CN105178928A - Apparatus and method for measurement and adjustment of underground carbon dioxide flow - Google Patents
Apparatus and method for measurement and adjustment of underground carbon dioxide flow Download PDFInfo
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- CN105178928A CN105178928A CN201510259794.8A CN201510259794A CN105178928A CN 105178928 A CN105178928 A CN 105178928A CN 201510259794 A CN201510259794 A CN 201510259794A CN 105178928 A CN105178928 A CN 105178928A
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Abstract
The invention discloses an apparatus and method for measurement and adjustment of underground carbon dioxide flow, in particular to a flow apparatus and method for measuring underground flow of a carbon dioxide injected well. The apparatus and method are mainly characterized in that underground flow measurement is achieved using magnetic levitation techniques, a magnetic levitation mechanism is arranged inside a main housing, a spherical permanent magnet (a magnetic ball) is arranged inside the magnetic levitation mechanism, a superconducting electromagnet is arranged on the lower portion of this mechanism and is circular (ball seat), the superconducting electromagnet and the spherical permanent magnet form a ball seat mechanism, and the bottom of this mechanism is provided with a magnetic sensor and is connected with a surface flow processing module, thereby allowing a surface console to control an underground flowmeter and providing measurement while adjusting. The apparatus using the magnetic levitation techniques has the advantages such as simple structure, no contact, no friction, long service life and no need for lubricating; the apparatus is capable of measuring and controlling underground carbon dioxide flow in real time.
Description
Technical field
When the present invention is used for gas injection in the carbon dioxide injection displacement of reservoir oil of oil field, to the fields of measurement of down-hole carbon dioxide flow.
Background technology
Along with China's oil field carbon dioxide injection improves the development of recovery efficiency technique, relevant corresponding device is simultaneously also required for people.In order to improve oil recovery, at present, when being use carbon dioxide drive, the Real-Time Monitoring to downhole flow and control cannot be realized.
According to carbon dioxide, there is perishable, solvability and easily reach supercriticality and conductance is low in the supercritical state characteristic by force, at high temperature under high pressure, and differently inject the otherness that stratum has permeability.Therefore, can monitor at any time and regulate and control the uninterrupted of down-hole injecting carbon dioxide, for effective carbon dioxide injection, there is higher meaning.
Current oil field adopts the conventional downhole flowmeter for water injection well mostly, and carbon dioxide has the advantages that corrosivity and solvability easily extract by force lubrication oil, if use the down-hole mechanical formula flow meter that oil field is conventional at present, as turbine flowmeter etc., the problems such as its life-span short, component of machine etc. is easy to wear, certainty of measurement reduction can be caused; For contactless flow meter, because electromagnetic flowmeter can only measure conductor flow, then in carbon dioxide injection displacement of reservoir oil well, method is normally used; And subsurface environment being had to the feature of high-temperature, high pressure fluid state labile, ultrasonic flowmeter also has measurement not problem appearance accurately.
Summary of the invention
For above problem, the object of the invention is to utilize magnetic suspension principle technology, there is provided a kind of structure simple, facilitate long period of operation to use, pipe with small pipe diameter space environment can be applied to, and can measure in real time and regulate and control the method and apparatus of down-hole carbon dioxide flow.
For realizing above object, the present invention realizes according to following methods:
The present invention is installed on down-hole carbon dioxide injection and flows through to be measured section; Main casing and oil pipe socket connect as one, and main casing is inner flows through pipeline for fluid.
Magnetic levitation ball seat mechanism is equipped with in described fluid circuit;
Magnetic levitation ball seat mechanism is the conical pipe that diminishes gradually of diameter from top to bottom, magnetic suspension mechanism inside is provided with ball-type permanent magnet (magnetic ball), mechanism bottom is provided with superconducting electromagnet, and superconducting electromagnet is annular (ball seat), forms ball seat mechanism with ball-type permanent magnet; Because carbon dioxide is flowed by the gap between magnetic ball and conical pipe from the top down, so the flow section area at differing heights place is different, also different by the flow of ball seat, there is corresponding relation between the two, thus the sink-float of magnetic ball is controlled, the final flow regulating down-hole carbon dioxide by changing magnetic force size between magnetic suspension ball seat;
Lower end is connected with magnetic force sensing processor; By utilizing the size thus the sink-float controlling magnetic ball that control magnetic force between magnetic suspension ball seat, the final flow realizing control and metering carbon dioxide;
The measurement carbon dioxide injection well down-hole carbon dioxide flow supporting with the present invention, the regulate and control method realizing down-hole carbon dioxide flow are:
Fluid flows through in main casing inner conical pipeline;
In the magnetic levitation ball seat mechanism of conical pipeline inside, annular super conduction electromagnet ball seat and ball-type permanent magnet have the active force repelled each other each other, utilize magnetic suspension principle, according to the current strength size of giving the energising of annular super conduction electromagnet ball seat, change the repulsive force size between it and magnetic spheroid, thus control the sinking degree of spheroid, the size of the annular space namely in conical pipe and between magnetic spheroid, thus control the size of flow when fluid flows through;
Magnetic levitation ball seat mechanism bottom is connected with magnetometric sensor, the magnetic force between ball seat mechanism can be converted to the signal of telecommunication, then the signal of telecommunication is sent to flow signal processing module; Ground flow signal processing module obtains flow parameter according to the signal of telecommunication received;
Realize Real-Time Monitoring and the regulation and control of downhole flow faced by ground.
The present invention takes above technology, and it has the following advantages:
1. can realize Real-Time Monitoring and the regulation and control of down-hole injecting carbon dioxide flow, utilize magnetic levitation technology, the uninterrupted of down-hole carbon dioxide can being regulated and controled by ground control cabinet according to demand at any time, reducing because measuring the loss caused, for oil field saves operation and maintenance cost;
2. installation and maintenance of the present invention are convenient, need not move tubing string and namely can keep in repair, and the present invention does not need to use lubrication oil, solves the puzzlement that carbon dioxide abstraction lubrication oil makes component normally run.
3. structure of the present invention simple, be easy to safeguard and use, volume is little is applicable to multiple caliber, and is not subject to the impacts such as temperature, pressure, can, for a long time in down-hole application, be the measurement of a kind of ideal energy saving type and regulating flow equipment.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
1-main casing in figure, 2-flange box cupling, 3-ball-type permanent magnet, 4-annular super conduction electromagnetism ball seat, 5-magnetometric sensor, 6-feed liquor support, 7-conical pipe, 8-magnetic ball backstay, 9-liquid outlet, 10-one way valve, 11-salvages seat.
Detailed description of the invention
In order to make technical solution of the present invention, enforcement object and advantage more clear, below in conjunction with accompanying drawing, explanation is further expalined to the present invention.Be below to schematic elaboration of the present invention and explanation, not as a limitation of the invention.
The present invention is installed on carbon dioxide injection displacement of reservoir oil down-hole, needs the carbon dioxide section of flowing through of monitoring regulation and control, and Fig. 1 is that down-hole of the present invention carbon dioxide surveys tune equipment schematic diagram.Below in conjunction with accompanying drawing, present device is described further:
Down-hole of the present invention carbon dioxide is surveyed tune equipment and is comprised main casing 1, main casing 1 is fixed down-hole by the mode of upper lower flange box cupling 2 and is treated on the oil pipe of discharge site, main casing 1 inside is the conical pipe 7 of reduced diameter from top to bottom, conical pipe 7 upper end is feed liquor support 6, and the carbon dioxide of injection enters into conical pipe 7 inside from upper end feed liquor support 6; When ground stops injecting carbon dioxide, for preventing stratum liquid reverse flow from becoming a mandarin in gauge, be provided with one way valve 10 in delivery port 9 lower end; Be connected with on conical pipe 7 top and salvage seat 11, when needing equipment to stop using or need maintenance, fishing head can be used to connect inner salvaging seat 11, interior tapered pipe is proposed.
Flow through magnetic levitation ball seat mechanism, be positioned at conical pipe inside, comprise: ball-type permanent magnet 3, magnetic ball backstay 8, annular super conduction electromagnetism ball seat 4, by controlling the current strength of annular superconducting electromagnet ball seat 4 energising, change the repulsive force size between it and ball-type permanent magnet 3, change the upper-lower position of ball-type permanent magnet 3 at magnetic ball backstay 8, thus change magnetic ball 3 and the size of conical pipe annular space, control the size of carbon dioxide flow;
Magnetic levitation ball seat mechanism bottom is connected with magnetometric sensor 5, magnetic force size between magnetic ball 3 and ball seat 4 can be converted to the signal of telecommunication, the signal of telecommunication is by wire transmission to ground flow signal processing module, and ground flow signal processing module obtains flow parameter according to the signal of telecommunication received.
Based on same inventive concept, present invention also offers a kind of down-hole carbon dioxide flow measuring and regulating method, as follows:
Fig. 2 is the process chart of down-hole of the present invention carbon dioxide measuring and regulating method.As shown in Figure 2, measuring and regulating method flow process of the present invention is:
Step 2-1, to be measured section of carbon dioxide injection, to be measured section of carbon dioxide injection, magnetic levitation ball seat mechanism produces certain magnetic force;
Step 2-2, the magnetic force signal between magnetic suspension ball seat is converted to the signal of telecommunication by magnetometric sensor;
Step 2-3, the signal of telecommunication conducts to ground flow processing module by wire;
Step 2-4, flow processing module converts electrical signals to flow parameter;
Step 2-5, ground flow console passes through the wire transmission signal of telecommunication as required to magnetometric sensor;
Step 2-6, down-hole magnetometric sensor converts electrical signals to magnetic signal, controls the size of magnetic force between magnetic levitation ball seat mechanism;
Step 2-7, changes the sink-float degree of magnetic ball according to the large I of magnetic force between magnetic suspension ball seat, and then control well carbon dioxide uninterrupted;
Flow process is known as shown in Figure 2, and the method for testing of carbon dioxide flow is surveyed in down-hole of the present invention, can realize the Real-Time Monitoring of downhole flow, and can realize regulating and controlling the electronization of downhole flow.
In sum, being not difficult to find out that down-hole of the present invention carbon dioxide flow is surveyed adjusts Apparatus and method for can realize the Real-Time Monitoring of down-hole carbon dioxide injection flow and the object of regulation and control; It is simple that the present invention has structure, is easy to safeguard, bearing-free loss, without the need to lubrication, can the advantage of Long-Time Service.
Claims (4)
1. down-hole carbon dioxide flow is surveyed and is adjusted Apparatus and method for, comprising: be provided with magnetic levitation ball seat mechanism part in main casing inside; Inner magnet suspension ball seat mechanism is the conical pipe that diminishes gradually of diameter from top to bottom, and conical pipe is equipped with ball-type permanent magnet, and bottom is annular super conduction electromagnetism ball seat, and lower end is connected with magnetic force sensing processor; Main casing lower end is connected with magnetic suspension control module outside, can control drifting along, with the size of control well carbon dioxide flow of magnetic ball in magnetic suspension mechanism.
2. down-hole carbon dioxide flow measuring and regulating method and equipment according to right 1, is characterized in that: utilize magnetic suspension principle, by combining of magnetic suspension mechanism and ball seat mechanism, realizes the size of ground regulation and control to down-hole carbon dioxide flow.
3. as described in right 1, down-hole carbon dioxide flow is surveyed and is adjusted Apparatus and method for, it is characterized in that: regulated and controled the size of down-hole carbon dioxide flow as required by magnetic levitation ball seat mechanism.Magnetic levitation ball seat mechanism comprises: ball-type permanent magnet, magnetic ball backstay, annular super conduction electromagnetism ball seat and magnetic suspension movement control module in conical pipe.
4. down-hole carbon dioxide flow measuring and regulating method and equipment according to right 1, its feature exists: fluid flows through magnetic levitation ball seat mechanism, the magnetic force produced between magnetic suspension ball seat is converted to the signal of telecommunication by magnetometric sensor, then the signal of telecommunication is sent to flow signal processing module; Ground flow signal processing module obtains flow parameter according to the signal of telecommunication received.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510259794.8A CN105178928A (en) | 2015-05-20 | 2015-05-20 | Apparatus and method for measurement and adjustment of underground carbon dioxide flow |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510259794.8A CN105178928A (en) | 2015-05-20 | 2015-05-20 | Apparatus and method for measurement and adjustment of underground carbon dioxide flow |
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| CN105178928A true CN105178928A (en) | 2015-12-23 |
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| CN201510259794.8A Pending CN105178928A (en) | 2015-05-20 | 2015-05-20 | Apparatus and method for measurement and adjustment of underground carbon dioxide flow |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105595721A (en) * | 2016-03-09 | 2016-05-25 | 罗福仲 | Wine pot with convenience in pouring wine |
| CN105662080A (en) * | 2016-03-09 | 2016-06-15 | 罗福仲 | Pouring device of bottled wine |
| CN107271305A (en) * | 2017-05-27 | 2017-10-20 | 常州大学 | HTHP injecting type erosion-corrosion experiment device |
| CN116971770A (en) * | 2023-09-22 | 2023-10-31 | 西南石油大学 | Well site carbon emission monitoring system |
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| US20090008078A1 (en) * | 2007-03-13 | 2009-01-08 | Schlumberger Technology Corporation | Flow control assembly having a fixed flow control device and an adjustable flow control device |
| CN101793535A (en) * | 2009-12-20 | 2010-08-04 | 西安信唯信息科技有限公司 | Magnetic-suspension optoelectronic scanning type flow measurement method |
| CN103266879A (en) * | 2013-05-09 | 2013-08-28 | 中国石油天然气股份有限公司 | Layered steam injection measuring system and flow recorder |
| CN103410475A (en) * | 2013-08-07 | 2013-11-27 | 西安石油大学 | Environment-friendly annular continuous dosing automatic device for oil-gas wells and dosing method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1967160A (en) * | 2005-11-18 | 2007-05-23 | 王永忠 | Wide-range float type flow sensor |
| US20090008078A1 (en) * | 2007-03-13 | 2009-01-08 | Schlumberger Technology Corporation | Flow control assembly having a fixed flow control device and an adjustable flow control device |
| CN101793535A (en) * | 2009-12-20 | 2010-08-04 | 西安信唯信息科技有限公司 | Magnetic-suspension optoelectronic scanning type flow measurement method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105595721A (en) * | 2016-03-09 | 2016-05-25 | 罗福仲 | Wine pot with convenience in pouring wine |
| CN105662080A (en) * | 2016-03-09 | 2016-06-15 | 罗福仲 | Pouring device of bottled wine |
| CN105662080B (en) * | 2016-03-09 | 2018-11-06 | 新沂市芭缇雅商贸有限公司 | A kind of serve device of bottle of liquor |
| CN107271305A (en) * | 2017-05-27 | 2017-10-20 | 常州大学 | HTHP injecting type erosion-corrosion experiment device |
| CN107271305B (en) * | 2017-05-27 | 2019-05-28 | 常州大学 | High temperature and pressure injecting type erosion-corrosion experiment device |
| CN116971770A (en) * | 2023-09-22 | 2023-10-31 | 西南石油大学 | Well site carbon emission monitoring system |
| CN116971770B (en) * | 2023-09-22 | 2023-11-28 | 西南石油大学 | Well site carbon emission monitoring system |
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Application publication date: 20151223 |