WO2009006672A1 - Séparateur fluide-fluide - Google Patents

Séparateur fluide-fluide Download PDF

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Publication number
WO2009006672A1
WO2009006672A1 PCT/AU2008/000831 AU2008000831W WO2009006672A1 WO 2009006672 A1 WO2009006672 A1 WO 2009006672A1 AU 2008000831 W AU2008000831 W AU 2008000831W WO 2009006672 A1 WO2009006672 A1 WO 2009006672A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
separator
liquid
inner pipe
gas
Prior art date
Application number
PCT/AU2008/000831
Other languages
English (en)
Inventor
Mohamed Nabil Noui-Mehidi
Eugenio Spano Rosa
Gerardo Alonso Sanchez Soto
Edson Yoshihito Nakagawa
Mayela Rivero
Original Assignee
Commonwealth Scientific And Industrial Research Organisation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2007903792A external-priority patent/AU2007903792A0/en
Application filed by Commonwealth Scientific And Industrial Research Organisation filed Critical Commonwealth Scientific And Industrial Research Organisation
Publication of WO2009006672A1 publication Critical patent/WO2009006672A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/04—Tangential inlets
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/34—Arrangements for separating materials produced by the well
    • E21B43/38—Arrangements for separating materials produced by the well in the well
    • E21B43/385—Arrangements for separating materials produced by the well in the well by reinjecting the separated materials into an earth formation in the same well
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/107—Cores; Devices for inducing an air-core in hydrocyclones

Definitions

  • the present invention relates to fluid-fluid separators and to systems and methods using such separators.
  • the separators may have particular use in the petroleum industry, in the separation of for example gas and liquid phases of a process fluid, and may be especially useful for separating liquid from gas in the production of gas from a gas field. They may have wider application also.
  • multiphase separation in which separate product streams are produced from the initial formation fluid that enters the well bore. It may for example be desirable to separate and produce an oil stream or a gas stream from a well bore, whilst appropriately disposing of other phases, e.g. by re- injection into a producing formation, or to separate and produce both streams.
  • Multiphase separators need to be reliable, appropriately sized for the environment, and able to cope with the various characteristics of the mixture of fluids that is to be processed.
  • a separator's size may be particularly important when it is to be used on a production rig or in a seabed installation, and especially when it is to be used downhole in a production well.
  • the present invention aims to provide fluid-fluid separators that in their various forms may have a number of advantages, and that may for example be compact in size.
  • the separators may be particularly advantageous in downhole and seabed separation processes, although they may also have broader applicability and be usable in a number of other fields such as platform applications or on-shore applications. Disclosure of the Invention
  • the present invention provides a method of separating a fluid stream containing a gas phase and a liquid phase, including the steps of: injecting said fluid stream into an annular passage defined by an inner pipe and an outer pipe that is concentric with said inner pipe and that extends downwardly past an open lower end of said inner pipe; passing the whole of said fluid stream downwardly along a spiral guide vane in said annular passage, such that said fluid stream is separated by centrifugal force into a gas phase and a liquid phase; collecting said gas phase from said open lower end of said inner pipe; and allowing said liquid to fall under gravity through a lower portion of said outer pipe.
  • closure element of the above mentioned first aspect is spaced upwardly from said fluid mixture inlet.
  • This has the advantage of providing an annular chamber portion above the fluid mixture inlet to accommodate surges of an input mixture of fluids, e.g. slugs of gas and/or liquid.
  • the fluid mixture inlet is configured such that it directs fluid tangentially into the annular passage. This has the advantage that it promotes the swirling motion of the input mixture of fluids.
  • the invention provides a gas-liquid separator including: an input stage in which process fluid is input; a first or primary separation stage below said input stage, including a spiral guide vane for separating gas and liquid phases of said process fluid by a centrifugal action as said process fluid flows downwardly through said primary separation stage; and a second separation stage below said primary separation stage, in which said liquid phase flows downwardly under gravity to a liquid reservoir stage, and in which said gas phase is vented upwardly centrally of said secondary separation stage, wherein the input stage is sealed such that all of the process fluid is passed through the primary separation stage.
  • any one of the aspects mentioned above may include any of the features of any of the other aspects mentioned above and may include any of the features of any of the embodiments described below.
  • Figure 1 is a schematic cross-sectional view from the side of a fluid-fluid separator according to an embodiment of the invention
  • Figure 2 is a schematic cross-sectional view from above through the fluid mixture inlet of the separator of Fig. 1 ;
  • Figure 3 is a schematic cross-sectional view through a cross baffle for stopping swirl of a separated liquid phase of the separator of Fig. 1 ;
  • Figure 4 is a schematic cross-sectional view from the side of a gas- liquid separator located downhole in a subsea well bore.
  • Figure 5 is a graph giving an operational envelope for a separator according to an embodiment of the invention.
  • a fluid-fluid separator 10 separates a multiphase fluid 12 into a gas phase 14 and a separate liquid phase 16.
  • the separator 10 is a gas-liquid separator.
  • the separator 10 includes an inner pipe 18 that has, in use of the separator 10, an open lower end 20 defining an entrance 22 for a separated first fluid, i.e. in this embodiment a gas, and an upper end 24 that communicates with appropriate gas processing equipment (not shown).
  • An outer pipe 26 is concentric with the inner pipe 18 and extends downwardly past the open lower end 22 of the inner pipe 18.
  • the outer pipe 26 includes an upper portion 28 that receives the mixture of fluids 12 and a lower portion 30 that defines a collection area 32 for a separated second fluid, i.e. in this embodiment a liquid and communicates with appropriate liquid processing equipment (not shown).
  • a spiral guide vane 34 is located in the annular passage 36 defined between the inner and outer pipes 18 and 26 to form a swirl tube.
  • the mixture of fluids 12, i.e. the multiphase fluid 12 of gas and liquid, is input to the separator 10 via a horizontal fluid mixture inlet 38 in the outer pipe 26 that is tangential to the annular passage 36, as shown in Fig. 2, so that the fluid stream 12 enters the annular passage 36 tangentially and produces a swirl motion.
  • a closure element e.g. a top plate 40 between a pair of flanges 42, seals off the annular passage 36 above the fluid mixture inlet 38, so that all of the fluid 12 is forced along the spiral guide vane 34.
  • the top plate 40 is spaced from the fluid mixture inlet 38 to form an annular chamber portion 44 to accommodate surges of the fluid 12, e.g. slugs of gas and/or liquid.
  • the inner pipe 18 extends downwardly past the lower end of the spiral vane 34 to form a baffle portion 50.
  • This length 50 of straight piping helps to minimize atomization (i.e. droplets shearing off) of the separated liquid phase 15, and acts to stabilize the separated liquid and gas films 15 and 13, and reduce carry-over of liquid into the gas stream 14.
  • the inner pipe 18 provides a stabilization baffle 50 that extends downwardly from the spiral guide vane 34 to the open lower end 22 of the inner pipe 18.
  • the separated gas phase 13-14 of the fluid stream 12 naturally vents via the open lower end 22 of the inner pipe 18 upwardly via the inner pipe 18 to gas processing equipment.
  • the separated liquid phase 15 of the fluid stream 12 flows downwardly under gravity along the inner wall 46 of the outer pipe 26 to the collection area 32.
  • gas entrained in the liquid may be separated by gravity, i.e. may bubble out and also vent via gas opening 22.
  • a cross baffle 52 as shown in cross-section in Fig. 3, is provided in the lower portion 30 of the outer pipe 26 in the liquid collection area 32 in the centre of the pipe 26, so as to break up or stop the liquid swirling motion in the liquid collection area 32.
  • a gas vortex 17 will penetrate into the liquid collection area 32 centrally of the pipe 26, and both gas and liquid vortices will be present in the central region of the collection area 32.
  • the cross baffle 52 comprises diametral or radial plates 54 arranged at 90° to each other that extend a distance along the pipe 26 to facilitate suppression of the vortex motion of the liquid 15-16 and allow gas bubbles in the liquid to rise due to buoyancy and escape into the gas entrance 22.
  • the cross baffle 52 may therefore help to increase gas separation and to reduce gas entrainment in the liquid stream 16 (that is, it reduces gas carry-under).
  • gas carry-under of less than 7% has been achieved in a separated liquid stream which includes salts such that the liquid mimics sea water.
  • Either or both of the gas phase 14 and liquid phase 16 may be produced from the separator 10 for use, e.g. distribution and sale. If one of the streams is not of use, it may be appropriately treated and disposed of.
  • the separator 10 can be made to be compact and robust, and is simple to manufacture and reliable in use. It may for example be made from suitable metal piping and guide vanes welded together. It may be especially useful in harsh environments and in environments where space is critical.
  • the design promotes high separation performance under a large operational range, e.g. of superficial velocities (i.e. of flow rates through a specific area) and of gas/liquid ratios.
  • the same design may therefore be used in many different environments without change, and may be used in situations that must accommodate fluctuations in the characteristics of the multiphase fluid.
  • the passing of the mixture of fluids 12 downwardly along a spiral guide vane 34 to provide a primary gas and liquid separation stage enables the separator 10 to use both centrifugal force and gravity to provide a high degree of separation, as well as to be compact in design.
  • the input stage with the tangential fluid mixture inlet 38 and sealing of the annular passage 36 via the plate 40 prevents liquid spill over into the gas stream 14, whilst also assisting in the separation by keeping the pressure of the mixture of fluids 12 within the chamber 44 high and providing a swirling motion into the spiral guide vane 34.
  • the use of a single spiral vane guide 34 has been found to work well, as it allows for high g-forces to be applied to the mixture of fluids 12.
  • the spiral guide vane 34 may have a constant pitch, and may be angled up to 20 degrees (from the horizontal). It may for example have a pitch in the range of about 10 to about 15 degrees. It may have up to 10 turns, with 5 to 7 being found to be particularly useful and to handle a wide range of multiphase flow rates.
  • the design should be such as to give a "swirl number" (i.e. the ratio of the tangential velocity relative to the axial velocity - which depends of the gas/liquid ratio) at the end of the spiral vane 34 that is as high as possible.
  • Embodiments of the invention have been designed which deliver a g-force equivalent up to 4000g in the gas stream at the discharge end of the spiral guide vane 34.
  • the annular chamber 44 may for example be sized to have a length of say 3 to 5 times the internal diameter of the outer pipe 26.
  • the stabilizing baffle 50 portion of the inner pipe 18 may be of suitable length so as to provide appropriate stability to the gas and liquid films 13 and 15. It has been found that a baffle 50 length of about 1 to 4 times the inner diameter of the inner pipe 18 provides good results over a wide liquid content range. An increase in liquid content in the fluid flow may be accommodated by an increase in length of the stabilizing baffle 50.
  • the inner and outer pipes 18 and 26 may be sized for desired gas flow rates, superficial velocities and gas-liquid ratios of the fluid 12. In use, a desired gas flow rate may dictate a suitable outer pipe 26 size for stability. It has been found that an inner pipe 18 inner diameter of about 75 to 80% of the outer pipe 26 inner diameter provides a useful design.
  • the cross baffle 52 is placed diametrically within the outer pipe 26 ideally just below where the gas and liquid vortices occur in the liquid collection area 32.
  • the distance between the cross baffle 52 and the gas entrance 22 may be for example about 10 times the diameter of the outer pipe 26.
  • the parameters of most importance in the design of a separator 10 to suit a given application are the pitch and number of turns of the spiral guide vane 34, the inner diameter of the gas or inner pipe 18 and the length of the baffle portion 50 of the gas or inner pipe 18.
  • the graph of Figure 5 is a plot of the superficial velocity of a separated liquid phase (V L ) against the superficial velocity of a separated gas phase (V G ) from an input fluid mixture into an experimental test embodiment of the invention.
  • the dimensions of this experimental test embodiment were a diameter of 50 mm (2 inches) for the outer pipe and a diameter of 38 mm (1.5 inches) for the production pipe (inner pipe) with a helical pitch of 38 mm (1.5 inches).
  • the space length above the fluid mixture inlet was equivalent to five (5) times the inner pipe diameter and the inlet diameter was 25.4 mm (1 inch).
  • the baffle length below the end of the spiral guide vane was equivalent to one (1 ) diameter of the inner pipe.
  • the total length of the separator was 40 times the diameter of the outer pipe.
  • the graph of Figure 5 gives an operational envelope for liquid carry-over (i.e. liquid entrained in the gas stream) and delimits the range of gas and liquid superficial velocities (i.e. flow rates through a specific area) below which the separator efficiency is 100%, i.e. gas and liquid are perfectly separated.
  • the envelope is equivalent to a stability boundary in terms of composition of fluids in the inlet which indicates whether liquid carry-over happens or not depending on the operating location in the graph.
  • Such an envelope is also used to scale up separator systems from an experimental scale to a full scale when superficial velocities are taken into consideration as one of the scaling parameters.
  • Fig. 4 shows a separator 10 formed in the manner of Fig. 1 downhole in a production well bore 60 sunk on the seabed 62.
  • the well bore 60 is lined by a casing 64, which is perforated with holes 66 in a production zone 68 so as to allow process fluid 70 to flow into the well bore 60 from the surrounding productive formation 72.
  • the separator 10 is supported by the inner pipe 18, and has a packer 74 provided about the pipe 18 above the separator inlet 38 and associated with the closure top plate 40, and a packer 76 provided on the outer pipe 26 above a liquid outlet end 30.
  • a pump 78 is provided on the end of the separator 10 to pump the liquid 16 separated from the process fluid 70 back into the formation 72 via further perforations 80 in the casing 64.
  • Gas 14 produced from the fluid stream 70 can be vented via piping 18 to a subsea processing station or to a rig or onshore processing plant.
  • embodiments of the invention could be designed for implementation in gas fields with high gas-liquid ratio (GLR) with a liquid content possibly up to 45% v/v at operating conditions, and a preferable maximum liquid content of about 15% for a no liquid carry over condition. It is also expected that such embodiments could operate with high gas flow rates of at least 150 MMSCFD and be used in confined spaces such as down-hole diameters up to 12 1 ⁇ inches (310mm).
  • the ratio of the length of separator 10 to the production pipe (inner pipe 18) diameter can be at least 60 and the length of the primary separation stage (defined by the spiral guide vane 34) need be only 15 times the production pipe 18 diameter, thus allowing a relatively short and compact primary separation stage.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Cyclones (AREA)
  • Degasification And Air Bubble Elimination (AREA)

Abstract

La présente invention porte sur un séparateur fluide-fluide (10) (de préférence gaz-liquide) dans lequel un mélange d'entrée fluidique (12) descend par un conduit externe (26) le long d'une pale de guidage en spirale (34) de telle sorte qu'un premier fluide du mélange (par exemple, un gaz 13) et un second fluide du mélange (par exemple, un liquide 15) sont séparés par centrifugation. Le premier fluide ou gaz (13) entre par l'extrémité inférieure ouverte (22) d'un conduit interne (18) à ventiler vers le haut (14) et le second fluide ou liquide (15) descend jusqu'à un réservoir (32) pour extraction (16). Le conduit externe (26) est scellé (40) au-dessus de l'entrée (38) de telle sorte que la totalité du mélange d'entrée fluidique (12) est amenée à passer le long de la pale de guidage en spirale (34) ; le conduit interne (18) s'étend sur une distance au-dessus de la pale de guidage en spirale (34) pour fournir une chicane de stabilisation (50) des phases fluidiques séparées. Le séparateur (10) peut être rendu très compact et être utilisé dans des trous de forage de l'industrie pétrolière de jusqu'à 310 mm de diamètre.
PCT/AU2008/000831 2007-07-12 2008-06-12 Séparateur fluide-fluide WO2009006672A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2007903792 2007-07-12
AU2007903792A AU2007903792A0 (en) 2007-07-12 Gas-liquid separator

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WO2009006672A1 true WO2009006672A1 (fr) 2009-01-15

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012076701A1 (fr) * 2010-12-10 2012-06-14 Firmus S.A.M. Dispositif de séparation cyclonique comprenant une partie enroulée supérieure et une partie conique inférieure
ITMI20102451A1 (it) * 2010-12-29 2012-06-30 Eni Spa Gruppo e metodo di separazione di una miscela comprendente due fasi fluide tra loro immiscibili e di diversa densita' specifica in particolare per applicazioni a fondo pozzo
CN103071357A (zh) * 2013-02-06 2013-05-01 西安思瑞迪精馏工程有限公司 组合式气液分离器
GB2498741A (en) * 2012-01-25 2013-07-31 Acal Energy Ltd Improved fuel cell electrolyte regenerator and separator
WO2013110950A1 (fr) 2012-01-25 2013-08-01 Acal Energy Limited Régénérateur et séparateur améliorés d'électrolyte de pile à combustible
GB2499820A (en) * 2012-02-29 2013-09-04 Acal Energy Ltd Improved fuel cell electrolyte regenerator and separator
WO2014007755A1 (fr) * 2012-07-06 2014-01-09 Practical Analyzer Solutions Pte. Ltd. Séparateur cyclone centrifuge
US8689892B2 (en) 2011-08-09 2014-04-08 Saudi Arabian Oil Company Wellbore pressure control device
CN105999868A (zh) * 2016-05-10 2016-10-12 中国石油大学(北京) 油气井测试放喷用气液分离器
CN106640031A (zh) * 2016-11-29 2017-05-10 东北石油大学 井下同井采注气液分离器
US20180238242A1 (en) * 2014-07-01 2018-08-23 United Technologies Corporation Geared gas turbine engine with oil deaerator
CN108612515A (zh) * 2018-06-15 2018-10-02 西南石油大学 一种带螺旋稳流锥的海底水合物井下分离装置
WO2019023563A3 (fr) * 2017-07-27 2019-03-07 Saudi Arabian Oil Company Systèmes, appareils, et procédés de séparation d'eaux de fond de puits
US10246983B2 (en) 2016-07-28 2019-04-02 Exxonmobil Upstream Research Systems and methods for achieving three-phase separation and core annular flow in pipelines
CN110206527A (zh) * 2019-01-04 2019-09-06 西南石油大学 一种使用螺旋分离器的大处理量水合物井下分离并联装置
CN113090245A (zh) * 2021-04-19 2021-07-09 华东理工大学 一种天然气水合物井下旋流排序分离装置及方法
US11241639B2 (en) 2016-07-22 2022-02-08 Total Sa Gas-liquid separator, hydrocarbon extractor, and related separation method
CN114345017A (zh) * 2020-10-12 2022-04-15 北京星油科技有限公司 旋流式分离器

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US5482117A (en) * 1994-12-13 1996-01-09 Atlantic Richfield Company Gas-liquid separator for well pumps
US5698014A (en) * 1996-02-23 1997-12-16 Atlantic Richfield Company Liquid carryover control for spiral gas liquid separator
US6394182B1 (en) * 1999-06-08 2002-05-28 Petroleo Brasileiro S.A. - Petrobras Oil-gas separating method and bottom-hole spiral separator with gas escape channel
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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012076701A1 (fr) * 2010-12-10 2012-06-14 Firmus S.A.M. Dispositif de séparation cyclonique comprenant une partie enroulée supérieure et une partie conique inférieure
FR2968579A1 (fr) * 2010-12-10 2012-06-15 Firmus S A M Dispositif de separation d'un melange contenant une solution liquide et des microparticules solides, de fonctionnement economique.
CN103338827B (zh) * 2010-12-29 2017-11-03 艾尼股份公司 用于井下应用的两个不可混合的流体相的分离
RU2600653C2 (ru) * 2010-12-29 2016-10-27 Эни С.П.А. Комплекс и способ сепарации смеси, содержащей две текучие фазы, по меньшей мере частично несмешиваемые друг с другом и имеющие различную удельную плотность, в частности, для внутрискважинного применения
ITMI20102451A1 (it) * 2010-12-29 2012-06-30 Eni Spa Gruppo e metodo di separazione di una miscela comprendente due fasi fluide tra loro immiscibili e di diversa densita' specifica in particolare per applicazioni a fondo pozzo
CN103338827A (zh) * 2010-12-29 2013-10-02 艾尼股份公司 用于井下应用的两个不可混合的流体相的分离
WO2012089785A1 (fr) * 2010-12-29 2012-07-05 Eni S.P.A. Séparation de deux phases immiscibles de fluide pour des applications de fond
US11180396B2 (en) 2010-12-29 2021-11-23 Eni S.P.A. Separation of two fluid immiscible phases for downhole applications
US8689892B2 (en) 2011-08-09 2014-04-08 Saudi Arabian Oil Company Wellbore pressure control device
GB2498741A (en) * 2012-01-25 2013-07-31 Acal Energy Ltd Improved fuel cell electrolyte regenerator and separator
WO2013110950A1 (fr) 2012-01-25 2013-08-01 Acal Energy Limited Régénérateur et séparateur améliorés d'électrolyte de pile à combustible
GB2498741B (en) * 2012-01-25 2015-04-01 Acal Energy Ltd Improved fuel cell electrolyte regenerator and separator
GB2499820A (en) * 2012-02-29 2013-09-04 Acal Energy Ltd Improved fuel cell electrolyte regenerator and separator
WO2014007755A1 (fr) * 2012-07-06 2014-01-09 Practical Analyzer Solutions Pte. Ltd. Séparateur cyclone centrifuge
US9675918B2 (en) 2012-07-06 2017-06-13 Practical Analyzer Solutions Pte. Ltd. Centrifugal cyclone separator
CN103071357A (zh) * 2013-02-06 2013-05-01 西安思瑞迪精馏工程有限公司 组合式气液分离器
US20180238242A1 (en) * 2014-07-01 2018-08-23 United Technologies Corporation Geared gas turbine engine with oil deaerator
CN105999868B (zh) * 2016-05-10 2024-04-19 中国石油大学(北京) 油气井测试放喷用气液分离器
CN105999868A (zh) * 2016-05-10 2016-10-12 中国石油大学(北京) 油气井测试放喷用气液分离器
US11241639B2 (en) 2016-07-22 2022-02-08 Total Sa Gas-liquid separator, hydrocarbon extractor, and related separation method
US10246983B2 (en) 2016-07-28 2019-04-02 Exxonmobil Upstream Research Systems and methods for achieving three-phase separation and core annular flow in pipelines
CN106640031B (zh) * 2016-11-29 2023-02-14 东北石油大学 井下同井采注气液分离器
CN106640031A (zh) * 2016-11-29 2017-05-10 东北石油大学 井下同井采注气液分离器
WO2019023563A3 (fr) * 2017-07-27 2019-03-07 Saudi Arabian Oil Company Systèmes, appareils, et procédés de séparation d'eaux de fond de puits
US10655446B2 (en) 2017-07-27 2020-05-19 Saudi Arabian Oil Company Systems, apparatuses, and methods for downhole water separation
US10934829B2 (en) 2017-07-27 2021-03-02 Saudi Arabian Oil Company Systems, apparatuses, and methods for downhole water separation
US11136875B2 (en) 2017-07-27 2021-10-05 Saudi Arabian Oil Company Systems, apparatuses, and methods for downhole water separation
CN108612515A (zh) * 2018-06-15 2018-10-02 西南石油大学 一种带螺旋稳流锥的海底水合物井下分离装置
CN110206527A (zh) * 2019-01-04 2019-09-06 西南石油大学 一种使用螺旋分离器的大处理量水合物井下分离并联装置
CN114345017B (zh) * 2020-10-12 2023-02-07 北京星油科技有限公司 旋流式分离器
CN114345017A (zh) * 2020-10-12 2022-04-15 北京星油科技有限公司 旋流式分离器
CN113090245B (zh) * 2021-04-19 2022-06-07 华东理工大学 一种天然气水合物井下旋流排序分离装置及方法
CN113090245A (zh) * 2021-04-19 2021-07-09 华东理工大学 一种天然气水合物井下旋流排序分离装置及方法

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