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GB2479110A - Aqueous displacement fluid injection for enhancing oil recovery from a limestone or dolomite formation - Google Patents

Aqueous displacement fluid injection for enhancing oil recovery from a limestone or dolomite formation Download PDF

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Publication number
GB2479110A
GB2479110A GB1113561A GB201113561A GB2479110A GB 2479110 A GB2479110 A GB 2479110A GB 1113561 A GB1113561 A GB 1113561A GB 201113561 A GB201113561 A GB 201113561A GB 2479110 A GB2479110 A GB 2479110A
Authority
GB
United Kingdom
Prior art keywords
limestone
oil recovery
displacement fluid
wettability
aqueous displacement
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB1113561A
Other versions
GB201113561D0 (en
Inventor
Dirk Jacob Ligthelm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
Original Assignee
SHELL INT RESEARCH
Shell Internationale Research Maatschappij BV
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 SHELL INT RESEARCH, Shell Internationale Research Maatschappij BV filed Critical SHELL INT RESEARCH
Publication of GB201113561D0 publication Critical patent/GB201113561D0/en
Publication of GB2479110A publication Critical patent/GB2479110A/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

A method for enhancing oil recovery (EOR) from a limestone or dolomite formation containing crude oil and connate water comprises: -determining a SO42-/Ca2-ratio (Mo1/Mo1) in the connate water; and -injecting into the formation pore spaces an aqueous displacement fluid with a SO42-/ Ca2+molar ratio (Mo1/Mo1) above 1 and a higher SO42-/ Ca2+molar ratio (Mo1/Mo1) than the connate water. The method modifies the wettability of the limestone or dolomite formation such that its oil wettability is reduced and its water wettability is increased. Figure 17 shows that only brines LS2 and LS3 will be effective in wettability modification. In Table 5 it is shown that these brines have a SO42-/ Ca2+ratio (Mo1/Mo1) above 1 and a higher SO42-/ Ca2+ratio (Mo1/Mo1) than the connate water.
GB1113561A 2009-02-13 2010-02-11 Aqueous displacement fluid injection for enhancing oil recovery from a limestone or dolomite formation Withdrawn GB2479110A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09152834 2009-02-13
EP09163147 2009-06-18
PCT/EP2010/051676 WO2010092095A1 (en) 2009-02-13 2010-02-11 Aqueous displacement fluid injection for enhancing oil recovery from a limestone or dolomite formation

Publications (2)

Publication Number Publication Date
GB201113561D0 GB201113561D0 (en) 2011-09-21
GB2479110A true GB2479110A (en) 2011-09-28

Family

ID=42104556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1113561A Withdrawn GB2479110A (en) 2009-02-13 2010-02-11 Aqueous displacement fluid injection for enhancing oil recovery from a limestone or dolomite formation

Country Status (4)

Country Link
EP (1) EP2396383A1 (en)
CN (1) CN102356141A (en)
GB (1) GB2479110A (en)
WO (1) WO2010092095A1 (en)

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* Cited by examiner, † Cited by third party
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US20120090833A1 (en) * 2010-10-15 2012-04-19 Shell Oil Company Water injection systems and methods
MY178145A (en) * 2012-08-09 2020-10-05 Shell Int Research Process for producing and separating oil
RU2671878C2 (en) 2013-09-20 2018-11-07 Бейкер Хьюз Инкорпорейтед Method of using surface modifying treatment agents to treat subterranean formations
NZ751779A (en) 2013-09-20 2020-08-28 Baker Hughes Inc Method of inhibiting fouling on a metallic surface using a surface modifying treatment agent
US9701892B2 (en) 2014-04-17 2017-07-11 Baker Hughes Incorporated Method of pumping aqueous fluid containing surface modifying treatment agent into a well
CA2922692C (en) 2013-09-20 2018-02-20 Baker Hughes Incorporated Method of using surface modifying metallic treatment agents to treat subterranean formations
AU2014321306B2 (en) 2013-09-20 2017-12-14 Baker Hughes, A Ge Company, Llc Organophosphorus containing composites for use in well treatment operations
RU2670802C9 (en) 2013-09-20 2018-11-26 Бейкер Хьюз Инкорпорейтед Composites for use in stimulation of oil production and sand control operations
US9581007B2 (en) 2013-10-09 2017-02-28 Geoffrey Thyne Optimized salinity for enhanced water flood applications
CN104632151B (en) * 2013-11-12 2017-02-08 中国石油天然气股份有限公司 A method of ion-matched water flooding to enhance oil recovery
CN105899754B (en) 2014-01-03 2018-03-13 国际壳牌研究有限公司 Method and system for inhibiting freezing of low salinity water in subsea low salinity water injection flow pipes
MX377371B (en) 2014-04-29 2025-03-10 Bp Exploration Operating Co Ltd HYDROCARBON RECOVERY PROCESS.
US10633574B2 (en) 2017-08-02 2020-04-28 Saudi Arabian Oil Company Compositions and methods to recover irreducible water for enhanced formation evaluation
US10711582B2 (en) * 2018-04-20 2020-07-14 Saudi Arabian Oil Company Salinated wastewater for enhancing hydrocarbon recovery
US11420214B2 (en) 2018-06-15 2022-08-23 Esal, Llc Modified flotation test with in-situ reservoir conditions
CN111855715B (en) * 2020-07-10 2023-05-26 中国石油天然气股份有限公司 A simulation and evaluation method and system for water-rock reaction of pre-salt dolomite
US11883783B2 (en) 2021-02-26 2024-01-30 Saudi Arabian Oil Company System and method for electrochemical treatment of aqueous fluid for oilfield applications

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005106192A1 (en) * 2004-04-30 2005-11-10 Ior Aqua As Method for displacing petroleum from a carbonate rock
WO2008029124A1 (en) * 2006-09-08 2008-03-13 Bp Exploration Operating Company Limited Hydrocarbon recovery process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008029131A1 (en) 2006-09-08 2008-03-13 Bp Exploration Operating Company Limited Hydrocarbon recovery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005106192A1 (en) * 2004-04-30 2005-11-10 Ior Aqua As Method for displacing petroleum from a carbonate rock
WO2008029124A1 (en) * 2006-09-08 2008-03-13 Bp Exploration Operating Company Limited Hydrocarbon recovery process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AUSAD et al, "Seawater as IOR fluid in chalk", SPE 93000, 2005, XP002539828 *

Also Published As

Publication number Publication date
GB201113561D0 (en) 2011-09-21
EP2396383A1 (en) 2011-12-21
CN102356141A (en) 2012-02-15
WO2010092095A1 (en) 2010-08-19

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