CN104524817B - The Controlling System of a kind of gas-liquid separation device - Google Patents
The Controlling System of a kind of gas-liquid separation device Download PDFInfo
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- CN104524817B CN104524817B CN201410848292.4A CN201410848292A CN104524817B CN 104524817 B CN104524817 B CN 104524817B CN 201410848292 A CN201410848292 A CN 201410848292A CN 104524817 B CN104524817 B CN 104524817B
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Abstract
The present invention provides the Controlling System of a kind of gas-liquid separation device, the Controlling System of a kind of gas-liquid separation device, comprise vertical gas-liquid separator, described vertical gas-liquid separator upper end outlet is connected with the 3rd magnetic valve by pipeline, and the 3rd is disposed with gas meter, gas manometer between magnetic valve and vertical gas-liquid separator; The lower part outlet of described vertical gas-liquid separator is connected with the first magnetic valve by pipeline; The liquidometer being provided with detection liquid level on described vertical gas-liquid separator, the Signal transmissions detected controls opening and closing of the first magnetic valve to controlling elements, controlling elements by the signal detected. Gas clearance of the present invention reaches more than 98%, and bearing resistance reaches 35MPa, top hole pressure��2MPa. By control so that in separating tank, liquid level fluctuates in safety range, has all the time " water cushion ", does not make down washing, does not also make to alter on liquid stream, reaches the object of gas-liquid separation.
Description
Technical field
The invention belongs to oil-gas field sewage disposal, ground test, gas testing field of operation, in particular to the Controlling System of a kind of gas-liquid separation device.
Background technology
Spray discharge opeing and test phase is put after gasser measures to reform, Sweet natural gas mixed fracturing outlet liquid and local water etc. spray well head together in well, it is discharged in clean-up pit by pipeline, liquid outlet quantity carries out natural gas fired after reducing, not only erosion clean-up pit, and a large amount of Sweet natural gas is disposed in air waste and falls. To carry out fracturing outlet liquid recycling or Sweet natural gas Collection utilization, it is necessary to invent a kind of device and well head is returned the high-pressure gas-liquid mixture ejected be separated.
Summary of the invention
In well, the Controlling System that waste the present invention that well head causes provides a kind of gas-liquid separation device is sprayed together in order to overcome Sweet natural gas mixed fracturing outlet liquid and local water etc., fracturing outlet liquid recycling or Sweet natural gas Collection utilization can be carried out, Controlling System makes liquid level in separating tank fluctuate in safety range, all the time have " water cushion ", do not make down washing, do not make liquid stream is altered, reach the object of gas-liquid separation yet.
The technical scheme of the present invention is:
A Controlling System for gas-liquid separation device, comprises vertical gas-liquid separator, and described vertical gas-liquid separator upper end outlet is connected with the 3rd magnetic valve by pipeline, and the 3rd is provided with gas meter between magnetic valve and vertical gas-liquid separator;
The lower part outlet of described vertical gas-liquid separator is connected with the first magnetic valve by pipeline;
The liquidometer being provided with detection liquid level on described vertical gas-liquid separator, also comprises controlling elements, and controlling elements receives the signal that liquidometer detects, controls opening and closing of the first magnetic valve after analyzing and processing; The signal that controlling elements receiver gases under meter sends also carries out analyzing and processing, controls opening with closed of the 3rd magnetic valve.
Controlling elements becomes with gas flow-control module set by Level Detection control module, and described Level Detection control module one end is connected with liquidometer, and the other end is connected with the first magnetic valve; Gas flow control module one end is connected with gas meter, and the other end is connected with the 3rd magnetic valve.
Described controlling elements also comprises gaseous tension control module, pipeline between described gas meter and vertical gas-liquid separator is also provided with gas manometer, gas manometer is connected with gaseous tension control module, and gaseous tension control module is also connected with the 3rd magnetic valve.
The lower part outlet of described vertical gas-liquid separator is also connected with the 2nd magnetic valve by pipeline, and described first magnetic valve and the 2nd magnetic valve are connected in parallel, the opening and closing of controlling elements control the 2nd magnetic valve.
The technique effect of the present invention is:
High-pressure gas-liquid tripping device Controlling System of the present invention comprises liquidometer, controlling elements magnetic valve, gas manometer, gas meter, and controlling elements is connected with liquidometer, to control liquid flow control valve; Controlling elements is connected with gas meter with gas manometer simultaneously, to control gas flow control valve. By control so that vertical gas-liquid separator top liquid level fluctuates in safety range, has all the time " water cushion ", does not make down washing, does not also make to alter on liquid stream, reaches the object of gas-liquid separation.
The present invention can solve an isolation technique difficult problem for high-pressure gas-liquid mixture, and when can realize work, gas tube absence of liquid is returned out, and tapping line bubble-free is returned out, and gas clearance reaches more than 98%, and bearing resistance reaches 35MPa, top hole pressure��2MPa.
It is described in detail below with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Controlling System of gas-liquid separation device.
In figure, Reference numeral is: 1, vertical gas-liquid separator; 2, gas manometer; 3, gas meter; 4, liquidometer; 5, controlling elements; 6, the first magnetic valve; 7, the 2nd magnetic valve; 8, the 3rd magnetic valve.
Embodiment
Embodiment 1:
In order to overcome the waste that Sweet natural gas mixed fracturing outlet liquid and local water etc. spray well head together in well and cause, the present invention provides the Controlling System of a kind of gas-liquid separation device as shown in Figure 1, fracturing outlet liquid recycling or Sweet natural gas Collection utilization can be carried out, Controlling System makes liquid level in separating tank fluctuate in safety range, all the time have " water cushion ", do not make down washing, do not make liquid stream is altered yet, reach the object of gas-liquid separation.
A Controlling System for gas-liquid separation device, comprises vertical gas-liquid separator 1, and described vertical gas-liquid separator 1 upper end outlet is connected with by pipeline between the 3rd magnetic valve the 8, three magnetic valve 8 and vertical gas-liquid separator 1 and is provided with gas meter 3;
The lower part outlet of described vertical gas-liquid separator 1 is connected with the first magnetic valve 6 by pipeline;
The liquidometer 4 being provided with detection liquid level on described vertical gas-liquid separator 1, also comprises controlling elements 5, and controlling elements 5 receives the signal that liquidometer 4 detects, controls opening and closing of the first magnetic valve 6 after analyzing and processing; The signal that controlling elements 5 receiver gases under meter 3 sends also carries out analyzing and processing, controls opening with closed of the 3rd magnetic valve 8.
The liquidometer 4 being provided with detection liquid level on vertical gas-liquid separator 1, the Signal transmissions detected controls opening and closing of the first magnetic valve 6 to controlling elements 5, controlling elements 5 by the signal detected; The signal that controlling elements 5 receiving body under meter 3 and gas manometer 2 send also carries out analyzing and processing, controls opening with closed of the 3rd magnetic valve 8.
The Level Detection control module adopted in the present embodiment is the FU 95S of Ku Da Science and Technology Ltd. of Shenzhen, and gas flow control module is the model of HORIBA group company is SEC-N100, the UR-Z700 of gaseous tension control module model HORIBA group company.
Controlling elements 5 becomes with gas flow-control module set by Level Detection control module, and described Level Detection control module one end is connected with liquidometer 4, and the other end is connected with the first magnetic valve 6; Gas flow control module one end is connected with gas meter 3, and the other end is connected with the 3rd magnetic valve 8.
Described controlling elements 5 also comprises gaseous tension control module, pipeline between described gas meter 3 and vertical gas-liquid separator 1 is also provided with gas manometer 2, gas manometer 2 is connected with gaseous tension control module, and gaseous tension control module is also connected with the 3rd magnetic valve 8.
Gas manometer 2, gas meter 3 send signal to controlling elements 5, and controlling elements 5 after Data Management Analysis, will send instruction to No. three magnetic valve 8, and result is displayed on controlling elements 5.
Liquidometer 4 detects the liquid level in vertical gas-liquid separator 1, by Signal transmissions to controlling elements 5, when liquid level minimum close to A point time, open control the 3rd magnetic valve 8 valve, close on the first magnetic valve 6 and the 2nd magnetic valve 7 valve arranged, ensure that vertical gas-liquid separator has " water cushion "; When liquid level the highest close to C point time, the valve of the 3rd magnetic valve 8 closes little to anticlockwise, or the valve passage opened on the 2nd magnetic valve 7 in parallel, the valve simultaneously arranged on the first magnetic valve 6 and the 2nd magnetic valve 7 is opened greatly to right rotation, even standard-sized sheet, liquid level is declined, if liquid level continues to rise, then closes the 3rd magnetic valve 8 thus force liquid level to decline.
Normally there are liquid, sand, there is huge discharge gas situation: now gas, liquid, solid three-phase flows to into cyclonic separation, gas rises and enters gas pipeline, surveyed airshed and the requirement of well head back pressure according to gas meter 3, regulate the valve in gas circuit to control well head back pressure by controlling elements 5 motorized motions the 3rd magnetic valve 8.
Normally there are liquid, sand, have huge discharge gas situation: liquid-solid two-phase enters vertical gas-liquid separator bottom due to centrifugal force and gravity. Liquidometer 4 monitoring liquid liquid level, when liquid level reaches location A, drive magnetic valve to open in fluid path the valve arranged by controlling elements 5, keep liquid level fluctuate at A line: liquid level upwards time valve to right rotation, open " greatly " a bit, when liquid level is downward, 3rd magnetic valve 8 closes to anticlockwise, closes " little " a bit, remains in tank and have " water cushion ", isolation upper gas, the fluid path under not making it scurry into it. Now, the increase of tolerance, the processing power of vertical gas-liquid separator is higher than sign treatment capacity.
Tolerance is constant or increases and liquid measure also increases situation: when liquid level reaches B point, all opens in fluid path the first magnetic valve 6 arranged and the 2nd magnetic valve 7 in advance, makes liquid level return and continue to rise.
Tolerance reduces, until being all liquid case without gas: this device gas circuit is monitored by gas meter 3 and gas manometer 2, the pressure of gas circuit depends primarily on the back pressure to well head, when tolerance reduces, 3rd magnetic valve 8 is fastened to keep back pressure, to, when being all liquid, air pressure is also zero, now gas circuit can be closed, and does not affect fluid loop. When being all liquid, liquid is heavy collection by eddy flow, and when liquid level reaches A, fluid path valve is opened, and regulates situation as above.
The situation that liquid measure slowly diminishes: little or when diminishing, gas circuit is without impact, and it only controls by the impact of well head back pressure in liquid measure. When starting working, liquid measure is lower than B line, and the 3rd magnetic valve 8 is not opened, and in working process, liquid measure is lower than B line, and the 3rd magnetic valve 8 closes " little ", forces liquid level to be gone up, if liquid level can not rise, the 3rd magnetic valve 8 just cuts out, and just opens again until liquid level rises B line. The situation that liquid measure diminishes suddenly time the most dangerous is: import liquid measure is suddenly by 2 sides/minute drop to zero, and now the 3rd magnetic valve 8 is in standard-sized sheet state. Now owing to liquid level decline causes valve pass little, when liquid level drops to a certain specific position A, controlling elements 5 makes the valve of gas circuit open bigger, make the pressure drop of liquid level, at this moment the first magnetic valve 6 of fluid path continues to open, fluid path resistance increases, and liquid level lowering speed slows down, and is enough to make the valve of fluid path thoroughly to close and leave in fluid path " water cushion ".
Gas through the 3rd magnetic valve 8 enters gas transmission line, and the liquid isolated in the first magnetic valve 6, the 2nd magnetic valve 7 enters the further process of low pressure.
By control so that in separating tank, liquid level fluctuates in safety range, has all the time " water cushion ", does not make down washing, does not also make to alter on liquid stream, reaches the object of gas-liquid separation.
Embodiment 2:
On basis based on embodiment 1, the lower part outlet of described vertical gas-liquid separator 1 is also connected with the 2nd magnetic valve 7 by pipeline, and described first magnetic valve 6 and the 2nd magnetic valve 7 are connected in parallel, and controlling elements 5 controls the opening and closing of the 2nd magnetic valve 7.
In tolerance constant or increase and liquid measure also increases situation: when reaching B point when liquid level, all open the valve of fluid path in advance, if the first magnetic valve 6 standard-sized sheet still can not make liquid level return and continue to rise, then open make-up valve path in parallel, it is possible to adopt the 2nd magnetic valve 7 to regulate. If in extreme situation, two valves are opened, liquid level still continue on rise to C point, now, controller commander's gas circuit performs valve and closes little until closing the 3rd magnetic valve 8, and adjusting air valve is until be tending towards closing.
Tolerance reduces, until being all liquid case without gas: this device gas circuit is monitored by gas meter 3 and gas manometer 2, the pressure of gas circuit depends primarily on the back pressure to well head, when tolerance reduces, gas circuit valve is fastened to keep back pressure, to, when being all liquid, air pressure is also zero, now gas circuit can be closed, and does not affect fluid loop. When being all liquid, liquid is heavy collection by eddy flow, and when liquid level reaches A, fluid path valve is opened, and regulates situation as above. Another also can on access to plant mouth a pipeline in parallel, when being all liquid, walk this pipeline.
The situation that liquid measure (slowly) diminishes: little or when diminishing, gas circuit is without impact, and it only controls by the impact of well head back pressure in liquid measure. When starting working, liquid measure is lower than B line, and valve is not opened, and in working process, liquid measure closes " little " lower than B line, changeover valve, forces liquid level to be gone up, if liquid level can not rise, valve just cuts out, and just opens again until liquid level rises B line. The situation that liquid measure diminishes suddenly time the most dangerous is: import liquid measure is suddenly by 2 sides/minute drop to zero, and now valve is in standard-sized sheet state. Now owing to liquid level decline causes valve pass little, when liquid level drops to a certain specific position A, controlling elements 5 makes the valve of gas circuit open bigger, make the pressure drop of liquid level, at this moment the valve of fluid path continues descending, fluid path resistance increases, and liquid level lowering speed slows down, and is enough to make the valve of fluid path thoroughly to close and leave in fluid path " water cushion ".
Fracturing outlet liquid recycling or Sweet natural gas Collection utilization can be carried out, by control, to the left and right adjusting of valve, the size allowing valve open is different, liquid level in separating tank is fluctuated in safety range, has all the time " water cushion ", do not make down washing, do not make liquid stream is altered, reach the object of gas-liquid separation yet.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (1)
1. the Controlling System of a gas-liquid separation device, it is characterized in that: comprise vertical gas-liquid separator (1), described vertical gas-liquid separator (1) upper end outlet is connected with the 3rd magnetic valve (8) by pipeline, is provided with gas meter (3) between the 3rd magnetic valve (8) and vertical gas-liquid separator (1);
The lower part outlet of described vertical gas-liquid separator (1) is connected with the first magnetic valve (6) by pipeline;
The liquidometer (4) being provided with detection liquid level on described vertical gas-liquid separator (1), also comprises controlling elements (5), and controlling elements (5) receives the signal that liquidometer (4) detects, controls opening and closing of the first magnetic valve (6) after analyzing and processing; The signal that controlling elements (5) receiver gases under meter (3) sends also carries out analyzing and processing, controls opening and closing of the 3rd magnetic valve (8);
Controlling elements (5) becomes with gas flow-control module set by Level Detection control module, and described Level Detection control module one end is connected with liquidometer (4), and the other end is connected with the first magnetic valve (6); Gas flow control module one end is connected with gas meter (3), and the other end is connected with the 3rd magnetic valve (8);
Described controlling elements (5) also comprises gaseous tension control module, pipeline between described gas meter (3) and vertical gas-liquid separator (1) is also provided with gas manometer (2), gas manometer (2) is connected with gaseous tension control module, and gaseous tension control module is also connected with the 3rd magnetic valve (8);
The lower part outlet of described vertical gas-liquid separator (1) is also connected with the 2nd magnetic valve (7) by pipeline, and described first magnetic valve (6) and the 2nd magnetic valve (7) are connected in parallel, the opening and closing of controlling elements (5) control the 2nd magnetic valve (7);
Liquid level in described liquidometer (4) detection vertical gas-liquid separator (1), by Signal transmissions to controlling elements (5), when liquid level minimum close to A point time, open the valve of control the 3rd magnetic valve (8), close the valve of the upper setting of the first magnetic valve (6) and the 2nd magnetic valve (7); When liquid level the highest close to C point time, the valve of the 3rd magnetic valve (8) closes little to anticlockwise, or the valve passage opened on the 2nd magnetic valve (7) in parallel, first magnetic valve (6) and the upper valve arranged of the 2nd magnetic valve (7) are opened greatly to right rotation simultaneously, even standard-sized sheet, liquid level is declined, if liquid level continues to rise, then closes the 3rd magnetic valve (8) thus force liquid level to decline.
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| CN201410848292.4A CN104524817B (en) | 2014-12-31 | 2014-12-31 | The Controlling System of a kind of gas-liquid separation device |
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Cited By (1)
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| CN110882589A (en) * | 2019-10-14 | 2020-03-17 | 湖南汉华京电清洁能源科技有限公司 | Control system based on air purification and separation device |
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| CN104857789A (en) * | 2015-05-19 | 2015-08-26 | 大连派思燃气系统股份有限公司 | Automatic blowdown system for agglomerate filter |
| CN106761656A (en) * | 2017-02-28 | 2017-05-31 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of separator |
| CN108489791B (en) * | 2018-06-20 | 2024-02-13 | 三峡大学 | Automatic separation device for water and gas in pipeline and use method |
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| US4737168A (en) * | 1987-07-22 | 1988-04-12 | U.S. Enertek, Inc. | Solids separation system for natural gas wells |
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Effective date of registration: 20211014 Address after: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING Co. Address before: 710018 room 1207, Changqing building, Changqing Xing Long Yuan District, Xi'an, Shaanxi Patentee before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. Patentee before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING Co. |