tube dispensing to realize two layers of dispensing; and it is convenient directly perceived that flow is adjusted on ground, test also unaffectedly, still has been subjected to the restriction of separate injection interval more than three layers; even the casing protection function is arranged, injection profile can't be tested at present.In addition, inject though annular relief groove dispensing realizes the multi-section multi-layer layering, injection profile can't be tested at present, and changes relatively difficulty of mouthpiece pulling.Divide more than 1/3rd of layered scheme and divide poly-drive injection well ratio more than three layers to account for oil reservoir at present, therefore conventional at present dispensing means can't adapt to the oil field development needs.
The utility model content:
In order to overcome the deficiency in the background technology, the utility model provides a kind of poly-drive injection well eccentric blanking plug, should can realize dispensing more than three layers by the eccentric blanking plug of poly-drive injection well, can realize the test of multilayer injection profile again, can adopt again simultaneously conventional eccentric well dropping-fishing test technology realize injection rate allotment, tubing string test envelope, reach separate, record, allotment in time, realize testing the purpose that envelope and instrument can reuse.
The technical solution of the utility model is: the eccentric blanking plug of this poly-drive injection well comprises and drags for head, dragging for head is fixed on the main body by pressure cap, drag in head and the intersubjective cavity spring is arranged, drag on the main body of below and cam is arranged by dowel fixes, dragging for the lower surface of head touches mutually with cam, along the circumferential direction be equipped with sealing ring at interval on the main body of cam below, the main body lower end is connected with the cone of " ring " shape.
The diameter of above-mentioned cone is that φ 13mm～φ 19mm and length are 30mm～40mm.
The beneficial effect that the utlity model has is: one, overcome the shortcoming that original dispensing technology injection profile can't be tested, central test channel is provided, conventional dropping-fishing test technology can meet the demands; Two, realized the multistage pulling and the depositing of eccentric blanking plug, the flow-control means are abundanter; Three, the viscosity loss of injection solution is little, can realize anti-flushing well.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-drags for head among the figure, 2-pressure cap, 3-spring, 4-pin, 5-cam, 6-main body, 7-sealing ring, 8-cone.
The specific embodiment:
Will the utility model is described in further detail below in conjunction with accompanying drawing: the eccentric blanking plug of this poly-drive injection well comprises and drags for 1, dragging for 1 is fixed on the main body 7 by pressure cap 2, drag for 1 and the cavity of 7 of main bodys in spring 3 is arranged, drag on the main body of 1 below 7 and be fixed with cam 5 by pin 4, dragging for a lower surface of 1 touches mutually with cam 5, spring 3 is used to drag for head with masterpiece, control cam 5, realize locking and the releasing of blanking plug at eccentric injection allocation device, along the circumferential direction be equipped with sealing ring 6 on the main body 7 of cam 5 belows at interval, realizing injecting liquid flows out from blanking plug top, main body 7 lower ends are connected with the cone 8 of " ring " shape, and cone 8 control is injected the flow velocity of liquid and flow and played the effect that prevents the disturbance of blanking plug bottom; The diameter of cone (8) is that φ 13mm～φ 19mm and length are 30mm～40mm.
At first design during use according to dispensing, according to the dispensing number of plies and each laminar flow amount requirement, corresponding blanking plug is dropped in the inclined to one side hole of eccentric injection allocation device on ground with throw in catcher, blanking plug cam 5 is stuck under the effect of spring force in the inclined to one side hole of eccentric injection allocation device on the step, and insert in the fixedly eyelet of eccentric injection allocation device support the blanking plug lower end.The eccentric injection allocation device that will have blanking plug is according to the designing requirement G.I.H, after seat completion mouth has connected ground flow, open Ground Control gate injection of polymer solution in well, liquid upwards flows along blanking plug lower loop cone 8, through the control of ring coning tower tray amount, flow velocity, liquid enters the stratum along eccentric injection allocation device injection hole.Under the hierarchical control of packer, realize the layering injection.
When this instrument was gone into the well, the throw in catcher running speed should slow down, and when dropping into blanking plug, control speed well, in order to avoid set bad.After blanking plug set, cam 5 was stuck on the eccentric main body, and sealing ring 6 is realized blanking plug in eccentric body seal, and blanking plug cone 8 lower ends enter fixedly eyelet.When salvaging blanking plug, lowering velocity is wanted suitably, when throw in catcher with after blanking plug docks, fishing head drags for blanking plug and drags on 1 and carry, cam 5 loses the support return, blanking plug realization release is pulled out.Repeat above-mentioned action, be lowered to the control that different blanking plugs can be realized downhole flow.
Again drop into behind the blanking plug that more renews in the eccentric injection allocation device of target zone, can realize the control of downhole flow.Repeat above-mentioned action successively, can realize the allotment of full well multilayer different flow.
Claims (2)
1. eccentric blanking plug of poly-drive injection well, comprise and drag for head (1), it is characterized in that: drag for head (1) and be fixed on the main body (7) by pressure cap (2), drag in the cavity between head (1) and main body (7) spring (3) is arranged, the main body (7) of dragging for head (1) below goes up and is fixed with cam (5) by pin (4), drag for the lower surface of head (1) and touch mutually with cam (5), along the circumferential direction be equipped with sealing ring (6) at interval on the main body (7) of cam (5) below, main body (7) lower end is connected with the cone (8) of " ring " shape.
2. the eccentric blanking plug of poly-drive injection well according to claim 1, it is characterized in that: the diameter of cone (8) is that ф 13mm～ф 19mm and length are 30mm～40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201411798U CN201025017Y (en) | 2007-03-29 | 2007-03-29 | Drive convergence injection well eccentric blocker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201411798U CN201025017Y (en) | 2007-03-29 | 2007-03-29 | Drive convergence injection well eccentric blocker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025017Y true CN201025017Y (en) | 2008-02-20 |
Family
ID=39098875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201411798U Expired - Fee Related CN201025017Y (en) | 2007-03-29 | 2007-03-29 | Drive convergence injection well eccentric blocker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025017Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314496A (en) * | 2014-08-18 | 2015-01-28 | 哈尔滨工业大学 | Retrievable packer special for polymer injection well |
| CN112302593A (en) * | 2019-08-01 | 2021-02-02 | 中国石油天然气股份有限公司 | Water is gathered and is driven and join in marriage notes ware and water and gather and drive integration intelligence and divide water system of spouting |
-
2007
- 2007-03-29 CN CNU2007201411798U patent/CN201025017Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314496A (en) * | 2014-08-18 | 2015-01-28 | 哈尔滨工业大学 | Retrievable packer special for polymer injection well |
| CN104314496B (en) * | 2014-08-18 | 2016-10-05 | 哈尔滨工业大学 | A kind of injection well special pulling blanking plug |
| CN112302593A (en) * | 2019-08-01 | 2021-02-02 | 中国石油天然气股份有限公司 | Water is gathered and is driven and join in marriage notes ware and water and gather and drive integration intelligence and divide water system of spouting |
| CN112302593B (en) * | 2019-08-01 | 2022-11-01 | 中国石油天然气股份有限公司 | Water polymer flooding injection allocation device and water polymer flooding integrated intelligent separate injection system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20100329 |