WO2008004882A1 - Method of processing a multiphase well effluent mixture - Google Patents
Method of processing a multiphase well effluent mixture Download PDFInfo
- Publication number
- WO2008004882A1 WO2008004882A1 PCT/NO2007/000248 NO2007000248W WO2008004882A1 WO 2008004882 A1 WO2008004882 A1 WO 2008004882A1 NO 2007000248 W NO2007000248 W NO 2007000248W WO 2008004882 A1 WO2008004882 A1 WO 2008004882A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- gas
- recycled
- flowline
- compressor
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 119
- 238000004064 recycling Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 230000003134 recirculating effect Effects 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 85
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- -1 condensate Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- 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
- E21B43/36—Underwater separating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/005—Pipe-line systems for a two-phase gas-liquid flow
Definitions
- the invention relates to a method of processing a multiphase well effluent mixture.
- the recycled gas is heated up each time when it is compressed in the gas compressor and subsequently cooled in a heat exchanger arranged in the gas recycling conduit.
- a heat exchanger is a large piece of equipment because heat conductivity of the recycled gas is small, so that a large heat exchanging surface is required to cool the recycled gas stream to such a temperature that overheating of the gas compressor is prevented.
- liquid in the liquid flowline may be cooled and recycled into the multiphase well effluent flowline, but in case the well effluents are substantially liquid, then the gas compressor may be substantially solely fed with recycled gas, so that the influx of, substantially liquid well effluents and of ⁇ recycled cooled "liquid is inhibited.
- a method of processing and separating a multiphase well effluent mixture comprising: - transferring the multiphase well effluent mixture via a multiphase well effluent flowline to a gas liquid separator in which the multiphase well effluent mixture is separated into substantially gaseous and liquid fractions;
- the gas liquid separator may be submerged in (sea) water.
- the heat exchanger may be cooled by ambient (sea) water or another suitable cooling liquid.
- the recycled liquid may be cooled in a heat exchanger, which may be arranged in the liquid flowline, or in the liquid recycling conduit.
- the recycled liquid may be injected into the gas recycling conduit, the multiphase well effluent conduit or into the gas-liquid separator.
- An advantage of the injection of cold liquid into the recycled gas stream in accordance with the invention is that the injected cold liquid may be cooled in a compact liquid-liquid heat exchanger, which may be about ten times smaller than the gas-liquid heat exchanger known from WO2005/026497 to directly cool the recycled gas 5 stream.
- FIG.l depicts a multiphase / ,' well effluent processing:5 assembly for use ' in the ,; 'method according to the invention; and , . . , .. ⁇ •;•
- FIG.2 depicts an alternative embodiment of a multiphase well effluent processing assembly for use in the method according to the invention.
- FIG.l depicts a well effluent processing assembly, which is suitable to be installed on the bottom 1 of the sea
- the assembly comprises a subsea multiphase well effluent flowline 3, which is connected to one or more natural gas, condensate, water and/or crude oil production wells 4 and which discharges the multiphase gas and liquid containing well effluent stream G+L into a gas liquid separating vessel 5 in which the multiphase fluid mixture is separated into a substantially gaseous fraction G, which is discharged into a gas flowline 6 that is connected to the upper side of the vessel 5 and a substantially liquid fraction L, which is discharged into a liquid flowline 7 that is connected to the lower side of the vessel 5.
- the substantially liquid fraction L is pumped by a pump 8 through the liquid flowline 7 in which a compact heat exchanger 9 is arranged, in which the liquid stream is cooled by ambient seawater.
- the substantially gaseous fraction G is compressed in a gas compressor 10, which is arranged in the gas flowline 6. [, ⁇ .. -.:. ⁇ ; ⁇ . :
- the subsea well 4 may produce well effluents in a slug type flow regime, such that subsequent gas and liquid slugs are produced, which may be so large that the volume of the gas liquid separator 5 is insufficient to absorb these slugs.
- the liquid level 11 in the separator 5 will rise and may reach the entrance of the gas flowline 6 and may cause substantial damage to the gas compressor 10, which is generally not suitable to compress liquids.
- a liquid level sensor 12 is arranged at a suitable location in the separator vessel 5, which sensor is connected to an anti-surge valve 13 in a gas recycling conduit 14, such that the valve 13 opens if the liquid level reaches the liquid level sensor 12 and gas is recycled from the flowline 6 downstream of the gas compressor 10 via the gas recycling conduit 14 to the multiphase well effluent flowline 3.
- thermometer T in the gas flowline 6 indicates that the temperature of the gas fed into the gas compressor 10 exceeds a predetermined value.
- the thermometer 10 is connected to a valve 16 in the liquid recycling conduit 15 such that the valve 16 progessively opens in response to an increase of the temperature measured by the thermometer T.
- the liquid recycle conduit 15 is furthermore provided with a one way check valve 17, which prevents gas to flow from the gas and liquid recycling conduits 14 and 15 into the liquid flowline 7.
- a one way check valve 17 prevents gas to flow from the gas and liquid recycling conduits 14 and 15 into the liquid flowline 7.
- liquid-liquid heat exchanger 9 may be arranged in the liquid flowline 7 either upstream or downstream of the pump 8 and that the heat exchanger 9 may be arranged in the liquid recycling conduit 15.
- the recycled cooled liquid L co ia may be injected into the gas recycling conduit 14 as shown in FIG.l, or may alternatively be injected into the multiphase well effluent conduit 3 or into the gas liquid separating vessel 5.
- good heat transfer between cold liquid and warm gas is ensured by a large interfacial area between the gaseous and the liquid phases.
- the cooling of the gas occurs due to flashing of liquid into vapour (associated with latent heat) as well as due to an increase in temperature of the liquid.
- FIG.2 depicts an alternative embodiment of the well effluent processing assembly according to the invention, wherein the multiphase well effluents G+L are transported via a multiphase well effluent flowline 23 into a gas-liquid separating vessel 24 from which the separated gas and liquid streams G and L are discharged via liquid and gas flowlines 25 and 26 in which a liquid pump 28 and a gas compressor 30 are arranged.
- gas may be recycled via gas recycling conduit 44, in which an anti-surge valve 43 is arranged, from the gas flowline 26 at a location downstream of the gas compressor 30 into the multiphase well effluent flowline 23.
- a flux of cold liquid L co i d is injected into to the gas recycling conduit 44 via a liquid recycling conduit 45 in which a flow control valve 46 and a liquid-liquid heat exchanger 49 are arranged.
- a jet pump 50 is arranged in the gas recycling conduit 44, which jet pump 50 sucks up a predetermined amount of cold liquid L co i d into the recycled gas stream Gho t / such that the flow control valve 46 may be obsolete.
- liquids may be added to the system; for example a liquid that is used for other purposes in the system (e.g. a liquid chemical to avoid hydrate formation, such as mono-ethylene glycol or methanol) .
- a liquid that is used for other purposes in the system e.g. a liquid chemical to avoid hydrate formation, such as mono-ethylene glycol or methanol
- FIG.2 further depicts that a heating coil 50 may be arranged in the liquid filled lower section of the gas liquid separating vessel 25, which heats the liquid to such a temperature that hydrates will melt and will not obstruct liquid flow to the liquid outlet 25.
- the heating coil 50 may be heated by circulating cooling liquid of the electric motor 51 of the liquid pump 29 through cooling liquid that is heated by the motor 51 via heated cooling liquid circulation conduits 52 through the heating coil 50.
- the heating coil 50 may extend into the gas filled section of the separating vessel 25.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2007270186A AU2007270186B2 (en) | 2006-07-07 | 2007-07-02 | Method of processing a multiphase well effluent mixture |
GB0902044A GB2454125B (en) | 2006-07-07 | 2007-07-02 | Method of processing a multiphase well effluent mixture |
US12/307,710 US8057580B2 (en) | 2006-07-07 | 2007-07-02 | Method of cooling a multiphase well effluent stream |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20063164A NO326079B1 (en) | 2006-07-07 | 2006-07-07 | Process for treating and separating a multi-phase well flow mixture. |
NO20063164 | 2006-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008004882A1 true WO2008004882A1 (en) | 2008-01-10 |
Family
ID=38894778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2007/000248 WO2008004882A1 (en) | 2006-07-07 | 2007-07-02 | Method of processing a multiphase well effluent mixture |
Country Status (5)
Country | Link |
---|---|
US (1) | US8057580B2 (en) |
AU (1) | AU2007270186B2 (en) |
GB (1) | GB2454125B (en) |
NO (1) | NO326079B1 (en) |
WO (1) | WO2008004882A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010019052A1 (en) * | 2008-08-15 | 2010-02-18 | Aker Subsea As | Device for separating and collecting fluid in gas from a reservoir |
WO2010102905A1 (en) * | 2009-03-10 | 2010-09-16 | Siemens Aktiengesellschaft | Drain liquid relief system for a subsea compressor and a method for draining the subsea compressor |
WO2011008103A1 (en) * | 2009-07-15 | 2011-01-20 | Fmc Kongsberg Subsea As | Subsea drainage system |
WO2010110674A3 (en) * | 2009-03-27 | 2011-04-14 | Framo Engineering As | Subsea system with subsea cooler and method for cleaning the subsea cooler |
EP2507516A1 (en) * | 2009-12-04 | 2012-10-10 | Nuovo Pignone S.p.A. | A compressor unit and a method to process a working fluid |
WO2013187773A1 (en) * | 2012-06-14 | 2013-12-19 | Aker Subsea As | Heat exchange from compressed gas |
WO2013187771A1 (en) * | 2012-06-14 | 2013-12-19 | Aker Subsea As | Using wellstream heat exchanger for flow assurance |
WO2013062419A3 (en) * | 2011-10-27 | 2014-01-16 | Aker Subsea As | A method of draining a fluid tank in a fluid separation system |
US9382921B2 (en) * | 2009-12-29 | 2016-07-05 | Aker Subsea As | Control of subsea compressors |
NO340112B1 (en) * | 2012-08-17 | 2017-03-13 | Fmc Kongsberg Subsea As | Process for cooling process fluid |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO325979B1 (en) * | 2006-07-07 | 2008-08-25 | Shell Int Research | System and method for dressing a multiphase source stream |
US9879663B2 (en) * | 2013-03-01 | 2018-01-30 | Advanced Cooling Technologies, Inc. | Multi-phase pump system and method of pumping a two-phase fluid stream |
NO337623B1 (en) * | 2013-03-26 | 2016-05-09 | Fmc Kongsberg Subsea As | Separation system that uses heat in compression |
KR101609414B1 (en) | 2013-03-28 | 2016-04-05 | 현대중공업 주식회사 | Apparatus for Producing Marine Resources of Offshore Plant |
US20160273329A1 (en) | 2013-11-07 | 2016-09-22 | Shell Oil Company | Thermally activated strong acids |
EP3119984A1 (en) * | 2014-03-17 | 2017-01-25 | Shell Internationale Research Maatschappij B.V. | Long offset gas condensate production systems |
CN105370248A (en) * | 2014-08-30 | 2016-03-02 | 中石化重庆涪陵页岩气勘探开发有限公司 | Shale gas well gas testing and production device and flow |
WO2024098384A1 (en) * | 2022-11-11 | 2024-05-16 | Saudi Arabian Oil Company | Pressure boosting system for multi-phase crude oil |
Citations (2)
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---|---|---|---|---|
WO2005026497A1 (en) * | 2003-09-12 | 2005-03-24 | Kværner Oilfield Products A.S. | Subsea compression system and method |
WO2005040670A1 (en) * | 2003-10-07 | 2005-05-06 | Aker Kværner Technology A. S. | Method and system for reducing liquid accumulation in a multiphase flow pipeline |
Family Cites Families (3)
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---|---|---|---|---|
GB0124614D0 (en) | 2001-10-12 | 2001-12-05 | Alpha Thames Ltd | Multiphase fluid conveyance system |
SE0103532D0 (en) | 2001-10-23 | 2001-10-23 | Abb Ab | Industrial robot system |
US7063161B2 (en) * | 2003-08-26 | 2006-06-20 | Weatherford/Lamb, Inc. | Artificial lift with additional gas assist |
-
2006
- 2006-07-07 NO NO20063164A patent/NO326079B1/en unknown
-
2007
- 2007-07-02 GB GB0902044A patent/GB2454125B/en not_active Expired - Fee Related
- 2007-07-02 US US12/307,710 patent/US8057580B2/en not_active Expired - Fee Related
- 2007-07-02 AU AU2007270186A patent/AU2007270186B2/en not_active Ceased
- 2007-07-02 WO PCT/NO2007/000248 patent/WO2008004882A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005026497A1 (en) * | 2003-09-12 | 2005-03-24 | Kværner Oilfield Products A.S. | Subsea compression system and method |
WO2005040670A1 (en) * | 2003-10-07 | 2005-05-06 | Aker Kværner Technology A. S. | Method and system for reducing liquid accumulation in a multiphase flow pipeline |
NO319654B1 (en) * | 2003-10-07 | 2005-09-05 | Aker Kværner Tech As | Method and apparatus for limiting fluid accumulation in a multiphase flow pipeline |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2496002C2 (en) * | 2008-08-15 | 2013-10-20 | Акер Сабси АС | Device for separation and collection of fluid medium entrapped in gas from reservoir |
WO2010019052A1 (en) * | 2008-08-15 | 2010-02-18 | Aker Subsea As | Device for separating and collecting fluid in gas from a reservoir |
AU2009280364B2 (en) * | 2008-08-15 | 2016-05-19 | Aker Solutions As | Device for separating and collecting fluid in gas from a reservoir |
GB2475206A (en) * | 2008-08-15 | 2011-05-11 | Aker Subsea As | Device for separating and collecting fluid in gas from a reservoir |
US8771394B2 (en) | 2008-08-15 | 2014-07-08 | Aker Subsea | Device for separating and collecting fluid in gas from a reservoir |
GB2475206B (en) * | 2008-08-15 | 2012-05-23 | Aker Subsea As | Device for separating and collecting fluid in gas from a reservoir |
EP2233745A1 (en) * | 2009-03-10 | 2010-09-29 | Siemens Aktiengesellschaft | Drain liquid relief system for a subsea compressor and a method for draining the subsea compressor |
WO2010102905A1 (en) * | 2009-03-10 | 2010-09-16 | Siemens Aktiengesellschaft | Drain liquid relief system for a subsea compressor and a method for draining the subsea compressor |
CN102348899A (en) * | 2009-03-10 | 2012-02-08 | 西门子公司 | Drain liquid relief system for a subsea compressor and a method for draining the subsea compressor |
US9163482B2 (en) | 2009-03-27 | 2015-10-20 | Framo Engineering As | Subsea system with subsea cooler and method for cleaning the subsea cooler |
WO2010110674A3 (en) * | 2009-03-27 | 2011-04-14 | Framo Engineering As | Subsea system with subsea cooler and method for cleaning the subsea cooler |
CN102428249A (en) * | 2009-03-27 | 2012-04-25 | 弗拉莫工程公司 | Subsea system with subsea cooler and method for cleaning the subsea cooler |
WO2011008103A1 (en) * | 2009-07-15 | 2011-01-20 | Fmc Kongsberg Subsea As | Subsea drainage system |
EP2507516B1 (en) * | 2009-12-04 | 2021-08-25 | NUOVO PIGNONE INTERNATIONAL S.r.l. | Compressor unit and method to process a working fluid |
EP2507516A1 (en) * | 2009-12-04 | 2012-10-10 | Nuovo Pignone S.p.A. | A compressor unit and a method to process a working fluid |
US9382921B2 (en) * | 2009-12-29 | 2016-07-05 | Aker Subsea As | Control of subsea compressors |
WO2013062419A3 (en) * | 2011-10-27 | 2014-01-16 | Aker Subsea As | A method of draining a fluid tank in a fluid separation system |
NO335390B1 (en) * | 2012-06-14 | 2014-12-08 | Aker Subsea As | Heat exchange from compressed gas |
WO2013187771A1 (en) * | 2012-06-14 | 2013-12-19 | Aker Subsea As | Using wellstream heat exchanger for flow assurance |
AU2013274973B2 (en) * | 2012-06-14 | 2016-11-10 | Aker Subsea As | Heat exchange from compressed gas |
AU2013274971B2 (en) * | 2012-06-14 | 2017-07-06 | Aker Subsea As | Using wellstream heat exchanger for flow assurance |
WO2013187773A1 (en) * | 2012-06-14 | 2013-12-19 | Aker Subsea As | Heat exchange from compressed gas |
NO340112B1 (en) * | 2012-08-17 | 2017-03-13 | Fmc Kongsberg Subsea As | Process for cooling process fluid |
Also Published As
Publication number | Publication date |
---|---|
NO20063164L (en) | 2008-01-08 |
US20100155970A1 (en) | 2010-06-24 |
AU2007270186B2 (en) | 2011-01-27 |
US8057580B2 (en) | 2011-11-15 |
NO326079B1 (en) | 2008-09-15 |
GB2454125A (en) | 2009-04-29 |
GB0902044D0 (en) | 2009-03-18 |
AU2007270186A1 (en) | 2008-01-10 |
GB2454125B (en) | 2011-07-27 |
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