CN204034500U - A kind of gas-liquid test separator - Google Patents
A kind of gas-liquid test separator Download PDFInfo
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- CN204034500U CN204034500U CN201420502649.9U CN201420502649U CN204034500U CN 204034500 U CN204034500 U CN 204034500U CN 201420502649 U CN201420502649 U CN 201420502649U CN 204034500 U CN204034500 U CN 204034500U
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Abstract
The utility model discloses a kind of gas-liquid test separator, for solving separator in well station discharge opeing automated system power shortage source, remote mountain areas (power supply, source of the gas), solving the problem of liquid entrainment sand grains after being separated simultaneously.The utility model comprises horizontal type shell, and the upside of one end of horizontal type shell is provided with gas-liquid import, and gas-liquid inlet communication has energy dissipating water conservancy diversion just separating device; Horizontal type shell near gas-liquid entrance point is provided with draws sand mouth; The upside of the horizontal type shell other end is equipped with gas outlet, and the horizontal type shell near gas outlet end is equipped with automatic draining device, and the bottom in horizontal type shell is provided with sand block weir plate, and sand block weir plate is arranged in the horizontal type shell between gas-liquid import and automatic draining device.The utility model has gas-liquid separation, sand setting desanding, automatic steady continuous draining function, technological process is simplified, compact conformation, is beneficial to station field device integration, skid; The construction at the unmanned well station on duty of oil gas field is conducive to without the need to electric power, source of the gas.
Description
Technical field
The utility model belongs to oil gas field gas-liquid separation equipment, is specifically related to a kind of gas-liquid test separator for carrying out gas-liquid separation to the oil gas of earth station field, can isolate the sand grains (and other solid impurities) carried secretly in liquid phase simultaneously; The utility model is also applicable to the gas-liquid separation of other field.
Background technology
Test separator is mainly used in oil gas field, and the gas-liquid mixture exploiting out by individual well is separated, and the gas after separation, liquid measure respectively, and then is passed to centralized treatment plant outside mixing.In technological process, test separator belongs to the separation equipment of metering front end, because medium is direct mixture out inside well, complicated component, and the solid impurities such as entrained sand particle, mechanical admixture often brings fatal fault to metering precision apparatus, therefore requires that test separator is very high to mechanical admixture removal rate.
Such as application number be 200520079441.1 utility model patent disclose a kind of air floating flushing type active sand continuous automatic filter, adopt horizontal type shell structure, be provided with successively in housing eddy flow in advance de-device device, butterfly steering gear, gas evolution plate, multilayer deflection plate, droplet coalescer, rectifier, demister, liquid barrier, minim pipette and on housing, be provided with mixture intake adapter, anti-whirlpool element, liquid outlet are taken over, and are provided with gas outlet adapter at demister top; Eddy flow pre-degasser and housing upper outer wall affixed, sidewall is provided with mixture intake adapter, top was connected with demister by communicating pipe, baffle circle is set above eddy flow pre-degasser and angled with wall, baffle circle bores multiple circular hole along surrounding near wall place, baffle circle top is provided with droplet coalescence filler and catches drop, eddy flow pre-degasser top is provided with escape pipe, lower interior portion is provided with umbrella shape catheter and is connected with conduit and stretches in housing, and relative with the dish-shaped steering gear on affixed gas evolution plate; Gas evolution plate is placed in housing, and forms an angle with axis, and gas evolution plate is made up of hang plate and liquid barrier, is welded with current stabilization blend stop thereon; Rectifier is placed in housing, with housing axis perpendicular, in vertical structure, and the runner of rectifier and housing axis perpendicular; Be connected with demister at equipment upper end housing exterior walls, it is communicated with in housing by through hole, is provided with gas outlet adapter at its top; In shell structure, mixture intake adapter top is provided with multilayer deflection plate, and bottom is provided with liquid barrier.
The utility model patent being 201420151131.5 as application number discloses a kind of natural gas horizontal type gas and liquid separator, comprise the horizontal tank body be located on saddle, air admission hole is provided with on the upside of one end of horizontal tank body, reflecting plate is provided with in horizontal tank body, cylindrical shape gas collection bag is formed on the upside of the other end of horizontal tank body, the gas outlet, upper end of gas collection bag is provided with removable leaf grating resolution element, hydrops storehouse is formed on the downside of the middle part of horizontal tank body, silk screen separator is also provided with in gas collection bag, this silk screen separator is positioned at below described leaf grating resolution element, this silk screen separator comprises two annular orifice plates, two annular orifice plates are laid with multiple hollow hole, two annular orifice plates are fixedly connected with by a central tube, this central tube periphery is reeled by stainless steel cloth and forms stainless steel wire reel, this stainless steel wire outside barrel diameter is greater than the circumscribed circle diameter of hollow hole on described annular orifice plate, the drainpipe that leaf grating resolution element is provided with is through described central tube, stainless steel cloth is twill braided steel wire net, the order number of stainless steel cloth is 40 ~ 100 orders, reflecting plate is tilt obliquely, 12 ~ 18 °, its angle of inclination, and the lower end of reflecting plate is provided with one end of air admission hole towards described horizontal tank body, drainpipe lower end head is tip shape.
But existing horizontal type gas and liquid separator also exists following problem:
1, gas-liquid mixture enters in separator and is separated, the solid sundries such as sand grains are mingled with in liquid after separation, the solid sundries such as sand grains enter and are disposed in valve member on separator and flowermeter, cause valve member and flowermeter wearing and tearing, jam, occur opening fitting badly, the problem that metering is inaccurate.
2, the draining mode of existing separator is generally select liquid level signal pick device (comprising float signaling switch)+motor-operated control valve or pneumatic control valve to realize automatic liquid-drainage function.But existing structural design: one is make flow process complicated; Two is that most of oil gas field is positioned at remote districts, power conditions and personnel's living condition extreme difference, realizes unregulated power exploitation, unmanned brings great difficulty to such area.
Utility model content
The utility model is in order to solve existing test separator because there is the solid sundries such as sand grains and the valve member that causes and flowermeter wearing and tearing in the liquid after being separated, jam, occur opening fitting badly, the problem that metering is inaccurate, solve existing test separator simultaneously and can not be applicable to unregulated power exploitation and even unmanned well station problem, and provide one to carry desanding function, carry the horizontal type gas and liquid test separator of built-in liquid level equilibrium draining function, there is gas-liquid separation, sand setting, desanding, automatic steady continuous draining function, oil/gas field station technological process is simplified, compact conformation, be conducive to oil/gas field station apparatus integration, skid, without the need to arranging electric power, air supply system, be beneficial to the construction at the unmanned well station on duty of oil gas field.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of gas-liquid test separator, comprise horizontal type shell, the upside of one end of described horizontal type shell is provided with gas-liquid import, and described gas-liquid inlet communication has energy dissipating water conservancy diversion just separating device; Horizontal type shell near gas-liquid entrance point is provided with draws sand mouth; The upside of the described horizontal type shell other end is equipped with gas outlet, horizontal type shell near gas outlet end is equipped with automatic draining device, it is characterized in that, bottom in described horizontal type shell is provided with sand block weir plate, and described sand block weir plate is arranged in the horizontal type shell between gas-liquid import and automatic draining device.
Described horizontal type shell is equipped for rinsing sand block weir plate and drawing the water filling sand flushing nozzle of the sand grains deposited between sand mouth.
The bottom of described horizontal type shell offers sand removing hole, and described sand removing hole is opened in sand block weir plate and draws on the horizontal type shell between sand mouth.
Described energy dissipating water conservancy diversion just separating device comprises side plate and first momentum absorbing curtain, and side plate, first momentum absorbing curtain and horizontal type shell inwall form the first subchannel with gas-liquid inlet communication.
Be provided with dispersion water conservancy diversion damping element in described just subchannel, described dispersion water conservancy diversion damping element is angle steel, steel pipe or damping vane.
Described gas outlet is equipped with wire-mesh mist extractor.
The upside of described horizontal type shell is equipped with Pressure gauge ozzle.
Compared with prior art, the utility model has following beneficial effect:
Gas-liquid test separator of the present utility model, comprises horizontal type shell, and the upside of one end of horizontal type shell is provided with gas-liquid import, and gas-liquid inlet communication has energy dissipating water conservancy diversion just separating device; Horizontal type shell near gas-liquid entrance point is provided with draws sand mouth; The upside of the horizontal type shell other end is equipped with gas outlet, and the horizontal type shell near gas outlet end is equipped with automatic draining device; Bottom in horizontal type shell is provided with sand block weir plate, and sand block weir plate is arranged in the horizontal type shell between gas-liquid import and automatic draining device.The course of work of the present utility model is: the mixture being mingled with the solid sundries such as sand grains enters horizontal type shell, gas-liquid initial gross separation is carried out under the effect of the first separating device of energy dissipating water conservancy diversion, under gravity, gas is carried liquid pearl secretly and is flowed to Way out in upper space level, this process is also the process that the continuous sedimentation of liquid pearl drops to bottom liquid phases, gas is carried secretly and is failed the mist pearl of sedimentation, by wire-mesh mist extractor, mist pearl gear is obtained, assembles, dropped among container bottom liquid, gas is discharged through gas outlet; Meanwhile, liquid entrainment bubble and the sand grains of bottom flow to leakage fluid dram direction, this process is also that bubble constantly rises and breaks through liquid level and be dissolved among gas phase, sand grains sinks to being deposited in the process of bottom, the effect of sand block weir plate prevents sand grains from continuing to be brought into leakage fluid dram with liquid flow is unlikely, before sand grains being blocked in sand block weir plate; Liquid will be crossed sand block weir plate and discharge horizontal type shell by automatic draining device; Thus realize gas-liquid separation, and the solid sundries such as sand grains in removing liquid phase, preventing from causing because there is the solid sundries such as sand grains in liquid valve member and flowermeter wearing and tearing, jam, occurring opening and fit badly, measure inaccurate problem.
Automatic draining device is equipped in horizontal type shell of the present utility model, realize the automatic discharge of liquid phase, do not need to provide power supply or source of the gas equal power device to realize the discharge of liquid phase, be specially adapted to remote regional unregulated power exploitation, unattended oil gas field.The setting of the utility model automatic draining device simultaneously, simplify technological process and simplify, compact conformation, is conducive to oil/gas field station apparatus integration, skid; Without the need to arranging electric power, air supply system, be beneficial to the construction at the unmanned well station on duty of oil gas field.
The utility model horizontal type shell is equipped for rinsing sand block weir plate and drawing the water filling sand flushing nozzle of the sand grains deposited between sand mouth; Being convenient to discharge the solid sundries such as the sand grains of lamination in horizontal type shell by arranging water filling sand flushing nozzle, being convenient to the care and maintenance of device.
The bottom of horizontal type shell offers sand removing hole, and sand removing hole is opened in sand block weir plate and draws on the horizontal type shell between sand mouth, and the regular discharge of the solid sundries such as the sand grains by being deposited in bottom is convenient in the setting of sand removing hole, improves Practical Performance of the present utility model.
Gas outlet of the present utility model is equipped with wire-mesh mist extractor, can remove fog in gas by wire-mesh mist extractor, thus improves the quality being separated rear gas, is convenient to the carrying out of finishing operations.
The upside of horizontal type shell is equipped with Pressure gauge ozzle, utilizes pressure gauge to detect the air pressure in horizontal type shell by Pressure gauge ozzle, is convenient to staff and carries out operating and controlling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the structural representation of the first separating device of the utility model dispersion water conservancy diversion and gas-liquid inlet communication;
Fig. 3 is the structural representation of the automatic draining device that the utility model is selected;
Fig. 4 is the structural representation of the float that the utility model is selected;
Mark in figure: 1, draw sand mouth, 2, horizontal type shell, 3, gas-liquid import, 4, energy dissipating water conservancy diversion is separating device just, 5, water filling sand flushing nozzle, 6, Pressure gauge ozzle, 7, gas outlet, 8, wire-mesh mist extractor, 9, saddle, 10, automatic draining device, 11, sand block weir plate, 12, sand removing hole, 13, fast opening blind, 14, dispersion water conservancy diversion damping element, 15, first subchannel, 16, side plate, 17, first momentum absorbing curtain, 18, float, 19, fluid collection chamber, 20, sewage draining exit, 21, valve member, 22, leakage fluid dram, 23, float housing, 24, cross over pipe, 25, pneumostome, 26, bathing cap, 27, tap hole, 28, connector.
Detailed description of the invention
Below in conjunction with embodiment, the utility model will be further described, and described embodiment is only the utility model part embodiment, is not whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art, not making other embodiments used obtained under creative work prerequisite, belongs to protection domain of the present utility model.
Gas-liquid test separator of the present utility model, comprises horizontal type shell 2, and the upside of one end of horizontal type shell 2 is provided with gas-liquid import 3, and gas-liquid import 3 is communicated with energy dissipating water conservancy diversion just separating device 4; Horizontal type shell 2 near gas-liquid import 3 end is provided with draws sand mouth 1, draws sand mouth 1 and is equipped with fast opening blind; The upside of horizontal type shell 2 other end is equipped with gas outlet 7, and the horizontal type shell 2 near gas outlet 7 end is equipped with automatic draining device 10; Bottom in horizontal type shell 2 is provided with sand block weir plate 11, and sand block weir plate 11 is arranged in the horizontal type shell 2 between gas-liquid import 3 and automatic draining device 10.
As a kind of preferred mode of the utility model, gas outlet of the present utility model is equipped with wire-mesh mist extractor, can remove fog in gas by wire-mesh mist extractor, thus improves the quality being separated rear gas, is convenient to the carrying out of finishing operations.
The course of work of the present utility model is, the mixture being mingled with the solid sundries such as sand grains enters horizontal type shell 2, gas-liquid initial gross separation is carried out under the effect of the first separating device 4 of energy dissipating water conservancy diversion, under gravity, gas is carried liquid pearl secretly and is flowed to Way out in upper space level, this process is also the process that the continuous sedimentation of liquid pearl drops to bottom liquid phases, gas is carried secretly and is failed the mist pearl of sedimentation, obtained by mist pearl shelves by wire-mesh mist extractor 8, assemble, drop among horizontal type shell bottom liquid, gas is discharged through gas outlet 7; Meanwhile, liquid entrainment bubble and the sand grains of bottom flow to leakage fluid dram direction, this process is also that bubble constantly rises and breaks through liquid level and be dissolved among gas phase, sand grains sinks to being deposited in the process of bottom, the effect of sand block weir plate 11 prevents sand grains from continuing to be brought into outlet with liquid flow is unlikely, before sand grains being blocked in sand block weir plate 11; Liquid will be crossed sand block weir plate 11 and discharge horizontal type shell 2 by automatic draining device 10; Thus realize gas-liquid separation, and the separation of the solid sundries such as sand grains in removing liquid phase, prevent in liquid and cause valve member and flowermeter wearing and tearing, jam because there is the solid sundries such as sand grains, occur opening and fit badly, measure inaccurate problem.
Automatic draining device is equipped in horizontal type shell 2 of the present utility model, realize the automatic discharge of liquid phase, do not need to provide power supply or source of the gas equal power device to realize the discharge of liquid phase, be specially adapted to remote regional unregulated power exploitation, unattended oil gas field.The setting of the utility model automatic draining device simultaneously, simplify technological process and simplify, compact conformation, is conducive to oil/gas field station apparatus integration, skid; Without the need to arranging electric power, air supply system, be beneficial to the construction at the unmanned well station on duty of oil gas field.
The utility model horizontal type shell 2 is equipped for rinsing sand block weir plate 11 and drawing the water filling sand flushing nozzle 5 of the sand grains deposited between sand mouth 1; Being convenient to discharge the solid sundries such as the sand grains of lamination in horizontal type shell 2 by arranging water filling sand flushing nozzle 5, being convenient to the care and maintenance of device.
As a kind of preferred mode of the utility model, the bottom of horizontal type shell 2 offers sand removing hole 12, sand removing hole 12 is opened in sand block weir plate 11 and draws on the horizontal type shell 2 between sand mouth 1, the discharge of the solid sundries such as the sand grains of lamination is convenient in the setting of sand removing hole 15, improves Practical Performance of the present utility model.
For the ease of measuring the air pressure in horizontal type shell 2, horizontal type shell 2 being provided with Pressure gauge ozzle 6, utilizing pressure gauge to detect the air pressure in horizontal type shell by Pressure gauge ozzle 6, being convenient to staff and carrying out operating and controlling.
Embodiment one
Composition graphs 1, the gas-liquid test separator of the present embodiment, comprises horizontal type shell, and the upside of one end of horizontal type shell is provided with gas-liquid import, and gas-liquid inlet communication has energy dissipating water conservancy diversion just separating device; Horizontal type shell near gas-liquid entrance point is provided with draws sand mouth, draws sand mouth and is equipped with fast opening blind; The upside of the horizontal type shell other end is equipped with gas outlet, and the horizontal type shell near gas outlet end is equipped with automatic draining device, and the bottom in horizontal type shell is provided with sand block weir plate, and sand block weir plate is arranged in the horizontal type shell between gas-liquid import and automatic draining device.
Embodiment two
The present embodiment, on the basis of embodiment one, is equipped with wire-mesh mist extractor 8 in gas outlet 7, for carrying out demist process to gas, can remove fog in gas by wire-mesh mist extractor 8, thus improves the quality being separated rear gas, is convenient to the carrying out of finishing operations.
Embodiment three
The present embodiment is on the basis of embodiment two, be equipped for rinsing sand block weir plate 11 and drawing the water filling sand flushing nozzle 5 of the sand grains deposited between sand mouth 1 at horizontal type shell 2, being convenient to discharge the solid sundries such as the sand grains of lamination in horizontal type shell 5 by arranging water filling sand flushing nozzle 5, being convenient to the care and maintenance of device.
Embodiment four
The present embodiment is on the basis of embodiment three, sand removing hole 12 is offered in the bottom of horizontal type shell 2, sand removing hole 12 is opened in sand block weir plate 11 and draws on the horizontal type shell 2 between sand mouth 1, the regular discharge of the solid sundries such as the sand grains by being deposited in bottom is convenient in the setting of sand removing hole 12, improves Practical Performance of the present utility model.
Embodiment five
Composition graphs 2, the present embodiment is on the basis of embodiment four, description has further been carried out to the first separating device 4 of energy dissipating water conservancy diversion, energy dissipating water conservancy diversion just separating device 4 comprises side plate 16 and first momentum absorbing curtain 17, and side plate 16, first momentum absorbing curtain 17 form with horizontal type shell 2 inwall the first subchannel 15 be communicated with gas-liquid import 3; Dispersion water conservancy diversion damping element 14 is installed in first subchannel 15.By arranging energy dissipating water conservancy diversion just separating device 4 in gas-liquid import 3, the material momentum entered from gas-liquid import 3 is absorbed, and flow out along the Way out of dispersion water conservancy diversion damping element 14, be mingled with stock water in the gas flow, through the buffering of dispersion water conservancy diversion damping element, absorb the momentum of strand water, stock water becomes drop and flows into enclosure interior, the splashing that the first momentum baffle plate effectively decreasing existing separator produces, plume and the phenomenon of carrying secretly, thus improve gas-liquid separation efficiency.
Dispersion water conservancy diversion damping element 14 is angle steel, steel pipe or damping vane etc., and those skilled in the art can understand and understand, and does not repeat them here.
Embodiment six
Composition graphs 3, the present embodiment is on the basis of embodiment five, automatic draining device selects float-type automatic draining device, automatic draining device 10 comprises fluid collection chamber 19, and fluid collection chamber 19 is communicated with the bottom at horizontal type shell 2, and the inside of fluid collection chamber 19 is provided with chute, chute is equipped with the float 18 that can move up and down in chute, the lower end of float 18 is equipped with valve member 21, and described float 10 is for the aperture of by-pass valve control assembly 21 valve port, and valve member is provided with leakage fluid dram 22.Adopt buoyancy to drive, the aperture of control valve assembly valve port, realize the function of automatic liquid level control, steadily discharge opeing.
Valve member belongs to prior art, and those skilled in the art understands and understands, and does not repeat them here.
Embodiment seven
The present embodiment is on the basis of embodiment six, make further improvement, offering the sewage draining exit 20 for discharging the solid sundries in fluid collection chamber 19 in the bottom of fluid collection chamber 19, preventing the accumulation of solid sundries in fluid collection chamber, improving Practical Performance of the present utility model.
Embodiment eight
The present embodiment has made further instruction on the basis of embodiment seven, the float 18 of the present embodiment comprises float housing 23 and cross over pipe 24, the inside of float housing 23 is stretched in the lower end of cross over pipe 24, the upper end of cross over pipe 24 is positioned at the outside of float housing 23, the upper end of cross over pipe 24 is arranged with bathing cap 26, is formed with pneumostome 25 between bathing cap 26 and cross over pipe 24.Cross over pipe 24 can make the air pressure of float housing inside and outside be consistent, when not changing float thickness of shell (being namely still set to thinner by the wall thickness of float housing), realize the discharge of liquid in the gas-liquid sand separator of high pressure, reduce the cost produced and manufacture.
The bottom of float housing 23 is also connected with connector 28, to be interconnected to coordinate by connector 28 with valve member 21.
The buoyancy that float 18 can provide in equal geometric size situation can direct by-pass valve control assembly 21, thus decrease the control system arranged in existing test separation equipment, reduce production cost, improve the stability of equipment operation simultaneously when not consuming extra power (gas energy, electric energy), reducing the cost of plant maintenance.
The bottom of float housing 18 is provided with tap hole 27 simultaneously, and tap hole 27 is equipped with the bleeder valve for opening and closing tap hole 27.The setting of tap hole 27 can either add counterweight liquid by this tap hole 27 to float inside, the hydrops produced can be discharged again, improve Practical Performance of the present utility model under the lime set of float housing 23 inside or accident condition.Go for the adding of counterweight liquid the work condition environment under different air pressure, improve Practical Performance of the present utility model.
The buoyancy that float can provide in equal geometric size situation can the control of direct by-pass valve control assembly, thus decrease the control system arranged in existing gas-liquid separation equipment, reduce production cost, improve the stability of equipment operation simultaneously when not consuming extra power (gas energy, electric energy), reducing the cost of plant maintenance; Oil/gas field station technological process is simplified, compact conformation, be conducive to oil/gas field station apparatus integration, skid; Without the need to arranging electric power, air supply system, be beneficial to the construction at the unmanned well station on duty of oil gas field.
Claims (5)
1. a gas-liquid test separator, comprises horizontal type shell, and the upside of one end of described horizontal type shell is provided with gas-liquid import, and described gas-liquid inlet communication has energy dissipating water conservancy diversion just separating device; Horizontal type shell near gas-liquid entrance point is provided with draws sand mouth; The upside of the described horizontal type shell other end is equipped with gas outlet, horizontal type shell near gas outlet end is equipped with automatic draining device, it is characterized in that, bottom in described horizontal type shell is provided with sand block weir plate, and described sand block weir plate is arranged in the horizontal type shell between gas-liquid import and automatic draining device.
2. gas-liquid test separator according to claim 1, is characterized in that: described horizontal type shell is equipped for rinsing sand block weir plate and drawing the water filling sand flushing nozzle of the sand grains deposited between sand mouth.
3. gas-liquid test separator according to claim 2, is characterized in that: the bottom of described horizontal type shell offers sand removing hole, and described sand removing hole is opened in sand block weir plate and draws on the horizontal type shell between sand mouth.
4., according to the arbitrary described gas-liquid test separator of claim 1-3, it is characterized in that: described gas outlet is equipped with wire-mesh mist extractor.
5. gas-liquid test separator according to claim 4, is characterized in that: the upside of described horizontal type shell is equipped with Pressure gauge ozzle.
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| CN201420502649.9U CN204034500U (en) | 2014-09-02 | 2014-09-02 | A kind of gas-liquid test separator |
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| CN201420502649.9U CN204034500U (en) | 2014-09-02 | 2014-09-02 | A kind of gas-liquid test separator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578510A (en) * | 2019-09-11 | 2019-12-17 | 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 | three-phase separator system for gas well liquid drainage process and use method |
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2014
- 2014-09-02 CN CN201420502649.9U patent/CN204034500U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578510A (en) * | 2019-09-11 | 2019-12-17 | 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 | three-phase separator system for gas well liquid drainage process and use method |
| CN110578510B (en) * | 2019-09-11 | 2023-12-05 | 中国石油天然气集团有限公司 | Three-phase separator system for gas well drainage process and use method |
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