CN2653126Y - Automatic regulater for injection quantity for oil field water injection well - Google Patents

Automatic regulater for injection quantity for oil field water injection well Download PDF

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Publication number
CN2653126Y
CN2653126Y CN 03252862 CN03252862U CN2653126Y CN 2653126 Y CN2653126 Y CN 2653126Y CN 03252862 CN03252862 CN 03252862 CN 03252862 U CN03252862 U CN 03252862U CN 2653126 Y CN2653126 Y CN 2653126Y
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CN
China
Prior art keywords
electrical motor
motor
injection well
water injection
model
Prior art date
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Expired - Lifetime
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CN 03252862
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Chinese (zh)
Inventor
张鉴明
徐仲英
庞云伟
林涛
谢泰平
杨洪亮
曾鸿逊
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Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
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Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
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Priority to CN 03252862 priority Critical patent/CN2653126Y/en
Application granted granted Critical
Publication of CN2653126Y publication Critical patent/CN2653126Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an automatic injection volume control apparatus of water injection well in the oil field. A centralizer and a salvage controller are connected with the two ends of a column shaped cover; an electrical motor, a flowmeter, SCM and an electrical motor driving circuit are installed in the column shaped cover, and a flexible power output axle is also installed on the cover. The flowmeter outputs signal to the signal input terminal of the SCM, the SCM outputs signal to the electrical motor driving circuit, the electrical motor driving circuit outputs signal to the electrical motor and controls the running. The electrical motor is connected with the output axle of the electrical motor and drives the movement. The utility model has the advantage to automatically adjust the injection volume without salvaging the blanking plug without changing the current pipe column structure of the water injection well; furthermore, the apparatus is easy to use with low running cost, and tremendously reduces the work load, increases the work efficiency and saves testing cost.

Description

Water injection well in oil fields injection allocation amount self-checking device
Technical field:
The utility model relates to a kind of self-checking device that is used for water injection well in oil fields injection allocation amount, belongs to water injection well in oil fields injection allocation amount and regulates the control technology field automatically.
Background technology:
Having recovered the oil the middle and later periods in the oil field, adopts the displacement of reservoir oil by filling water technology in a large number.Because a bite well needs the while to a plurality of oil-bearing stratum floodings, in order to reach optimum efficiency, must carry out quantitative injection to different oil reservoirs.In the prior art at present, the oil field mainly is the method that adopts eccentric water filling, this method with water under high pressure from top injection, during through the one-level injection well downhole flow regulator, eccentric orfice from injection well downhole flow regulator injects oil reservoir to part water behind the injection well downhole flow regulator blanking plug by putting in advance, and another part continues to inject other oil reservoir downwards behind all the other injection well downhole flow regulators and blanking plug.Because the aperture of the water nozzle in the prior art on the blanking plug all be a definite value, thus when the injection allocation amount of certain layer of needs change, must salvage the blanking plug of this layer earlier, change the water nozzle in suitable aperture on it after, again blanking plug is rendered to original position.The disadvantage of this method is that workload is big.Particularly when regulating number of plies increase, the number of times of salvaging and throw in blanking plug also is multiplied, and has therefore increased operator's labour intensity greatly and has reduced operating efficiency.For addressing this problem, there is the people once to propose the technical scheme of " the automatically controlled seperated layer water injection of water injection well in oil fields, water transfer method ", though this method can solve some problems, need transform the existing water injection well structure in oil field.Need spend hundreds thousand of RMB owing to transform a bite well, and there are thousands of mouthfuls of water injection wells a common oil recovery factory to units up to a million, if thereby popularize this technology in an all-round way, required improvement expenses will be an astronomical figure.Therefore, the control method of existing water injection well in oil fields injection allocation amount still is not ideal enough.
Summary of the invention:
The purpose of this utility model is: providing a kind of can keep under the constant situation of the existing tubular column structure of water injection well in oil fields, realize that not pulling blanking plug can regulate each layer injection allocation water injection well in oil fields injection allocation amount, easy to use, both economical amount self-checking device, reduce labour intensity to reach, increase work efficiency, save the purpose of testing cost, thereby overcome the deficiencies in the prior art.
The utility model is to constitute like this: it comprises centralizer (11) and pulling controller (12), centralizer (11) and pulling controller (12) are connected to the two ends of a cylindrical shell (9), motor (5) is housed in cylindrical shell (9), flow meter (6) and single-chip microcomputer (7) and motor-drive circuit (8), a movable power output shaft (10) also is installed on housing (9), flow meter (6) output signal is to the signal input part of single-chip microcomputer (7), single-chip microcomputer (7) output signal is to motor-drive circuit (8), motor-drive circuit (8) output signal is controlled its running to motor (5), and motor (5) is connected with power output shaft (10) and drives its rotation; Be provided with the inner polygon jack k that can be connected at the front end of power output shaft (10) with the power transmission shaft (4) on the blanking plug (1) in being installed in water injection well in oil fields eccentric injection mandrel (13).
Owing to adopted technique scheme, the utility model with single-chip microcomputer (7) and motor-drive circuit (8), motor (5), power output shaft (10), with the blanking plug (1) that is installed in the water injection well in oil fields eccentric injection mandrel (13) on power transmission shaft (4) and be installed in blanking plug (1) and go up the adjustable valve water nozzle and the flow meter (6) that drive its spool (3) by power transmission shaft (4) and form a closed-loop control system jointly, realize the automatic adjusting of multi-zone flow regulating amount by the size that changes the middle water nozzle valve port of blanking plug (1).The adjustable valve water nozzle of blanking plug (1) is made up of valve body (2) and movable spool (3).When using the utility model, configure the flow desired value of needed water distribution layer earlier by single-chip microcomputer (7), then the utility model is put in the eccentric injection mandrel (13) of water injection well in oil fields, make on the power transmission shaft (4) on the blanking plug (1) of its power output shaft (10) sleeve in being installed in eccentric injection mandrel (13) in advance, making it can drive power transmission shaft (4) rotates, when having water under high pressure to flow through the adjustable valve water nozzle of blanking plug (1) in the eccentric injection mandrel (13) of water injection well in oil fields, flow meter (6) detects the actual flow value, and detected flow value signal delivered to single-chip microcomputer (7), by single-chip microcomputer (7) flow desired value and flow rate test value are compared, rotate according to comparative result control motor (5), motor (5) rotates and drive power output shaft (10) and power transmission shaft (4) motion, thereby the water nozzle port size of blanking plug (1) is changed, and then cause actual flow to change; Flow meter (6) is tested the flow after changing again and is compared and regulate by single-chip microcomputer (7), stops to regulate after comparative result satisfies required precision, and like this, this water filling layer is surveyed to transfer and finished; And then will carry on the utility model, its power output shaft (10) is separated with power transmission shaft (4) on the blanking plug (1), again with it with after the blanking plug of last layer docks, with said method its injection allocation amount is regulated.The utility model is once gone into the well and can be regulated the water nozzle valve port size of the blanking plug of a plurality of water distribution layers.
The utility model is compared with prior art: at first, replace in the past mechanical pulling water transfer mode from the water transfer mode with electronic water transfer, and once go into the well and can regulate a plurality of water distribution layers.Solved that mechanical pulling water nozzle easily falls that card accident, downhole deployment water nozzle are very difficult, water transfer poor accuracy, problem such as need frequently go into the well, improved the accuracy and the water transfer efficient of water transfer.Secondly, use the utility model to carry out any transformation, saved improvement expenses greatly original water injection well.Therefore, the utility model prodigiosin is enough realizes under the constant situation of the existing tubular column structure of water injection well in oil fields that not pulling blanking plug can regulate the advantage of each layer injection allocation amount keeping, and also have easy to use, running cost is cheap, the advantage that reduces labour intensity greatly, increase work efficiency, save testing cost.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the logic diagram of the utility model closed-loop control;
Accompanying drawing 3 is single-chip microcomputer and motor-drive circuit schematic diagram that embodiment of the present utility model adopted, and E represents power supply among the figure;
Work schematic diagram when its power transmission shaft was connected with the power transmission shaft of blanking plug when accompanying drawing 4 was put into the eccentric injection mandrel of water injection well in oil fields for the utility model, the arrow among the figure is represented the flow direction of high pressure water injection.
The specific embodiment:
Embodiment of the present utility model: in the present embodiment, flow meter (6) adopts the CLJC type memory-type ultrasonic flowmeter of selling on the market in the prior art, during test traffic, flow meter is put into below the injection well downhole flow regulator that needs test earlier, total flow in the test oil pipe is mentioned flow meter above the injection well downhole flow regulator that needs test again, the total flow in the test oil pipe, automatically twice measurement result is subtracted each other by flow meter, obtain injection flow by the adjustable valve water nozzle of blanking plug; It is the servomotor of EC22 type that motor (5) adopts the model of selling on the market, carries the integrated circuit modules of motor-drive circuit (8) on the motor of this kind model, and its control signal is a Transistor-Transistor Logic level; It is the single-chip microcomputer of AT89C2051 that single-chip microcomputer (7) adopts the model of selling on the market, control circuit also has the power module that model is MAX667, wherein AT89C2051 is the core of entire circuit, be responsible for to receive the flow rate test value of flow meter and compare with the flow desired value, according to comparative result output control signal, the state of two control ends of control motor, make the motor forward or reverse, MAX667 is a source of stable pressure, be responsible for partly providing power supply to digital circuit, when supply voltage is lower than 10V, can also send interrupt signal to single-chip microcomputer (7), the under-voltage protection of realization system, centralizer (11) and pulling controller (12) can directly adopt the finished product of selling on the market in the prior art to assemble, during making, with centralizer (11) and the same respectively two ends that are connected cylindrical shell (9) surely of pulling controller (12), in cylindrical shell (9), install motor (5), flow meter (6) and single-chip microcomputer (7) and motor-drive circuit (8), a power output shaft (10) that can draw in and eject is installed on housing (9) again, and power output shaft (10) is connected with the rotating shaft of motor (5), the structure of power output shaft (10) can adopt the structure of cardan axis in the prior art, the gathering and the ejecting structure of power output shaft (10) are identical with the structure of existing throw in catcher, the output signal of flow meter (6) is connected to the signal input part of single-chip microcomputer (7), the output signal of single-chip microcomputer (7) is connected to motor-drive circuit (8), the output signal of motor-drive circuit (8) is connected to motor (5) controls its running, motor (5) is connected with power output shaft (10) and drives its rotation; When making power output shaft (10), produce the inner polygon jack k of power transmission shaft (4) socket connection on an energy and the blanking plug (1) that is installed in the water injection well in oil fields eccentric injection mandrel (13) at its front end.

Claims (2)

1, a kind of water injection well in oil fields injection allocation amount self-checking device, it comprises centralizer (11) and pulling controller (12), it is characterized in that: centralizer (11) and pulling controller (12) are connected to the two ends of a cylindrical shell (9), motor (5) is housed in cylindrical shell (9), flow meter (6) and single-chip microcomputer (7) and motor-drive circuit (8), a movable power output shaft (10) also is installed on housing (9), flow meter (6) output signal is to the signal input part of single-chip microcomputer (7), single-chip microcomputer (7) output signal is to motor-drive circuit (8), motor-drive circuit (8) output signal is controlled its running to motor (5), and motor (5) is connected with power output shaft (10) and drives its rotation.
2, water injection well in oil fields injection allocation amount self-checking device according to claim 1 is characterized in that: be provided with the inner polygon jack k that can be connected with the power transmission shaft (4) on the blanking plug (1) in being installed in water injection well in oil fields eccentric injection mandrel (13) at the front end of power output shaft (10).
CN 03252862 2003-09-19 2003-09-19 Automatic regulater for injection quantity for oil field water injection well Expired - Lifetime CN2653126Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03252862 CN2653126Y (en) 2003-09-19 2003-09-19 Automatic regulater for injection quantity for oil field water injection well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03252862 CN2653126Y (en) 2003-09-19 2003-09-19 Automatic regulater for injection quantity for oil field water injection well

Publications (1)

Publication Number Publication Date
CN2653126Y true CN2653126Y (en) 2004-11-03

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101270647B (en) * 2008-04-24 2011-05-11 中国海洋石油总公司 Injection allocation volume automatic regulation method for marine oil-field water injection well
CN102235164A (en) * 2010-04-22 2011-11-09 西安思坦仪器股份有限公司 Double-flow automatic measurement and regulation instrument for water injection well
CN102486086A (en) * 2010-12-03 2012-06-06 贵州航天凯山石油仪器有限公司 Method and device for improving butting reliability of underground flow measuring and adjusting instrument
CN103510906A (en) * 2013-10-21 2014-01-15 东北石油大学 Adjustable variable-differential-pressure constant-flow blanking plug
CN110080732A (en) * 2019-05-30 2019-08-02 大庆华油石油科技开发有限公司 A kind of Mechanical course injection well downhole flow regulator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101270647B (en) * 2008-04-24 2011-05-11 中国海洋石油总公司 Injection allocation volume automatic regulation method for marine oil-field water injection well
CN102235164A (en) * 2010-04-22 2011-11-09 西安思坦仪器股份有限公司 Double-flow automatic measurement and regulation instrument for water injection well
CN102235164B (en) * 2010-04-22 2013-09-04 西安思坦仪器股份有限公司 Double-flow automatic measurement and regulation instrument for water injection well
CN102486086A (en) * 2010-12-03 2012-06-06 贵州航天凯山石油仪器有限公司 Method and device for improving butting reliability of underground flow measuring and adjusting instrument
CN102486086B (en) * 2010-12-03 2015-07-01 贵州航天凯山石油仪器有限公司 Method and device for improving butting reliability of underground flow measuring and adjusting instrument
CN103510906A (en) * 2013-10-21 2014-01-15 东北石油大学 Adjustable variable-differential-pressure constant-flow blanking plug
CN103510906B (en) * 2013-10-21 2017-01-04 东北石油大学 A kind of adjustable variable-pressure difference constant current plug
CN110080732A (en) * 2019-05-30 2019-08-02 大庆华油石油科技开发有限公司 A kind of Mechanical course injection well downhole flow regulator
CN110080732B (en) * 2019-05-30 2019-12-20 大庆华油石油科技开发有限公司 Mechanical control water distributor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Guizhou Aerospace Control Technology Co., Ltd.

Assignor: Guizhou Aerospace Kaishan Petroleum Instrument Co., Ltd.

Contract fulfillment period: 2009.9.10 to 2013.9.10

Contract record no.: 2009520000014

Denomination of utility model: Automatic regulater for injection quantity for oil field water injection well

Granted publication date: 20041103

License type: Exclusive license

Record date: 20090923

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.10 TO 2013.9.10; CHANGE OF CONTRACT

Name of requester: GUIZHOU AEROSPACE CONTROL TECHNOLOGY CO., LTD.

Effective date: 20090923

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20130919

Granted publication date: 20041103