CN103982170B - Middle low consumption of the liquid, atm number oil well three phase metering device - Google Patents
Middle low consumption of the liquid, atm number oil well three phase metering device Download PDFInfo
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- CN103982170B CN103982170B CN201410141542.0A CN201410141542A CN103982170B CN 103982170 B CN103982170 B CN 103982170B CN 201410141542 A CN201410141542 A CN 201410141542A CN 103982170 B CN103982170 B CN 103982170B
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Abstract
The present invention relates to low consumption of the liquid in one, atm number oil well three phase metering device, mainly comprise gas-liquid cyclone separator, flow straightener, gas circuit surge tank, gas circuit metered flow meter, tipping bin flowmeter, differential pressure transmitter.The major function of gas-liquid cyclone separator has been the gas-liquid separation work that oil well carrys out liquid; The major function of flow straightener realizes residual gas in gas-liquid buffering current stabilization, oil-water separation; The major function of gas circuit surge tank realizes the profit in gas to carry out secondary separation; The major function of gas circuit metered flow meter, tipping bin flowmeter carries out the metering of flow real-time online to gas circuit, fluid path medium; The major function of differential pressure transmitter is moisture content on-line measurement, the present invention is applicable to three phase metering and the moisture content on-line measurement of accurately measuring the Oil/gas Well that interval is fuel-displaced, tolerance is comparatively large, liquid measure is little, solve the large or unmeasurable problem of well oil output error in dipping, realize the accurately accurate measurement automatically of well oil output, for oil reservoir fine-grained management provides data accurately.
Description
Technical field
The present invention relates to low consumption of the liquid in one, atm number oil well three-phase metering, the gas of liquid measure little oil well, water, oily three phase metering comparatively large in particular for fuel-displaced, the tolerance of interval.
Background technology
Single well liquid outlet quantity is the basic data of oil field development, is the important evidence of geological analysis, development plan design.China's major part old filed enters middle-late waterflooding stage, production decline is inevitable, the difficulty of oil well measurement is increasing, in addition the explication de texte produced and reduce costs the demand of improve effects, to the requirement of one-well metering technology also in raising, therefore the accuracy of one-well metering technology, reliability become issues that need special attention.
At present, domestic each oil field mainly adopts glass tube oil gauge, software instrument gauging, scale car gauging and measures well yield according to modes such as stream pressure estimation output.All there is its limitation in this several gauging mode, comparatively large, that liquid measure the is little oil well result of use of, tolerance fuel-displaced to interval is very undesirable, and cannot carry out moisture content on-line measurement.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide low consumption of the liquid in one, atm number oil well three phase metering device, with a kind of new frame mode, meet the gauging requirement of different oil production method, use differential pressure transmitter to realize moisture content on-line measurement simultaneously, be particularly applicable to the Oil, Water, Gas three phase metering that individual well accurately measures the Oil/gas Well that interval is fuel-displaced, tolerance is comparatively large, liquid measure is little.
The present invention is realized by following scheme:
1, low consumption of the liquid, atm number oil well three phase metering device in one, comprises gas-liquid cyclone separator, flow straightener, gas circuit surge tank, differential pressure transmitter, gas-liquid converges tank and base plate.Gas-liquid cyclone separator shell is vertical cylinder body, cylindrical shell sidepiece connecting media inlet duct, bottom is connected with overflow pipe, barrel tip is connected with blow-off line and blowoff valve, gas-liquid cyclone separator inwall is equipped with two spirality separation assemblies, have the conical surface gas-liquid separation baffle plate of mouth of pipe pyramidal structure down in two spirality separation assemblies, there is the secondary air dividing plate of mouth of pipe pyramidal structure down two spirality separation assembly upper ends;
Flow straightener shell is vertical cylinder body, and top is communicated with gas circuit surge tank, and upper lateral part is communicated with tipping bin flowmeter, and following side is connected with gas-liquid cyclone separator by overflow pipe, and bottom connects blow-off line and blowoff valve; Enclosure interior is provided with overflow pipe upward and gas-liquid isolating cylinder, overflow pipe top is provided with overfall, there is stationary housing overflow head piece baffle plate overfall upper end, outside overflow pipe, middle and upper part is fixed umbrella-type profit and is divided gas division board, differential pressure transmitter is installed in gas-liquid isolating cylinder side, and differential pressure transmitter upper end is connected with tipping bin flowmeter by fluid path pipeline;
Gas circuit surge tank housing is horizontal cylinder body, and gas circuit surge tank entrance point is provided with spherical baffle plate, and middle part is provided with liquid baffle plate; Cylindrical shell one end is communicated with gas-liquid cyclone separator, and the other end connects the import of gas circuit metered flow meter;
The housing that gas-liquid converges tank is horizontal cylinder body, and inside is provided with air and liquid mixer, and top connects tipping bin flowmeter outlet, and gas circuit house steward one end and gas-liquid are converged tank import and be connected, and the gas circuit house steward other end exports with gas circuit metered flow meter and is connected.
advantage of the present invention:
1, the present invention is by pressure self-balancing technical controlling liquid level, does not need Mechanical course or electric-control system, thus improves the reliability of the longtime running of equipment, decrease equipment fault origination point;
2, the present invention is by rotational flow separation, baffling separation, the combination of Gravity Separation science, and separating effect is good.The spirality separation assembly arranged, the drop in separation bubble, realizes gas-liquid centrifugal cyclone and is separated; Arranging spherical baffle plate and liquid baffle plate etc. in gas-liquid separation baffle plate and secondary liquid separatnig plate, gas circuit surge tank stops containing liquid gas, and gas can baffling and walking, and liquid is forward attached on baffle plate wall and realizes baffling be separated because the effect of gravity pools together downwards.When suffered by flow straightener drop, gravity is greater than the buoyancy of its gas, drop will settle from gas phase, thus realize Gravity Separation.
3, present device floor space is little, fundamentally solves low yield, gap carrys out the accurate measurement that liquid carrys out gas and oil well, uses differential pressure transmitter to carry out moisture content on-line measurement simultaneously;
4, overall structure of the present invention is simple, volume is little, cost is low, and measuring precision of water content in water is ± 2.0%, liquid volume measurement precision≤± 5%, gas gauge accuracy of measurement≤± 8%.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure:
1-medium inlet pipeline;
2-gas-liquid cyclone separator, 201-spirality separation assembly, 202-gas-liquid separation baffle plate, 203-bis-liquid separatnig plates;
3-overflow pipe;
4-flow straightener, 401-overfall, 402-overfall baffle plate, 403-gas-liquid isolating cylinder, 404-profit divides gas division board;
5-gas circuit surge tank, the spherical baffle plate of 501-, 502-liquid baffle plate;
6-differential pressure transmitter;
7-fluid path pipeline;
8-tipping bin flowmeter;
9-gas-liquid converges tank 901-air and liquid mixer;
10-gas circuit metered flow meter;
11-gas circuit house steward;
12-blow-off line and blowoff valve;
13-base plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical solution of the present invention is further described again:
As shown in Figure 1, low consumption of the liquid, atm number oil well three phase metering device in one, comprise gas-liquid cyclone separator 2, flow straightener 4, gas circuit surge tank 5, tipping bin flowmeter 8(application number: 201110321654.0), gas flowmeter 10, gas-liquid converge tank 9, differential pressure transmitter 6, gas circuit house steward 11, medium inlet pipeline 1, overflow pipe 3, fluid path pipeline 7 and base plate 13.Whole device is located on base 13.
The major function of gas-liquid cyclone separator 2 has been gas-liquid rotational flow separation, baffling mask work that oil well carrys out liquid.Gas-liquid cyclone separator 2 shell is vertical cylinder body, housing sidepiece connecting media inlet duct 1, bottom is connected with overflow pipe 3, and end is connected with blow-off line and blowoff valve 12, and gas-liquid cyclone separator 2 inwall is equipped with and is connected two spirality separation assemblies 201 with housing; There is the secondary liquid separatnig plate 203 with the pyramidal structure of housing tube connector mouth down conical surface gas-liquid separation baffle plate 202, two spirality separation assembly 201 upper end being equipped with mouth of pipe pyramidal structure down between two spirality separation assemblies 201.
The major function of flow straightener 4 realizes gas-liquid to cushion current stabilization, complete oil-water-gas Gravity Separation, carries out current stabilization simultaneously, be convenient to the accurate measurement of differential pressure transmitter 6 at flow straightener 4 port of export.Flow straightener 4 shell is vertical cylinder body, and top is communicated with gas circuit surge tank 5, and upper lateral part is communicated with tipping bin flowmeter 8, and following side is connected with gas-liquid cyclone separator 2 by overflow pipe 3, and bottom connects blow-off line and blowoff valve 12; Enclosure interior is provided with overflow pipe 3 upward and gas-liquid isolating cylinder 403, overflow pipe 3 top fixed weir mouth 401, overfall 401 upper end is provided with overfall baffle plate 402, overflow pipe 3 middle and upper part is fixed umbrella-type profit and is divided gas division board 404, differential pressure transmitter 6 is installed in gas-liquid isolating cylinder 403 side, and differential pressure transmitter 6 upper end is connected with tipping bin flowmeter 8 by fluid path pipeline 7.
The major function of gas circuit surge tank 5 realizes to be separated by the further baffling of the isolated oil gas of gas-liquid cyclone separator 2.Gas circuit surge tank 5 housing is horizontal cylinder body, and gas circuit surge tank 5 entrance point is provided with spherical baffle plate 501, and middle part is provided with liquid baffle plate 502; Cylindrical shell one end is communicated with gas-liquid cyclone separator 2, and the other end connects the import of gas circuit metered flow meter 10;
The major function that gas-liquid converges tank 9 is mixed the gas after measuring, liquid.The housing that gas-liquid converges tank 9 is horizontal cylinder body, and inside is provided with air and liquid mixer 901, and top connects tipping bin flowmeter 8 and exports, and gas circuit house steward 11 one end and gas-liquid are converged tank 9 import and be connected, and gas circuit house steward 11 other end exports with gas circuit metered flow meter 10 and is connected;
It is vertical cylinder body gas-liquid cyclone separator 2 that measured medium enters a shell be made up of spirality separation assembly 201, upper conical gas-liquid separation baffle plate 202 and inferior pyramidal secondary liquid separatnig plate 203 from medium inlet pipeline 1, gas-liquid oil well being carried out to liquid enters spirality separation assembly 201, utilize the drop that centrifugal force comes in separation bubble, realize centrifugation; Running into gas-liquid separation baffle plate 202 containing liquid gas and stop with secondary liquid separatnig plate 203 after centrifugation, gas is understood baffling and walks, and liquid is due to inertia, continue there is a speed forward, liquid is forward attached to gas-liquid separation baffle plate 202 and the effect due to gravity on secondary liquid separatnig plate 203 wall and pools together downwards and realize baffling and be separated.Gas after separation enters gas-liquid along the gas circuit house steward 11 that housing upper connects and converges tank 9 after the metering of gas circuit metered flow meter 10, and the liquid after separation is flowed into the tank interior of flow straightener 4 by overfall 401 along lower housing portion fluid path overflow pipe 3; When in flow straightener 4, suffered by drop, gravity is greater than the buoyancy of its gas, drop will settle from gas phase, thus realize Gravity Separation, gas division board 404 is divided to carry out fluidised form adjustment to the oil gas water of overflow by profit, reach steady flow result, and again residual gas in liquid is separated, to meet the measurement requirement of its rear end differential pressure transmitter 6.After gas separaion, wet oil enters liquid isolating cylinder 403.Smoothly pass differential pressure transmitter 6 through the wet oil of current stabilization again and carry out measurement of water ratio, the rear wet oil of measurement enters tipping bin flowmeter 8 through fluid path pipeline 7 and carries out flow measurement, after metering, wet oil remittance gas-liquid converges tank 9, by outlet is exported after being mixed by air and liquid mixer 901.By gas circuit surge tank 5, gas-liquid cyclone separator 2, flow straightener 4, tipping bin flowmeter 8 inside are communicated with, realize inside liquid level self-balancing, do not need machine driving or attachedly help control, make to bring about the desired sensation, liquid can from import to output flow, the reliability of increase equipment, thus decrease fault rate.
Claims (1)
1. a low consumption of the liquid, atm number oil well three phase metering device, comprise gas-liquid cyclone separator (2), flow straightener (4), gas circuit surge tank (5), differential pressure transmitter (6), gas-liquid converge tank (9) and base plate (13), whole device is seated on base plate (13), it is characterized in that:
Gas-liquid cyclone separator (2) shell is vertical cylinder body, cylindrical shell sidepiece connecting media inlet duct (1), bottom is connected with overflow pipe (3), barrel tip is connected with blow-off line and blowoff valve (12), gas-liquid cyclone separator (2) inwall is equipped with and is connected two spirality separation assemblies (201) with housing, be equipped with the conical surface gas-liquid separation baffle plate (202) of mouth of pipe pyramidal structure down between two spirality separation assemblies (201), there is the secondary air dividing plate (203) with the pyramidal structure of housing tube connector mouth down two spirality separation assembly (201) upper ends;
Flow straightener (4) shell is vertical cylinder body, top is communicated with gas circuit surge tank (5), upper lateral part is communicated with tipping bin flowmeter (8), and following side is connected with gas-liquid cyclone separator (2) by overflow pipe (3), and bottom connects blow-off line and blowoff valve (12); Enclosure interior is provided with overflow pipe (3) upward and gas-liquid isolating cylinder (403), overflow pipe (3) top is provided with overfall (401), there is stationary housing overflow head piece baffle plate (402) overfall (401) upper end, middle and upper part, overflow pipe (3) outside is fixed umbrella-type profit and is divided gas division board (404), differential pressure transmitter (6) is installed in gas-liquid isolating cylinder (403) side, and differential pressure transmitter (6) upper end is connected with tipping bin flowmeter (8) by fluid path pipeline (7);
Gas circuit surge tank (5) housing is horizontal cylinder body, and gas circuit surge tank (5) entrance point is provided with spherical baffle plate (501), and middle part is provided with liquid baffle plate (502); Cylindrical shell one end is communicated with gas-liquid cyclone separator (2), and the other end connects meter (10) import of gas circuit metered flow;
The housing that gas-liquid converges tank (9) is horizontal cylinder body, inside is provided with air and liquid mixer (901), top connects tipping bin flowmeter (8) outlet, gas circuit house steward (11) one end and gas-liquid are converged tank (9) import and are connected, and gas circuit house steward (11) other end exports with gas circuit metered flow meter (10) and is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410141542.0A CN103982170B (en) | 2014-04-10 | 2014-04-10 | Middle low consumption of the liquid, atm number oil well three phase metering device |
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| CN201410141542.0A CN103982170B (en) | 2014-04-10 | 2014-04-10 | Middle low consumption of the liquid, atm number oil well three phase metering device |
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| CN103982170B true CN103982170B (en) | 2016-04-13 |
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| CN105626034B (en) * | 2014-11-07 | 2023-07-04 | 中国石油化工股份有限公司 | Automatic metering device for oil well gas production |
| CN104763404B (en) * | 2015-03-26 | 2017-10-03 | 西安长庆科技工程有限责任公司 | A kind of oil well tipping bucket measurement integrated device |
| CN104989371A (en) * | 2015-06-26 | 2015-10-21 | 中国石油化工股份有限公司胜利油田分公司 | Online water content analyzing device for oil well mouth |
| CN105178936B (en) * | 2015-10-22 | 2017-12-15 | 锦州锦研科技有限责任公司 | The aqueous On-line Measuring Method of oil well single-well crude oil and device are realized using gas-liquid separation |
| CN105804720A (en) * | 2016-04-29 | 2016-07-27 | 山东方锐智能科技有限公司 | Dual-body type oil-well three-phase automatic metering device |
| CN109453558A (en) * | 2017-09-06 | 2019-03-12 | 宝山钢铁股份有限公司 | A kind of filtering sweeping control equipment of waste emulsion liquid processing system |
| CN110965986B (en) * | 2019-11-01 | 2023-10-31 | 南京瑞路通达信息技术有限公司 | Measuring device and method for three-phase flow of produced liquid of oilfield production well |
| CN110905481A (en) * | 2019-12-23 | 2020-03-24 | 西安长庆科技工程有限责任公司 | Mobile single-well multiphase metering integrated device and metering method |
| CN113953103B (en) * | 2021-09-29 | 2022-11-18 | 华南理工大学 | Compact gas-liquid cyclone multistage separator |
| CN115197744B (en) * | 2022-06-28 | 2023-09-19 | 中国矿业大学 | System for removing water and sand scraps from ground thickened oil and oil-water separation method thereof |
| CN115540959B (en) * | 2022-10-21 | 2023-09-15 | 成都洋湃科技有限公司 | Mixed phase flow measurement method based on liquid-solid two-phase pressure taking and mixed phase flowmeter |
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