WO2021088828A1 - 一种co 2驱采出流体气液分离装置 - Google Patents

一种co 2驱采出流体气液分离装置 Download PDF

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Publication number
WO2021088828A1
WO2021088828A1 PCT/CN2020/126254 CN2020126254W WO2021088828A1 WO 2021088828 A1 WO2021088828 A1 WO 2021088828A1 CN 2020126254 W CN2020126254 W CN 2020126254W WO 2021088828 A1 WO2021088828 A1 WO 2021088828A1
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outlet pipe
liquid
valve
gas
pipe
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PCT/CN2020/126254
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English (en)
French (fr)
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胡其会
李玉星
刘翠伟
王武昌
孟令雅
王婧涵
马宏涛
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中国石油大学(华东)
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Priority to AU2020378113A priority Critical patent/AU2020378113B2/en
Publication of WO2021088828A1 publication Critical patent/WO2021088828A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
    • C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10—Feedstock materials
    • C10G2300/1033—Oil well production fluids

Definitions

  • the present disclosure belongs to the technical field of oil and gas separation equipment in an oil and gas gathering and transportation system, and specifically relates to a gas-liquid separation device for CO 2 flooding produced fluid.
  • the principle of CO 2 flooding is to inject CO 2 into the oil layer as an oil-displacing agent, and use it to reduce displacement resistance, reduce crude oil viscosity, promote crude oil volume expansion and miscibility effects to improve crude oil recovery.
  • the produced fluid of CO 2 flooding contains oil and associated gas.
  • Associated gas includes alkanes and CO 2 as well as a small amount of water.
  • the physical properties and rheological properties of dissolved gas crude oil are significantly different. And the rheology changes with the changes of temperature, pressure and other parameters, which brings great challenges to the existing oil and gas gathering and processing technology system.
  • foaming may occur due to the escape of CO 2 , resulting in separation difficulties and inaccurate measurement.
  • the existence of foam will squeeze the gas phase space of the three-phase separator and cause serious Affect the separation effect of oil, gas, and water, increase the separation time, and even cause tank failure.
  • the existing separators are not sufficient for the effective separation of gas-containing crude oil.
  • the present disclosure proposes a CO 2 flooding production fluid gas-liquid separation device.
  • the present disclosure aims to solve the technical problem that the existing separator is insufficient to effectively separate gas-containing crude oil.
  • the present disclosure adopts the following technical solutions:
  • a gas-liquid separation device for CO 2 flooding produced fluid comprising: a main separation module, the main separation module includes a casing, and the casing is sequentially provided with a rectifying member, a rotary defoaming slurry, and a cone from left to right.
  • Type defoaming board foam buffer chamber
  • the foam buffer chamber includes a defoaming net
  • the upper end of the defoaming net is provided with a liquid blocking net
  • the right side of the liquid blocking net is provided with a first air outlet pipe
  • the first outlet The air pipe is in communication with the mist catcher
  • the upper end of the mist catcher is provided with a second air guide tube
  • the lower end of the foam chamber is connected with the liquid outlet pipe
  • an anti-vortex plate is provided between the cone-shaped foam plate and the foam buffer chamber.
  • An oil outlet pipe is arranged at the lower end of the anti-vortex plate, and the liquid outlet pipe is in communication with the oil outlet pipe.
  • a pre-separation module includes a cylinder on the left side of the shell, the side of the cylinder is connected with an inlet pipe, and gas-containing crude oil enters the cylinder through the inlet pipe in a rotating state, and the upper end of the cylinder Connected with the second air outlet pipe, the second air outlet pipe communicates with the mist trap through the first air guide pipe, the inside of the cylinder body is provided with a liquid baffle near one end of the second air outlet pipe, and the lower end of the cylinder body is provided with a stopper. Rotating member, the lower end of the anti-rotating member is provided with a liquid distribution member.
  • the inlet pipe, the first air guide pipe, the liquid outlet pipe, the oil outlet pipe and the second air guide pipe are respectively provided with valves.
  • CO 2 flooding produced fluid gas-liquid separation device may also have the following additional technical features:
  • the valve includes a first valve, a second valve, a third valve, a fourth valve, and a fifth valve.
  • the first valve is located on the inlet pipe, and the second valve is located on the first air pipe.
  • the third valve is located on the oil outlet pipe, the fourth valve is located on the liquid outlet pipe, and the fifth valve is located on the second air pipe.
  • the liquid outlet pipe and the oil outlet pipe converge into a branch, and a vortex flowmeter is provided on the convergent branch.
  • an adsorption device, a fifth valve and a turbine flowmeter are sequentially arranged on the second air duct at the upper end of the mist trap.
  • the upper end of the rotary defoaming slurry is connected to a motor, and the motor is located on the top of the shell.
  • a pressure relief valve is also provided on the top of the housing.
  • a heating belt is provided at the lower end of the casing.
  • the defoaming net is located at the upper end of the foam buffer chamber.
  • the inlet pipe is cut obliquely into the side wall of the cylinder body to communicate with the cylinder body.
  • the cone-shaped defoaming plate is provided with a plurality of through holes arranged in a matrix.
  • the inlet pipe of the pre-separation module is connected with the cylinder obliquely and tangentially.
  • the tangential inlet has a rotating flow field that makes the fluid entering the separator cylinder rotate to generate a rotating flow field.
  • the gas phase moves toward the separator cylinder axis and rises to the second
  • the air outlet pipe is led out, and the liquid phase moves toward the vessel wall, forming a downward external swirling flow under the action of centrifugal force and gravity, which flows into the main separation module after being stopped by the rotation stop member, and then realizes the gas by rotating centrifugal force and rotating disturbance in the pre-separation module
  • the technical effect of preliminary and effective separation from the liquid, and the staggered arrangement of the liquid baffle in the cylinder can effectively block the upward movement of liquid droplets in the gas, but does not affect the gas flow.
  • the anti-rotation member can block the tangential movement of the fluid to stabilize the incoming flow.
  • the liquid distribution component can block the backflow of the fluid and reduce the kinetic energy of the fluid itself; the pre-separation module has the technical effect of initially effectively separating gas and crude oil.
  • the rectifying component further reduces the unstable flow of the fluid after entering the main separation module.
  • the conical defoaming paddle accelerates the separation of oil and gas, and the conical design effectively eliminates foam.
  • the small liquid droplets in the gas are separated by the liquid barrier network.
  • the anti-vortex plate makes the separated liquid phase flow out smoothly from the oil outlet pipe.
  • the temperature inside the separator is increased by the heating belt, the separation rate of the separator is accelerated , the solubility of CO 2 in the oil is reduced, and the separation efficiency is improved.
  • the separator shell is provided with a pressure relief valve to avoid excessive pressure in the separator and play a protective role, thereby realizing the effective separation of gas-containing crude oil and gas. This patent has the technical effect of sufficient gas-containing crude oil separation.
  • Fig. 1 is a schematic structural diagram of a gas-liquid separation device for CO 2 flooding produced fluid of the present disclosure.
  • azimuth or positional relationship is based on the azimuth or positional relationship shown in the drawings, and is only a relationship term determined to facilitate the description of the structural relationship of the components or elements in the present disclosure. Disclosure restrictions.
  • a gas-liquid separation device for CO 2 flooding produced fluid includes a main separation module.
  • the main separation module includes a housing 23.
  • the housing 23 is sequentially provided with rectifying members 11 from left to right.
  • the foam buffer chamber 26 includes a defoaming net 22, the upper end of the defoaming net 22 is provided with a liquid blocking net 18, the liquid blocking net 18
  • a first air outlet pipe 31 is provided on the right side, the first air outlet pipe 31 is connected to the mist trap 19, the upper end of the mist trap 19 is provided with a second air duct 32, and the lower end of the foam chamber is in communication with the liquid outlet pipe 21
  • An anti-vortex plate 28 is provided between the cone-shaped foam plate and the foam buffer chamber 26, and an oil outlet pipe 20 is provided at the lower end of the anti-vortex plate 28, and the liquid outlet pipe 21 is in communication with the oil outlet pipe 20.
  • a pre-separation module includes a cylinder 6 located on the left side of the housing 23, the side of the cylinder 6 is in communication with an inlet pipe 5, and gas-containing crude oil enters the cylinder 6 in a rotating state through the inlet pipe 5 ,
  • the upper end of the cylinder 6 is in communication with the second air outlet tube 8
  • the second air outlet tube 8 is in communication with the mist trap 19 through the first air guide tube 16
  • the inside of the cylinder 6 is located near one end of the second air outlet tube 8.
  • the inlet pipe 5, the first air guide pipe 16, the liquid outlet pipe 21, the oil outlet pipe 20, and the second air guide pipe 32 are respectively provided with valves.
  • the valve includes a first valve 1, a second valve 2, a third valve 3, a fourth valve 4, and a fifth valve 29.
  • the first valve 1 is located on the inlet pipe 5, and the second valve 2 is located on the first air duct. 16, the third valve 3 is located on the outlet pipe 20, the fourth valve 4 is located on the outlet pipe 21, and the fifth valve 29 is located on the second air duct 32.
  • the liquid outlet pipe 21 and the oil outlet pipe 20 converge into a branch, and a vortex flowmeter 24 is provided on the convergent branch.
  • the second air duct 32 at the upper end of the mist trap 19 is provided with an adsorption device 27, a fifth valve 29 and a turbine flowmeter 25 in sequence.
  • the upper end of the rotary defoaming slurry is connected to a motor 13 which is located on the top of the casing 23.
  • the top of the housing 23 is also provided with a pressure relief valve 15.
  • a heating belt 30 is provided at the lower end of the casing 23.
  • the defoaming net 22 is located at the upper end of the foam buffer chamber 26.
  • the inlet pipe 5 is diagonally cut into the side wall of the cylinder 6 to communicate with the cylinder 6.
  • a number of through holes arranged in a matrix are arranged on the cone-shaped defoaming plate.
  • the setting of the first valve 1 is used to control the opening and closing of the gas-containing crude oil entering the cylinder 6 from the inlet pipe 5, and the setting of the second valve 2 controls the convergence of the gas separated by the pre-separation module and the gas separated by the main separation module, and then They are gathered together in the mist catcher 19 to realize the removal of mist and the further separation of mist crude oil contained in the gas, which has the technical effect of ensuring effective separation.
  • the setting of the third valve 3 is used to control the opening and closing of the outlet pipe 20
  • the setting of the fourth valve 4 is used to control the opening and closing of the outlet pipe 21
  • the setting of the fifth valve 29 is used to control the opening and closing of the second air duct 32.
  • the opening and closing realizes that the gas adsorption device 27 leads to the turbine flowmeter 25.
  • the inlet pipe 5 is arranged to inject gas-containing crude oil into the cylinder 6.
  • the inlet pipe 5 is inclined and communicates with the inner wall of the cylinder 6 tangentially.
  • the inlet has a rotating flow field that causes the fluid entering the separator cylinder 6 to rotate.
  • the gas phase moves toward the axis of the separator cylinder 6 and rises to the second outlet pipe 8 to export.
  • the liquid phase moves toward the wall of the separator.
  • the downward external swirling flow is formed under the action of the rotation stop member 9 and then flows into the main separation module.
  • the pre-separation module achieves the technical effect of preliminary and effective separation of gas and liquid through rotating centrifugal force and rotating disturbance.
  • the gas in the oil-liquid gap is squeezed out, and the principle of gas rising and liquid falling is used to realize the gas leading from the upper end and the liquid leading from the lower end to be further separated, realizing the effect of preliminary effective separation of gas-bearing crude oil.
  • the upper end of the cylinder 6 is provided with a liquid baffle 7 which is arranged in a staggered arrangement, which can effectively block the upward movement of liquid droplets in the gas, but does not affect the gas flow, thereby ensuring that the centrifugal gas is The water vapor is blocked, so that the water vapor in the gas will be adsorbed on the baffle plate 7 when it encounters the barrier. Coupled with the staggered arrangement of the baffle plate 7, the water vapor export path is extended and the water vapor is changed back and forth during the export process.
  • the oil droplets in the gas are effectively separated, and then the oil droplets in the gas are further removed by the mist trap 19 through the first air duct 16 and further adsorbed by the adsorption device 27, thereby realizing the most effective separation of the oil droplets in the gas.
  • the anti-rotation member 9 can block the tangential movement of the fluid to stabilize the incoming flow and prevent the separated liquid from being re-entered into the gas phase, and cooperate with the centrifugal to achieve the maximum extrusion of the gas in the droplet, and the liquid distribution member 10 can block the fluid Reverse flow and reduce the kinetic energy of the fluid itself;
  • the pre-separation module has the technical effect of preliminary effective separation of gas and crude oil.
  • the rectifying component has the function of further reducing the unstable flow of the fluid after entering the main separation module.
  • the cone-hole defoaming paddle can accelerate the separation of oil and gas, and the cone-hole design can effectively eliminate foam.
  • the rotation drives the gas-containing crude oil to move from left to right, and continues to squeeze out the gas in the gas-containing crude oil through the stirring and beating of the slurry, so as to achieve the next step of continuous separation.
  • the liquid barrier net 18 has the function of separating small liquid droplets contained in the gas.
  • the conical defoaming plate 14 can separate the bubbles when the fluid impacts the conical defoaming plate 14, and on the other hand, it can defoam the holes during the bubble climbing process, causing the bubbles to burst.
  • the anti-vortex plate 28 makes the separated liquid phase flow out from the oil outlet pipe 20 smoothly.
  • the heating belt 30 increases the temperature in the separator, has the effect of accelerating the separation rate of the separator, reducing the solubility of CO 2 in the oil, and improving the separation efficiency.
  • the separator housing 23 is provided with a pressure relief valve 15, which can prevent excessive pressure in the separator and play a protective role.
  • the motor 13 is set to provide rotation power for the rotary defoaming slurry, and the vortex flowmeter 24 is used to detect the separation
  • the amount of oil and the setting of the foam buffer chamber 26 realize the treatment of the terminal foam.
  • the defoaming net 22 breaks the foam, and then the oil enters the foam buffer chamber 26 and is led out through the liquid outlet pipe 21 at the lower end.
  • the adsorption device 27 realizes the treatment of the gas
  • the second air duct 32 is used to connect the mist trap 19, the adsorption device 27 and the turbine flowmeter 25, and the turbine flowmeter 25 realizes the detection of the amount of separated gas.
  • An anti-vortex plate 28 is provided at the inlet of the oil outlet pipe 20 behind the conical defoaming plate 14 to prevent the generation of vortex.
  • a gas-phase turbine flowmeter 25 is installed behind the adsorption device 27, and a liquid-phase vortex flowmeter 24 is installed behind the oil outlet pipe 20 converging in one way to measure the separated gas-phase and liquid-phase flow rates.
  • This patent separates gas-containing crude oil through multi-stage, continuous and compound linkage, separates gas in gas-containing crude oil through two stages of centrifugal rotation and rotary defoaming slurry, and passes through baffle 7, mist trap 19, and adsorption device 27. Separate the oil droplets contained in the gas, through the cone-shaped defoaming plate, the defoaming net 22, and the liquid blocking net 18 to break through the bubbles in multiple stages, separate the oil droplets and the gas, and then realize the effective separation of gas-containing crude oil.
  • the oil outlet flows out, and the upper liquid phase and a small amount of bubbles cross the partition 17 of the foam buffer chamber 26, pass through the defoaming net 22, and flow into the foam buffer chamber 26. After staying for 20 minutes, open the fourth valve 4 and flow out through the liquid outlet pipe 21.
  • the oil outlet pipe 20 converges and flows to the vortex flowmeter 24 to measure the liquid phase flow.
  • the upper gas phase is separated by the liquid barrier net 18 to separate small droplets and then exported from the first air outlet pipe 31. After being converged with the second air guide pipe 32, it passes through the mist trap.
  • the device 19 then flows through the turbine flowmeter 25 to measure the gas flow.
  • the inlet pipe 5 of the pre-separation module and the cylinder 6 are connected obliquely and tangentially.
  • the tangential inlet has a rotating flow field that causes the fluid entering the separator cylinder 6 to rotate.
  • the gas phase moves toward the axis of the separator cylinder 6 and rises to
  • the second air outlet pipe 8 is led out, and the liquid phase moves toward the wall to form a downward external swirling flow under the action of centrifugal force and gravity.
  • the rotation stop member 9 can block the flow of the fluid.
  • the tangential movement stabilizes the incoming flow and prevents the separated liquid from being re-entered into the gas phase.
  • the liquid distribution member 10 can block the backflow of the fluid and reduce the kinetic energy of the fluid itself; the pre-separation module has the technical effect of initially effectively separating gas and crude oil.
  • the rectifying component further reduces the unstable flow of the fluid after entering the main separation module.
  • the cone-hole defoaming paddle accelerates the separation of oil and gas, and the cone-hole design effectively eliminates foam.
  • the small liquid droplets contained in the gas are separated by the liquid barrier net 18.
  • the use of the conical defoaming plate 14 on the one hand separates the bubbles when the fluid impacts the conical defoaming plate 14, and on the other hand, the defoaming holes cause the bubbles to burst when the bubbles climb.
  • the anti-vortex plate 28 makes the separated liquid phase flow out from the oil outlet pipe 20 smoothly.
  • the heating belt 30 increases the temperature in the separator, speeds up the separation rate of the separator, reduces the solubility of CO 2 in the oil, and improves the separation efficiency.
  • the separator housing 23 is provided with a pressure relief valve 15 to prevent excessive pressure in the separator and play a protective role, thereby realizing the effective separation of gas-containing crude oil and gas. This patent has the technical effect of sufficient gas-containing crude oil separation.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

一种CO 2驱采出流体气液分离装置，包括：主分离模块，主分离模块包括壳体(23)，壳体(23)内部从左到右依次设有整流构件(11)、旋转式消泡桨(12)、锥型消泡板(14)、泡沫缓冲室(26)；泡沫缓冲室(26)上端设有第一出气管(31)，第一出气管(31)与捕雾器(19)连通，泡沫缓冲室(26)下端与出液管(21)连通，锥型消泡板(14)与泡沫缓冲室(26)之间设有防涡板(28)，防涡板(28)下端设有出油管(20)，出液管(21)与出油管(20)连通；预分离模块包括位于壳体(23)左侧的筒体(6)，筒体(6)侧面与入口管(5)连通，含气原油通过所述入口管(5)呈旋转状态进入筒体(6)内，筒体(6)的上端与第二出气管(8)连通，筒体(6)内部靠近第二出气管(8)一端设有挡液板(7)，筒体(6)的下端设有止旋构件(9)，止旋构件(9)下端设有布液构件(10)，具有使含气原油有效分离的优点。

Description

一种CO 2驱采出流体气液分离装置 技术领域
本公开属于油气集输系统中的油气分离设备技术领域，具体涉及一种CO 2驱采出流体气液分离装置。
背景技术
本部分的陈述仅仅是提供了与本公开相关的背景技术信息，不必然构成在先技术。
CO 2驱油的原理是将CO 2注入油层以其作为驱油剂，利用其减少驱替阻力、降低原油黏度、促进原油体积膨胀和混相效应等来提高原油采收率。CO 2驱油的采出流体中含有油、伴生气，伴生气包括烷烃和CO 2等，还有少量水，相比脱气原油，溶气原油的物性及流变性等明显不同，且其物性及流变性随温度、压力等参数的变化而变化，这都对现有油气集输与处理工艺系统带来了极大挑战。
CO 2驱采出原油在计量、分离及输送过程中可能会出现由于CO 2逸出而发泡的现象，导致分离困难，计量不准，泡沫的存在会挤占三相分离器的气相空间，严重影响油、气、水的分离效果，增加了分离时间，甚至发生冒罐。
现有分离器不足以满足对含气原油的有效分离。
因此，有必要提出一种用于CO 2驱原油气液分离的装置，以解决现有技术中的问题。
发明内容
本公开为了解决上述问题，提出了一种CO 2驱采出流体气液分离装置，本公开为了解决现有的分离器不足以满足对含气原油有效分离的技术问题。
根据一些实施例，本公开采用如下技术方案：
一种CO 2驱采出流体气液分离装置，包括：主分离模块，所述主分离模块包括壳体，所述壳体内部从左到右依次设有整流构件、旋转式消泡浆、锥型消泡板、泡沫缓冲室；所述泡沫缓冲室包括消泡网，所述消泡网上端设有阻液网，所述阻液网右侧设有第一出气管，所述第一出气管与捕雾器连通，所述捕雾器上端设有第二导气管，所述泡沫室下端与出液管连通，所述锥型泡沫板与泡沫缓冲室之间设有防涡板，所述防涡板下端设有出油管，所述出液管与出油管连 通。
预分离模块,所述预分离模块包括位于壳体左侧的筒体，所述筒体侧面与入口管连通，含气原油通过所述入口管呈旋转状态进入筒体内，所述筒体的上端与第二出气管连通，所述第二出气管通过第一导气管与捕雾器连通，所述筒体内部靠近第二出气管一端设有挡液板，所述筒体的下端设有止旋构件，所述止旋构件下端设有布液构件。
所述入口管、第一导气管、出液管、出油管、第二导气管上分别设有阀门。
另外，根据本公开实施例的CO 2驱采出流体气液分离装置还可以具有以下附加技术特征：
优选的，所述阀门包括第一阀门、第二阀门、第三阀门、第四阀门、第五阀门，所述第一阀门位于入口管上，所述第二阀门位于第一导气管上，所述第三阀门位于出油管上，所述第四阀门位于出液管上，所述第五阀门位于第二导气管上。
优选的，所述出液管和出油管汇聚成一条支路，汇聚成的一条支路上设有涡街流量计。
优选的，所述捕雾器上端的第二导气管上依次设有吸附装置、第五阀门和涡轮流量计。
优选的，所述旋转式消泡浆上端与电机相连，所述电机位于壳体顶部。
优选的，所述壳体顶部还设有泄压阀。
优选的，所述壳体下端设有加热带。
优选的，所述消泡网位于泡沫缓冲室的上端。
优选的，所述入口管倾斜切入筒体的侧壁与筒体连通。
优选的，所述锥型消泡板上设有呈矩阵排列的若干通孔。
与现有技术相比，本公开的有益效果为：
本公开通过预分离模块入口管和筒体倾斜相切连通，切向入口具有使进入分离器筒体的流体旋转产生旋转流场，气相向分离器筒体轴心运动，并上升旋至第二出气管导出，液相向器壁运动，在离心力和重力作用下形成向下的外旋流，经止旋构件止旋后流入主分离模块，进而在预分离模块通过旋转离心力及旋转扰动实现气体与液体初步有效分离的技术效果，且筒体内挡液板交错排列 可有效阻挡气中的液滴向上运动，但不影响气相流动，止旋构件可阻断流体的切向运动以稳定来流和防止分离出的液体重新卷入气相中，布液构件可阻挡流体逆流和减少流体自身的动能；预分离模块具有初步有效分离气和原油的技术效果。再通过整流部件进一步减少流体进入主分离模块后的不稳定流动。通过锥孔式消泡桨既加速油气分离，且锥孔式设计有效的消除泡沫。通过阻液网分离气中带有的小液滴。采用锥形消泡板一方面在流体冲击锥形消泡板时将气泡分离出来，另一方面在气泡爬升的过程中消泡孔，使气泡破裂。防涡板使分离出液相平稳地从出油管流出。通过加热带增加分离器内温度，加快分离器的分离速率，减少CO 2在油中的溶解度，提升分离效率。通过分离器壳体设有泄压阀，避免分离器内压力过高，起到保护作用，进而实现对含气原油油和气的有效分离，本专利具有含气原油分离充分的技术效果。
附图说明
构成本公开的一部分的说明书附图用来提供对本公开的进一步理解，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。
图1是本公开的CO 2驱采出流体气液分离装置的结构示意图。
附图标记说明：
在图1中，第一阀门1；第二阀门2；第三阀门3；第四阀门4；入口管5；筒体6；挡液板7；第二出气管8；止旋构件9；布液构件10；整流构件11；旋转式消泡桨12；电机13；锥形消泡板14；泄压阀15；第一导气管16；隔板17；阻液网18；捕雾器19；出油管20；出液管21；消泡网22；壳体23；涡街流量计24；涡轮流量计25；泡沫缓冲室26；吸附装置27；防涡板28；第五阀门29；加热带30；第一出气管31；第二导气管32。
具体实施方式：
下面结合附图与实施例对本公开作进一步说明。
应该指出，以下详细说明都是例示性的，旨在对本公开提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本公开所属技术领域的 普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本公开的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
在本公开中，术语如“上”、“下”、“左”、“右”、“前”、“后”、“竖直”、“水平”、“侧”、“底”等指示的方位或位置关系为基于附图所示的方位或位置关系，只是为了便于叙述本公开各部件或元件结构关系而确定的关系词，并非特指本公开中任一部件或元件，不能理解为对本公开的限制。
本公开中，术语如“固接”、“相连”、“连接”等应做广义理解，表示可以是固定连接，也可以是一体地连接或可拆卸连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的相关科研或技术人员，可以根据具体情况确定上述术语在本公开中的具体含义，不能理解为对本公开的限制。
如图1所示，一种CO 2驱采出流体气液分离装置，包括主分离模块，所述主分离模块包括壳体23，所述壳体23内部从左到右依次设有整流构件11、旋转式消泡浆、锥型消泡板、泡沫缓冲室26；所述泡沫缓冲室26包括消泡网22，所述消泡网22上端设有阻液网18，所述阻液网18右侧设有第一出气管31，所述第一出气管31与捕雾器19连通，所述捕雾器19上端设有第二导气管32，所述泡沫室下端与出液管21连通，所述锥型泡沫板与泡沫缓冲室26之间设有防涡板28，所述防涡板28下端设有出油管20，所述出液管21与出油管20连通。预分离模块,所述预分离模块包括位于壳体23左侧的筒体6，所述筒体6侧面与入口管5连通，含气原油通过所述入口管5呈旋转状态进入筒体6内，所述筒体6的上端与第二出气管8连通，所述第二出气管8通过第一导气管16与捕雾器19连通，所述筒体6内部靠近第二出气管8一端设有挡液板7，所述筒体6的下端设有止旋构件9，所述止旋构件9下端设有布液构件10。所述入口管5、第一导气管16、出液管21、出油管20、第二导气管32上分别设有阀门。
阀门包括第一阀门1、第二阀门2、第三阀门3、第四阀门4、第五阀门29，所述第一阀门1位于入口管5上，所述第二阀门2位于第一导气管16上，所述 第三阀门3位于出油管20上，所述第四阀门4位于出液管21上，所述第五阀门29位于第二导气管32上。出液管21和出油管20汇聚成一条支路，汇聚成的一条支路上设有涡街流量计24。捕雾器19上端的第二导气管32上依次设有吸附装置27、第五阀门29和涡轮流量计25。旋转式消泡浆上端与电机13相连，所述电机13位于壳体23顶部。壳体23顶部还设有泄压阀15。壳体23下端设有加热带30。消泡网22位于泡沫缓冲室26的上端。入口管5倾斜切入筒体6的侧壁与筒体6连通。锥型消泡板上设有呈矩阵排列的若干通孔。
第一阀门1的设置用于控制含气原油从入口管5进入筒体6的开启与关闭，第二阀门2的设置控制预分离模块分离出的气体与主分离模块分离出的气体汇聚，然后一起汇聚到捕雾器19内，实现去除雾滴，实现对气体中含有的雾滴原油进一步分离，具有保证有效分离的技术效果。
第三阀门3的设置用于控制出油管20的开通和关闭，第四阀门4的设置用于控制出液管21的开通和关闭，第五阀门29的设置用于控制第二导气管32的开通与关闭进而实现气体有吸附装置27通向涡轮流量计25，入口管5的设置实现向筒体6内注入含气原油，其中入口管5倾斜并与筒体6内壁相切连通，切向入口具有使进入分离器筒体6的流体旋转产生旋转流场，气相向分离器筒体6轴心运动，并上升旋至第二出气管8导出，液相向器壁运动，在离心力和重力作用下形成向下的外旋流，经止旋构件9止旋后流入主分离模块，进而在预分离模块通过旋转离心力及旋转扰动实现气体与液体初步有效分离的技术效果，通过旋转离心力使混在油液间隙中的气体被挤压出来，又利用气体上升，液体下降原理实现气体从上端导出，液体从下端导出进一步分离，实现对含气原油初步有效分离的作用。
筒体6内上端设有挡液板7，其挡液板7交错排列，具有有效阻挡气中的液滴向上运动，但不影响气相流动的作用，进而保证离心后的气体向上导出过程中对水汽的阻挡，使气体中的水汽遇到阻挡会吸附在挡液板7上，再加上挡液板7的交错设置，延长了水汽导出的路径，使水汽在导出过程中被来回变化方向的阻挡，实现了有效分离气体中的油滴，然后经过第一导气管16进一步通过捕雾器19去除气体中油滴在经过吸附装置27进一步吸附，从而实现了对气体中油滴的最有效分离。
止旋构件9可阻断流体的切向运动以稳定来流和防止分离出的液体重新卷入气相中，与离心配合实现液滴中气体最大程度的挤压出来，布液构件10可阻挡流体逆流和减少流体自身的动能；预分离模块具有初步有效分离气和原油的技术效果。整流部件具有进一步减少流体进入主分离模块后的不稳定流动的作用。
锥孔式消泡桨既具有加速油气分离的作用，且锥孔式设计能有效的消除泡沫。通过旋转一方面促使含气原油从左向右运动，并且经过浆的搅拌和拍打继续将含气原油中的气体挤压出来，进而实现下一步的继续分离。
阻液网18具有分离气中带有的小液滴的作用。锥形消泡板14一方面能在流体冲击锥形消泡板14时将气泡分离出来，另一方面能在气泡爬升的过程中消泡孔，使气泡破裂。防涡板28使分离出液相平稳地从出油管20流出。加热带30增加分离器内温度，具有加快分离器的分离速率的作用，减少CO 2在油中的溶解度，提升分离效率。分离器壳体23设有泄压阀15，能够避免分离器内压力过高，起到保护作用，电机13的设置为旋转式消泡浆提供旋转动力，涡街流量计24用于检测分离的油量，泡沫缓冲室26的设置实现对终端泡沫的处理，消泡网22对泡沫破裂，然后油液进入泡沫缓冲室26，并通过下端的出液管21导出，吸附装置27实现对气体的进一步吸附，第二导气管32用于连接捕雾器19、吸附装置27和涡轮流量计25，涡轮流量计25实现对分理出气体量的检测。锥形消泡板14后的出油管20入口处设有的防涡板28，防止产生涡流。吸附装置27后设有气相涡轮流量计25，在汇聚于一路的出油管20后设有液相涡街流量计24，分别用于计量分离后的气相和液相流量。
本专利通过多级、连续、复合联动分离含气原油，通过离心旋转和旋转式消泡浆双级分离含气原油内的气体，通过挡液板7、捕雾器19、吸附装置27多级分离气体中含有的油滴，通过锥型消泡板、消泡网22、阻液网18多级穿破气泡，分离油滴和气体，进而实现含气原油的有效分离。
工作原理及使用方法：本发明在使用时，打开第一阀门1，CO 2驱原油通过入口管5斜向沿着筒体6的筒壁进入筒体6，气相向筒体6分离器轴心运动，并上升，旋至上端第二出气管8导出；液相向筒壁运动，在离心力和重力作用下形成向下的外旋流，然后经过止旋构件9止旋和布液构件10减少流体动能后进 入壳体23，然后从左向右流过整流部件进一步减少流体的不稳定流动，再经过旋转式消泡桨12和锥形消泡板14，由防涡器稳流后从底部出油口流出，其中上层的液相和少量气泡越过泡沫缓冲室26的隔板17穿过消泡网22流入泡沫缓冲室26，停留20分钟后打开第四阀门4经出液管21流出，与出油管20汇聚流至涡街流量计24计量液相流量，同时上方的气相经阻液网18分离出小液滴后由第一出气管31导出，与第二导气管32汇聚后经过捕雾器19，再流过涡轮流量计25计量气相流量。
有益效果：
通过预分离模块入口管5和筒体6倾斜相切连通，切向入口具有使进入分离器筒体6的流体旋转产生旋转流场，气相向分离器筒体6轴心运动，并上升旋至第二出气管8导出，液相向器壁运动，在离心力和重力作用下形成向下的外旋流，经止旋构件9止旋后流入主分离模块，进而在预分离模块通过旋转离心力及旋转扰动实现气体与液体初步有效分离的技术效果，且筒体6内挡液板7交错排列可有效阻挡气中的液滴向上运动，但不影响气相流动，止旋构件9可阻断流体的切向运动以稳定来流和防止分离出的液体重新卷入气相中，布液构件10可阻挡流体逆流和减少流体自身的动能；预分离模块具有初步有效分离气和原油的技术效果。再通过整流部件进一步减少流体进入主分离模块后的不稳定流动。通过锥孔式消泡桨既加速油气分离，且锥孔式设计有效的消除泡沫。通过阻液网18分离气中带有的小液滴。采用锥形消泡板14一方面在流体冲击锥形消泡板14时将气泡分离出来，另一方面在气泡爬升的过程中消泡孔，使气泡破裂。防涡板28使分离出液相平稳地从出油管20流出。通过加热带30增加分离器内温度，加快分离器的分离速率，减少CO 2在油中的溶解度，提升分离效率。通过分离器壳体23设有泄压阀15，避免分离器内压力过高，起到保护作用，进而实现对含气原油油和气的有效分离，本专利具有含气原油分离充分的技术效果。
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
上述虽然结合附图对本公开的具体实施方式进行了描述，但并非对本公开保护范围的限制，所属领域技术人员应该明白，在本公开的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本公开的保护范围以内。

Claims (10)

  1. 一种CO 2驱采出流体气液分离装置,其特征在于,包括：
    主分离模块，所述主分离模块包括壳体，所述壳体内部从左到右依次设有整流构件、旋转式消泡浆、锥型消泡板、泡沫缓冲室；所述泡沫缓冲室包括消泡网，所述消泡网上端设有阻液网，所述阻液网右侧设有第一出气管，所述第一出气管与捕雾器连通，所述捕雾器上端设有第二导气管，所述泡沫缓冲室下端与出液管连通，所述锥型泡沫板与泡沫缓冲室之间设有防涡板，所述防涡板下端设有出油管，所述出液管与出油管连通；
    预分离模块,所述预分离模块包括位于壳体左侧的筒体，所述筒体侧面与入口管连通，含气原油通过所述入口管呈旋转状态进入筒体内，所述筒体的上端与第二出气管连通，所述第二出气管通过第一导气管与捕雾器连通，所述筒体内部靠近第二出气管一端设有挡液板，所述筒体的下端设有止旋构件，所述止旋构件下端设有布液构件；
    所述入口管、第一导气管、出液管、出油管、第二导气管上分别设有阀门。
  2. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，所述阀门包括第一阀门、第二阀门、第三阀门、第四阀门、第五阀门，所述第一阀门位于入口管上，所述第二阀门位于第一导气管上，所述第三阀门位于出油管上，所述第四阀门位于出液管上，所述第五阀门位于第二导气管上。
  3. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，所述出液管和出油管汇聚成一条支路，汇聚成的一条支路上设有涡街流量计。
  4. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，所述捕雾器上端的第二导气管上依次设有吸附装置、第五阀门和涡轮流量计。
  5. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，还包括旋转式消泡浆，所述旋转式消泡浆上端与电机相连，所述电机位于壳体顶部。
  6. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，所述壳体顶部还设有泄压阀。
  7. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，所述壳体下端设有加热带。
  8. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，所述消泡网位于泡沫缓冲室的上端。
  9. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，所述入口管倾斜切入筒体的侧壁与筒体连通。
  10. 根据权利要求1所述的CO 2驱采出流体气液分离装置，其特征在于，所述锥型消泡板上设有呈矩阵排列的若干通孔。
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