CN109869124A - Regulable constant current stopper - Google Patents
Regulable constant current stopper Download PDFInfo
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- CN109869124A CN109869124A CN201910317055.8A CN201910317055A CN109869124A CN 109869124 A CN109869124 A CN 109869124A CN 201910317055 A CN201910317055 A CN 201910317055A CN 109869124 A CN109869124 A CN 109869124A
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- pressure
- cam
- cap
- plunger
- adjusting rod
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Abstract
The present invention relates to technical field of oil production engineering, belong to the development of blanking plug in water injection well layering water filling injection well downhole flow regulator.The present invention is solved when water injection pressure fluctuation, the pressure-dependent problem of water injection rate；And when geology injection allocation project setting, it is not necessarily to fishing plugging device, injection rate can be adjusted by existing efficient survey conditioning technology, solve the problems, such as that test job amount is big.It is mainly made of fishing rod (1), pressure cap (2), pressure spring (3), cam holder (4), cam (5), small axis (6), O-shaped packing (7), plunger barrel (8), plunger spring (9), adjusting rod (10), piston body (11), ceramic stress piece (12), piston cap (13), screen blinding (14).It changes the effective area of passage of taper water nozzle by adjusting rod, realizes that flow underground is adjustable, and achieve the purpose that constant current according to area of passage and pressure difference are constant, to reduce test job amount.
Description
Technical field
The present invention relates to technical field of oil production engineering, belongs to and fill the water injection well downhole flow regulator adjustable constant-flow for a kind of water injection well layering
Blanking plug.
Background technique
Original seperated layer water injection injection well downhole flow regulator application is constant flow blanking plug or adjustable blanking plug, and there are following main problems, first
First, different size constant flow blanking plug corresponds to the water nozzle of different pore size, causes constant flow blanking plug specification many kinds of, apply at the scene
In, when injection allocation amount in stratum changes, new constant flow blanking plug need to be re-replaced, test job amount is increased considerably；Secondly, adjustable
Blanking plug cannot keep that water injection rate is constant when water injection pressure fluctuates, and lead to not realize constant stratum with fluence.The present invention
Not only stratum can be adjusted in underground and realize that flow is adjustable with fluence, but also water injection rate can be kept constant when water injection pressure fluctuates.
Summary of the invention
The present invention designs one kind and changes the effective area of passage of taper water nozzle by adjusting rod, thus corresponding plurality of specifications
Water nozzle realizes that flow is adjustable, and then can adjust stratum with fluence in underground and can keep water injection rate when water injection pressure fluctuates
Constant Regulable constant current stopper.
The present invention is achieved through the following technical solutions.The present invention is by fishing rod, pressure cap, pressure spring, cam holder, convex
Wheel, small axis, O-shaped packing, plunger barrel, plunger spring, adjusting rod, piston body, ceramic stress piece, piston cap, screen blinding composition,
Middle pressure cap is threadedly coupled with cam holder, and fishing rod passes through pressure cap and the grafting of adjusting rod groove, and compression spring sleeve is on fishing rod and by pressing
Cap is fixed, and by small axis connection, cam is fixed on cam holder by small axis for cam and fishing rod, and plunger barrel and cam holder screw thread connect
It connects, O-shaped packing seals wherein, and plunger spring is located in plunger barrel, and adjusting rod is threadedly coupled with piston body, ceramics
Stress piece is placed in piston cap, and piston cap is threadedly coupled with piston body, and screen blinding is threadedly coupled with plunger barrel.
Aperture between its adjusting rod rotation control and ceramic stress piece, the material of ceramic stress piece are ceramic material.
The invention has the following advantages over the prior art:
It keeps water injection rate constant when can realize water injection pressure fluctuation, and when geology injection allocation project setting, more without pulling
Injection allocation specification can be adjusted by existing efficient survey conditioning technology, to reduce allotment and dropping-fishing test layer in the blanking plug renewed
Section improves to survey and adjusts efficiency, reduces test job amount.The material of ceramic stress piece is ceramic material, and anticorrosion antiwear can be improved,
Prolong the service life.
Detailed description of the invention: Fig. 1 is structural schematic diagram of the invention.
Specific embodiment: below in conjunction with attached drawing, the present invention is described further: the present invention is by fishing rod 1, pressure cap
2, pressure spring 3, cam holder 4, cam 5, small axis 6, O-shaped packing 7, plunger barrel 8, plunger spring 9, adjusting rod 10, piston body 11, pottery
Porcelain stress piece 12, piston cap 13, screen blinding 14 form, and wherein pressure cap 2 is threadedly coupled with cam holder 4, fishing rod 1 across pressure cap 2 and
10 groove grafting of adjusting rod, 3 sets of pressure spring are fixed on fishing rod 1 and by pressure cap 2, and cam 5 is connect with fishing rod 1 by small axis 6,
Cam 5 is fixed on cam holder 4 by small axis 6, and plunger barrel 8 is threadedly coupled with cam holder 4, and O-shaped packing 7 plays sealing wherein and makees
With plunger spring 9 is located in plunger barrel 8, and adjusting rod 10 is threadedly coupled with piston body 11, and ceramic stress piece 12 is placed on piston cap
In 13, piston cap 13 is threadedly coupled with piston body 11, and screen blinding 14 is threadedly coupled with plunger barrel 8.
Aperture between its rotation of adjusting rod 10 control and ceramic stress piece 12, the material of ceramic stress piece 12 are ceramics
Material.
When field application, well head pulley is installed first, Regulable constant current stopper is delivered to by destination layer position by throw in catcher
In eccentric injection mandrel, then the fishing rod 1 of Regulable constant current stopper is rotated by being connected with the efficient measurement and adjustment instrument of cable, from
And the gap of adjusting rod 10 and ceramic stress piece 12 is changed, water injection rate is adjusted with this to reach injection allocation requirement.
When injection pressure increases, piston body 11 moves forward, and water outlet becomes smaller, and build the pressure inside piston body 11 causes at this time
Pressure increases, and the pressure difference value between injection pressure and plunger body internal pressure is constant at this time, due to control valve water inlet
Captured area is constant, it may thus be appreciated that injection flow is constant；With should injection pressure reduce when, piston body 11 moves back, water outlet
Become larger, 11 internal pressure of piston body reduces at this time, and injection pressure and plunger body internal pressure difference are still constant, captured area
It is constant, therefore flow is constant, reaches constant current effect.
Claims (2)
1. Regulable constant current stopper, it is characterised in that: it is by fishing rod (1), pressure cap (2), pressure spring (3), cam holder (4), cam
(5), small axis (6), O-shaped packing (7), plunger barrel (8), plunger spring (9), adjusting rod (10), piston body (11), ceramic stress
Piece (12), piston cap (13), screen blinding (14) composition, wherein pressure cap (2) is threadedly coupled with cam holder (4), and fishing rod (1) passes through pressure
Cap (2) and adjusting rod (10) groove grafting, pressure spring (3) cover on fishing rod (1) and fixed by pressure cap (2), cam (5) and salvaging
Bar (1) is connected by small axis (6), and cam (5) is fixed on cam holder (4) by small axis (6), plunger barrel (8) and cam holder (4) spiral shell
Line connection, O-shaped packing (7) seals wherein, and it is inner that plunger spring (9) is located at plunger barrel (8), adjusting rod (10) and plunger
Main body (11) is threadedly coupled, and it is inner that ceramic stress piece (12) is placed on piston cap (13), piston cap (13) and piston body (11) screw thread
Connection, screen blinding (14) are threadedly coupled with plunger barrel (8).
2. Regulable constant current stopper according to claim 1, it is characterised in that: adjusting rod (10) rotation control and ceramics
Aperture between stress piece (12), the material of ceramic stress piece (12) are ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317055.8A CN109869124B (en) | 2019-04-19 | 2019-04-19 | Adjustable constant-current blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317055.8A CN109869124B (en) | 2019-04-19 | 2019-04-19 | Adjustable constant-current blanking plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109869124A true CN109869124A (en) | 2019-06-11 |
| CN109869124B CN109869124B (en) | 2021-06-15 |
Family
ID=66922881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910317055.8A Active CN109869124B (en) | 2019-04-19 | 2019-04-19 | Adjustable constant-current blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109869124B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360412A (en) * | 2020-12-03 | 2021-02-12 | 中国石油天然气股份有限公司 | Intelligent water distributor with flow regulating valve capable of being thrown and fished |
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| US20030221839A1 (en) * | 1998-08-21 | 2003-12-04 | Dewayne Turner | Double-pin radial flow valve |
| CN2713253Y (en) * | 2004-07-28 | 2005-07-27 | 王立平 | Constant flow water distributor |
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| WO2008050116A1 (en) * | 2006-10-24 | 2008-05-02 | Red Spider Technology Limited | Downhole apparatus and method |
| CN201292803Y (en) * | 2008-12-03 | 2009-08-19 | 贵州航天凯山石油仪器有限公司 | Cam screw mounting structure of adjustable blanking plug |
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| CN102146786A (en) * | 2011-02-15 | 2011-08-10 | 董力维 | Polymer flooding and water flooding double-function external adjusting stopper |
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| CN107940057A (en) * | 2017-12-13 | 2018-04-20 | 宁波勋辉电器有限公司 | A kind of plunger-type pump of high pressure cleaner pressure regulator valve |
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2019
- 2019-04-19 CN CN201910317055.8A patent/CN109869124B/en active Active
Patent Citations (10)
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|---|---|---|---|---|
| US20030221839A1 (en) * | 1998-08-21 | 2003-12-04 | Dewayne Turner | Double-pin radial flow valve |
| CN2713253Y (en) * | 2004-07-28 | 2005-07-27 | 王立平 | Constant flow water distributor |
| CN2856397Y (en) * | 2005-12-20 | 2007-01-10 | 大庆油田有限责任公司 | Constant flow regulatable obturator |
| WO2008050116A1 (en) * | 2006-10-24 | 2008-05-02 | Red Spider Technology Limited | Downhole apparatus and method |
| CN201292803Y (en) * | 2008-12-03 | 2009-08-19 | 贵州航天凯山石油仪器有限公司 | Cam screw mounting structure of adjustable blanking plug |
| CN201620813U (en) * | 2010-01-19 | 2010-11-03 | 毛元红 | Steady flow adjustable blanking plug |
| CN102146786A (en) * | 2011-02-15 | 2011-08-10 | 董力维 | Polymer flooding and water flooding double-function external adjusting stopper |
| CN202000982U (en) * | 2011-03-11 | 2011-10-05 | 董力维 | Constant-flow and adjustable-flow double-function plug |
| CN206396850U (en) * | 2017-01-03 | 2017-08-11 | 厦门永霖卫浴有限公司 | Multipurpose water intaking valve |
| CN107940057A (en) * | 2017-12-13 | 2018-04-20 | 宁波勋辉电器有限公司 | A kind of plunger-type pump of high pressure cleaner pressure regulator valve |
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|---|
| 宋艳华: "井下恒流配水技术研究与应用", 《中国石油和化工标准与质量》 * |
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| 李海成 等: "井筒管流、喷嘴节流及地层渗流耦合的聚驱分注井分层流量调配方法-以大庆油田为例", 《石油与天然气地质》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360412A (en) * | 2020-12-03 | 2021-02-12 | 中国石油天然气股份有限公司 | Intelligent water distributor with flow regulating valve capable of being thrown and fished |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109869124B (en) | 2021-06-15 |
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