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WO1986003252A1 - Separateur en trois phases - Google Patents

Separateur en trois phases Download PDF

Info

Publication number
WO1986003252A1
WO1986003252A1 PCT/GB1985/000533 GB8500533W WO8603252A1 WO 1986003252 A1 WO1986003252 A1 WO 1986003252A1 GB 8500533 W GB8500533 W GB 8500533W WO 8603252 A1 WO8603252 A1 WO 8603252A1
Authority
WO
WIPO (PCT)
Prior art keywords
vessel
phase separator
separator according
liquid
gas
Prior art date
Application number
PCT/GB1985/000533
Other languages
English (en)
Inventor
Neville P. Chamberlain
Donald F. Forsyth
Original Assignee
Paladon (Engineering) Limited
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
Application filed by Paladon (Engineering) Limited filed Critical Paladon (Engineering) Limited
Publication of WO1986003252A1 publication Critical patent/WO1986003252A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
    • 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

Definitions

  • This invention relates to a three phase separator design and in the preferred embodiment provides a separator suitable for separating gas, hydrocarbon liquid and water emanating from a crude oil well. It is conventional to separate the gas, hydro ⁇ carbon and aqueous phases of fluid emanating from an oil well by means of a closed horizontal vessel which, in use, is approximately half filled with liquid to provide a substantial space at the top of the vessel in which liquid particles may disengage from the gaseous phase.
  • a three phase separator comprises a first, lower, vessel which in use is substantially filled with liquid and a second, upper, vessel, mounted atop and in communication with the lower vessel, in which liquid/gas disengagement is effected, the maximum cross-sectional area of the upper vessel, measured in the horizontal plane, being smaller than the maximum cross-sectional area of the lower vessel, easured in the horizontal plane.
  • the upper vessel is a substantially cylindrical vessel mounted with its axis vertical.
  • Incoming crude oil enters the vertical vessel horizontally through an inlet diffusing device containing baffles and/or vanes: this diffuser directs the gas and liquid generally downward into an area where the bulk of the liquid passes downwards into the lower vessel, and the gas together with small en ⁇ trained droplets or foam passes upwards past the inlet diffuser into the upper section of the vertical vessel.
  • Figure 1 illustrates schematically in cross- section a first preferred embodiment of the invention
  • Figure 2 illustrates a second preferred embodi ⁇ ment of the invention.
  • the three phase separator 1 shown in the drawing comprises a lower horizontal cylindrical vessel " 2 mounted on legs 3- I use, the rate at which liquid is removed from the vessel is controlled by level sensors 4,5 so that the vessel is maintained substanially filled with liquid, a typical working liquid level being indicated at 6 in the drawing.
  • Mounted atop the horizontal vessel 2 at one end thereof is an upper cylindrical vertically extending vessel 7 -
  • the vessel 7 extends from the upper surface of the vessel 2 up ⁇ wardly to a gas outlet ⁇ defined at the top end of the vertical vessel.
  • An inlet passage 9 extends through the wall of the vertical vessel 7 and terminates in an inlet diffuser 10 which directs gas and liquid from the inlet passage 9 downwardly in the vessel 7 towards the surface 7 of the liquid in the horizontal vessel 2.
  • gas with entrained liquid droplets or foam flows upwardly in the vessel 7 past the inlet diffuser 10 to a separator 11 mounted in the upper portion of the vertical vessel 7 - Within this separator the gas and entrained liquid or foam are separated.
  • the separator may be of any suitable form, and may for example be a bundle of multicyclone separators as illustrated, or may be a chevron vane separator, or may be of any other suitable form.
  • entrained liquids and solids are subjected to a spinning action causing collapse of any foam, and throwing liquids and solids to the walls of the cyclone tubes.
  • Liquid and solids from the cyclone tubes drain out into a collecting hopper 12 which is connected by a drain-pipe 13 either to The horizontal vessel or to a small separate storage tank. Gas, substantially free from entrained liquids and solids, passes outwardly through the outlet 8.
  • an agglomerator 14 is located in The path of upwardly flowing gas before the gas enters the separator.
  • the agglomerator may be of any suitable type, and may for example consist of wire mesh or a plurality of closely spaced plates. In passing through the agglomerator any very small dispersed droplets impinge on the surface of the agglomerator and are agglomerated into larger dropletswhich either fall down into the horizontal vessel or are entrained by the gas and taken off into the multicyclone bundle for separation. Similarly, any foam entrained in the gas will be wholly or partly collapsed by the surfaces of the agglomerator.
  • the hydrocarbon and water phases separate and are removed from the vessel from respective hydrocarbon and water outlets 15 > 16.
  • a weir 17 is provided near the outlet end of the vessel 2, and the water/hydrocarbon interface to the left of the weir (as viewed in the drawing) is main- tained below the level of the upper edge of the weir by controlling the flow of water from the outlet 16.
  • Level sensors l8,19 are provided to determine the position of the water/hydrocarbon interface. Separation of "the water from the hydrocarbon is essentially by gravity, although separation can be aided by use of a coalesing pack 20 comprising woven metallic mesh, tilted parallel plates, or opposed corrugated sheets.
  • stilling baffles e.g. as illustrated at 21 and 22 are provided in the horizontal vessel to minimise the disturbing effects or surging of process flow and movements occasioned by movement of the separator structure itself, such as would be incurred if the separator was mounted on board a floating production barge or the like.
  • a stilling baffle such as baffle 21, or other suitable means, be provided at the interface of the upper and lower vessels to inhibit movement of the liquid in that area. Movement of the liquid in the remainder of the lower vessel is inhibited because of the small space above the liquid surface aided by the use of optional stilling baffles such as baffle 22.
  • the horizontal vessel can be pro ⁇ vided with a water jet system for clearing sand and other debris from the bottom of the vessel, sand outlets 24,25 being provided for removing such material from the horizontal vessel.
  • the space between the liquid level 6 and the top of a horizontal vessel is maintained at a minimum consistent with allowing satisfactory separation of gas bubbles from the liquid within the horizontal vessel.
  • Gas liberated within the horizontal vessel either flows upwardly through the vertical vessel 7, or is taken via a gas balance line 26 to an upper region of the vertical vessel 7 for removal via gas outlet 8.
  • FIG. 2 a second embodiment of three phase separator is shown, parts corresponding to those of the first embodiment being marked with the same reference numerals.
  • the lower vessel 2 is spherical and the upper vessel 7 is a vertical cylinder mounted centrally atop the lower vessel.
  • a suitable stilling baffle (not shown) is located at the interface of the upper and lower vessels, and a weir (not shown) is provided within the lower vessel between the outlets 15, 16.
  • Level sensors 28 control the rate of withdrawl of hydrocarbon and aqueous liquids to maintain the lower vessel substantially completely filled with liquid.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cyclones (AREA)

Abstract

Un séparateur pour traiter un gaz transportant de l'eau et des hydrocarbures liquides entraînés comprend un conteneur horizontal (2) et un conteneur vertical (7). Le niveau du liquide dans le conteneur horizontal est régulé de sorte que le conteneur horizontal soit sensiblement rempli de liquide. Le gaz avec les particules liquides entraînées entrent dans le conteneur (7) par un diffuseur d'admission (10) qui dirige l'écoulement entrant vers le bas dans le conteneur (7). Le gaz et les particules liquides entraînées s'écoulent ensuite vers le haut au devant du diffuseur (10), au travers d'un agglomérateur (14) pour entrer dans un groupe à multicyclone dans lequel les particules liquides et solides sont extraites. Le matériau aqueux est séparé du fond du conteneur horizontal et est refoulé par une sortie (16), les hydrocarbures s'écoulant par dessus un déversoir (17) et étant refoulés par une sortie (15).
PCT/GB1985/000533 1984-11-20 1985-11-20 Separateur en trois phases WO1986003252A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8429313 1984-11-20
GB848429313A GB8429313D0 (en) 1984-11-20 1984-11-20 Three phase separator

Publications (1)

Publication Number Publication Date
WO1986003252A1 true WO1986003252A1 (fr) 1986-06-05

Family

ID=10570001

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1985/000533 WO1986003252A1 (fr) 1984-11-20 1985-11-20 Separateur en trois phases

Country Status (2)

Country Link
GB (2) GB8429313D0 (fr)
WO (1) WO1986003252A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308384A (en) * 1991-10-16 1994-05-03 A. Ahlstrom Corporation Deaeration vessel
WO1997027928A3 (fr) * 1996-01-31 1997-10-23 Inst Francais Du Petrole Dispositif et procede pour agglomerer et precipiter des particules contenues dans un courant de gaz
US7014757B2 (en) 2003-10-14 2006-03-21 Process Equipment & Service Company, Inc. Integrated three phase separator
CN107701230A (zh) * 2017-10-18 2018-02-16 张培 一种煤矿瓦斯抽放系统电控自动排渣放水器
US11136873B2 (en) 2017-04-11 2021-10-05 Kustom Koncepts, Inc. Skid mounted oil well production processing system
CN116181306A (zh) * 2023-04-24 2023-05-30 北京科力丹迪技术开发有限责任公司 一种带有自动排水结构的三相分离器及其使用方法
WO2023102466A1 (fr) * 2021-12-02 2023-06-08 Occidental Oil And Gas Corporation Système et procédé pour séparer des gaz présents dans des courants de production de pétrole

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312044A (en) * 1964-03-23 1967-04-04 Neill Tank Company Inc O Means for treating oil well production
US3360903A (en) * 1965-07-19 1968-01-02 Combustion Eng Treatment of oil well production
DE1271655B (de) * 1964-07-08 1968-07-04 Donald A Sillers Jun Vorrichtung zum Herabsetzen des Partikelgehaltes von und der Pulsationen in einem Gasstrom
EP0018168A2 (fr) * 1979-04-11 1980-10-29 The British Petroleum Company p.l.c. Séparateur pour la séparation d'huile et de gaz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312044A (en) * 1964-03-23 1967-04-04 Neill Tank Company Inc O Means for treating oil well production
DE1271655B (de) * 1964-07-08 1968-07-04 Donald A Sillers Jun Vorrichtung zum Herabsetzen des Partikelgehaltes von und der Pulsationen in einem Gasstrom
US3360903A (en) * 1965-07-19 1968-01-02 Combustion Eng Treatment of oil well production
EP0018168A2 (fr) * 1979-04-11 1980-10-29 The British Petroleum Company p.l.c. Séparateur pour la séparation d'huile et de gaz

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308384A (en) * 1991-10-16 1994-05-03 A. Ahlstrom Corporation Deaeration vessel
WO1997027928A3 (fr) * 1996-01-31 1997-10-23 Inst Francais Du Petrole Dispositif et procede pour agglomerer et precipiter des particules contenues dans un courant de gaz
US6007593A (en) * 1996-01-31 1999-12-28 Dullien, Francis A.L. Device for agglomerating and precipitating particles in a gas stream
US6099622A (en) * 1996-01-31 2000-08-08 Institut Francais Du Petrole Method for agglomerating and precipitating particles
US7014757B2 (en) 2003-10-14 2006-03-21 Process Equipment & Service Company, Inc. Integrated three phase separator
US11136873B2 (en) 2017-04-11 2021-10-05 Kustom Koncepts, Inc. Skid mounted oil well production processing system
US11428090B2 (en) 2017-04-11 2022-08-30 Kustom Koncepts, Inc. Skid mounted oil well production processing system
US11549350B2 (en) 2017-04-11 2023-01-10 Kustom Koncepts, Inc. Skid mounted oil well production processing system
CN107701230A (zh) * 2017-10-18 2018-02-16 张培 一种煤矿瓦斯抽放系统电控自动排渣放水器
WO2023102466A1 (fr) * 2021-12-02 2023-06-08 Occidental Oil And Gas Corporation Système et procédé pour séparer des gaz présents dans des courants de production de pétrole
CN116181306A (zh) * 2023-04-24 2023-05-30 北京科力丹迪技术开发有限责任公司 一种带有自动排水结构的三相分离器及其使用方法
CN116181306B (zh) * 2023-04-24 2023-08-22 北京科力丹迪技术开发有限责任公司 一种带有自动排水结构的三相分离器及其使用方法

Also Published As

Publication number Publication date
GB8617801D0 (en) 1986-08-28
GB8429313D0 (en) 1984-12-27
GB2178977A (en) 1987-02-25

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