WO2002024831A3 - Viscoelastic surfactant fluids at high brine concentrations - Google Patents

Viscoelastic surfactant fluids at high brine concentrations Download PDF

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Publication number
WO2002024831A3
WO2002024831A3 PCT/EP2001/010904 EP0110904W WO0224831A3 WO 2002024831 A3 WO2002024831 A3 WO 2002024831A3 EP 0110904 W EP0110904 W EP 0110904W WO 0224831 A3 WO0224831 A3 WO 0224831A3
Authority
WO
WIPO (PCT)
Prior art keywords
high brine
carrier fluid
viscoelastic surfactant
surfactant fluids
brine concentrations
Prior art date
Application number
PCT/EP2001/010904
Other languages
French (fr)
Other versions
WO2002024831A2 (en
Inventor
Bernhard Lungwitz
Mark E Brady
Sylvie Daniel
Mehmet Parlar
Colin J Price-Smith
Elizabeth Morris
Original Assignee
Sofitech Nv
Schlumberger Services Petrol
Schlumberger Ca Ltd
Schlumberger Technology Bv
Schlumberger Holdings
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 Sofitech Nv, Schlumberger Services Petrol, Schlumberger Ca Ltd, Schlumberger Technology Bv, Schlumberger Holdings filed Critical Sofitech Nv
Priority to AU2002223552A priority Critical patent/AU2002223552A1/en
Priority to GB0304569A priority patent/GB2383813B/en
Publication of WO2002024831A2 publication Critical patent/WO2002024831A2/en
Publication of WO2002024831A3 publication Critical patent/WO2002024831A3/en
Priority to NO20031290A priority patent/NO20031290L/en

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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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/66—Compositions based on water or polar solvents
    • C09K8/68—Compositions based on water or polar solvents containing organic compounds
    • 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
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/017—Mixtures of compounds
    • 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
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/18—Quaternary ammonium compounds
    • 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
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions
    • C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/86—Compositions based on water or polar solvents containing organic compounds
    • 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
    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/30—Viscoelastic surfactants [VES]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S507/00—Earth boring, well treating, and oil field chemistry
    • Y10S507/922—Fracture fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S507/00—Earth boring, well treating, and oil field chemistry
    • Y10S507/927—Well cleaning fluid

Abstract

Present invention relates to high brine carrier fluid, said carrier fluid selected from the group consisting of organic acids, organic acid salts, inorganic salts and combination of one or more organic acids or organic acid salts, a co-surfactant and an amount of a zwitterionic surfactant. The invention also relates to methods of treating a subterranean wellbore, including drilling, hydraulic fracturing, gravel placement, scale removing, mud cake removing, using said high brine carrier fluid.
PCT/EP2001/010904 2000-09-21 2001-09-20 Viscoelastic surfactant fluids at high brine concentrations WO2002024831A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2002223552A AU2002223552A1 (en) 2000-09-21 2001-09-20 Viscoelastic surfactant fluids at high brine concentrations
GB0304569A GB2383813B (en) 2000-09-21 2001-09-20 Viscoelastic surfactant fluids at high brine concentrations
NO20031290A NO20031290L (en) 2000-09-21 2003-03-20 Viscoelastic surfactant fluids that are stable at high saline concentrations

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US66707300A 2000-09-21 2000-09-21
US09/667,073 2000-09-21
US09/918,264 US6762154B2 (en) 2000-09-21 2001-07-30 Viscoelastic surfactant fluids stable at high brine concentrations
US09/918,264 2001-07-30

Publications (2)

Publication Number Publication Date
WO2002024831A2 WO2002024831A2 (en) 2002-03-28
WO2002024831A3 true WO2002024831A3 (en) 2002-09-26

Family

ID=27099606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/010904 WO2002024831A2 (en) 2000-09-21 2001-09-20 Viscoelastic surfactant fluids at high brine concentrations

Country Status (7)

Country Link
US (1) US6762154B2 (en)
AU (1) AU2002223552A1 (en)
GB (1) GB2383813B (en)
MY (1) MY135450A (en)
NO (1) NO20031290L (en)
SA (1) SA01220520B1 (en)
WO (1) WO2002024831A2 (en)

Families Citing this family (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6939483B2 (en) * 2000-02-28 2005-09-06 Pabu Services, Inc. Brine fluids with improved corrosion properties
CA2315544A1 (en) * 2000-08-08 2002-02-08 Alan K. Olson Fracturing method using aqueous or acid based fluids
GB2408506B (en) * 2003-11-29 2007-06-13 Schlumberger Holdings Anionic viscoelastic surfactant
US8785355B2 (en) 2001-02-13 2014-07-22 Schlumberger Technology Corporation Viscoelastic compositions
AU2002361966A1 (en) * 2001-12-03 2003-06-17 Sofitech N.V. Non-damaging fluid-loss control pill and method of using the same
US7148185B2 (en) * 2001-12-03 2006-12-12 Schlumberger Technology Corporation Viscoelastic surfactant fluids stable at high brine concentration and methods of using same
US8273693B2 (en) * 2001-12-12 2012-09-25 Clearwater International Llc Polymeric gel system and methods for making and using same in hydrocarbon recovery
US7183239B2 (en) * 2001-12-12 2007-02-27 Clearwater International, Llc Gel plugs and pigs for pipeline use
US7405188B2 (en) * 2001-12-12 2008-07-29 Wsp Chemicals & Technology, Llc Polymeric gel system and compositions for treating keratin substrates containing same
US6929070B2 (en) * 2001-12-21 2005-08-16 Schlumberger Technology Corporation Compositions and methods for treating a subterranean formation
US7119050B2 (en) * 2001-12-21 2006-10-10 Schlumberger Technology Corporation Fluid system having controllable reversible viscosity
WO2003097995A1 (en) * 2002-05-21 2003-11-27 Sofitech N.V. Viscoelastic surfactant fluids stable at high brine concentration and methods of using same
WO2003097996A1 (en) * 2002-05-21 2003-11-27 Sofitech N.V. Hydraulic fracturing method
US6903054B2 (en) * 2002-08-30 2005-06-07 Schlumberger Technology Corporation Reservoir treatment fluids
US7378378B2 (en) * 2002-12-19 2008-05-27 Schlumberger Technology Corporation Rheology enhancers
US7345012B2 (en) * 2004-12-15 2008-03-18 Schlumberger Technology Corporation Foamed viscoelastic surfactants
US20050003965A1 (en) * 2003-07-01 2005-01-06 Zhijun Xiao Hydraulic fracturing method
US7148184B2 (en) * 2003-07-22 2006-12-12 Schlumberger Technology Corporation Self-diverting foamed system
US7073588B2 (en) * 2004-02-27 2006-07-11 Halliburton Energy Services, Inc. Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids
US7550413B2 (en) * 2004-05-13 2009-06-23 Baker Hughes Incorporated Fluid loss control agents for viscoelastic surfactant fluids
US7879767B2 (en) * 2004-06-03 2011-02-01 Baker Hughes Incorporated Additives for hydrate inhibition in fluids gelled with viscoelastic surfactants
US7595284B2 (en) * 2004-06-07 2009-09-29 Crews James B Metal-mediated viscosity reduction of fluids gelled with viscoelastic surfactants
US7939472B2 (en) * 2004-06-07 2011-05-10 Baker Hughes Incorporated Metal-mediated viscosity reduction of fluids gelled with viscoelastic surfactants
US7244694B2 (en) * 2004-09-02 2007-07-17 Schlumberger Technology Corporation Viscoelastic fluids containing nanotubes for oilfield uses
US7290615B2 (en) * 2004-09-17 2007-11-06 Schlumberger Technology Corporation Fluid having recyclable viscosity
US20060084579A1 (en) * 2004-10-15 2006-04-20 Berger Paul D Viscoelastic surfactant mixtures
US7237608B2 (en) * 2004-10-20 2007-07-03 Schlumberger Technology Corporation Self diverting matrix acid
US7380602B2 (en) * 2004-11-18 2008-06-03 Schlumberger Technology Corporation Composition and method for treating a subterranean formation
US7923419B2 (en) * 2004-12-17 2011-04-12 Baker Hughes Incorporated Methods and compositions for thermal insulation
US7261160B2 (en) * 2005-09-13 2007-08-28 Halliburton Energy Services, Inc. Methods and compositions for controlling the viscosity of viscoelastic surfactant fluids
US20070060482A1 (en) * 2005-09-13 2007-03-15 Halliburton Energy Services, Inc. Methods and compositions for controlling the viscosity of viscoelastic surfactant fluids
US20070125542A1 (en) * 2005-12-07 2007-06-07 Akzo Nobel N.V. High temperature gellant in low and high density brines
US8114820B2 (en) 2006-06-22 2012-02-14 Baker Hughes Incorporated Compositions and methods for controlling fluid loss
DE102006029752A1 (en) * 2006-06-28 2008-01-10 Basf Construction Polymers Gmbh Use of methacrylate derivatives for thickening saline media
US9120964B2 (en) 2006-08-04 2015-09-01 Halliburton Energy Services, Inc. Treatment fluids containing biodegradable chelating agents and methods for use thereof
US9127194B2 (en) 2006-08-04 2015-09-08 Halliburton Energy Services, Inc. Treatment fluids containing a boron trifluoride complex and methods for use thereof
US8567503B2 (en) * 2006-08-04 2013-10-29 Halliburton Energy Services, Inc. Composition and method relating to the prevention and remediation of surfactant gel damage
US8567504B2 (en) * 2006-08-04 2013-10-29 Halliburton Energy Services, Inc. Composition and method relating to the prevention and remediation of surfactant gel damage
US9027647B2 (en) 2006-08-04 2015-05-12 Halliburton Energy Services, Inc. Treatment fluids containing a biodegradable chelating agent and methods for use thereof
CA2611803C (en) * 2006-11-22 2013-03-19 Bj Services Company Well treatment fluid containing viscoelastic surfactant and viscosification activator
DK2092038T3 (en) * 2006-12-12 2018-01-15 Solvay Usa Inc SYSTEM FOR TREATMENT OF Lime deposits
US20080169103A1 (en) * 2007-01-12 2008-07-17 Carbajal David L Surfactant Wash Treatment Fluids and Associated Methods
US20080194432A1 (en) * 2007-02-14 2008-08-14 Jurgen Heidlas Method for breaking the viscosity of polymer-thickened aqueous systems for mineral oil and natural gas exploration
FR2913350B1 (en) * 2007-03-08 2010-05-21 Rhodia Recherches & Tech USE OF BETAINE AS FOAMING AGENT AND FOAM DRAIN REDUCTION AGENT
DE102007020778A1 (en) * 2007-05-03 2008-11-06 Giesecke & Devrient Gmbh Device for handling value documents
US8099997B2 (en) 2007-06-22 2012-01-24 Weatherford/Lamb, Inc. Potassium formate gel designed for the prevention of water ingress and dewatering of pipelines or flowlines
US8065905B2 (en) 2007-06-22 2011-11-29 Clearwater International, Llc Composition and method for pipeline conditioning and freezing point suppression
US8020617B2 (en) 2007-09-11 2011-09-20 Schlumberger Technology Corporation Well treatment to inhibit fines migration
US7806182B2 (en) * 2007-10-25 2010-10-05 Schlumberger Technology Corporation Stimulation method
US8003578B2 (en) * 2008-02-13 2011-08-23 Baker Hughes Incorporated Method of treating a well and a subterranean formation with alkali nitrate brine
US7833943B2 (en) 2008-09-26 2010-11-16 Halliburton Energy Services Inc. Microemulsifiers and methods of making and using same
US8293696B2 (en) * 2009-02-06 2012-10-23 Ecolab, Inc. Alkaline composition comprising a chelant mixture, including HEIDA, and method of producing same
US9662594B2 (en) * 2009-06-22 2017-05-30 Ng Innovations, Inc. Systems and methods for treating fractionated water
US8409442B2 (en) 2009-08-20 2013-04-02 Ng Innovations, Inc. Water separation method and apparatus
US8470139B2 (en) * 2009-12-11 2013-06-25 Nginnovations, Inc. Systems and method for low temperature recovery of fractionated water
CN101967370B (en) * 2010-08-26 2013-04-03 中国海洋石油总公司 Packing fluid for branch well drilling
US9587165B2 (en) * 2010-10-18 2017-03-07 Saudi Arabian Oil Company Non-damaging bimodal stimulation composition and method of use thereof
US8881823B2 (en) 2011-05-03 2014-11-11 Halliburton Energy Services, Inc. Environmentally friendly low temperature breaker systems and related methods
US9334716B2 (en) 2012-04-12 2016-05-10 Halliburton Energy Services, Inc. Treatment fluids comprising a hydroxypyridinecarboxylic acid and methods for use thereof
WO2013191695A1 (en) * 2012-06-21 2013-12-27 M-I L.L.C. Viscoelastic surfactants in mixed brines
US20140256604A1 (en) * 2013-03-06 2014-09-11 Halliburton Energy Services, Inc. Cationic viscoelastic surfactant with non-cationic corrosion inhibitor and organic anion for acidizing
US9670399B2 (en) 2013-03-15 2017-06-06 Halliburton Energy Services, Inc. Methods for acidizing a subterranean formation using a stabilized microemulsion carrier fluid
WO2014140055A1 (en) 2013-03-15 2014-09-18 Akzo Nobel Chemicals International B.V. Synergistic effect of cosurfactants on the rheological performance of drilling, completion and fracturing fluids
US10597574B2 (en) 2014-08-13 2020-03-24 Albemarle Corporation High density aqueous well fluids
CN104289152B (en) * 2014-10-08 2016-01-13 西南石油大学 One class both sexes sulfonate type can gather tensio-active agent and synthetic method thereof
WO2017007781A1 (en) * 2015-07-06 2017-01-12 Schlumberger Technology Corporation Hedta based chelants used with divalent brines, hedta based chelants used with divalent brines, wellbore fluids including the same and methods of use thereof
MY188299A (en) * 2016-11-17 2021-11-25 Albemarle Corp High density aqueous well fluids
CN108968976B (en) 2017-05-31 2022-09-13 心脏起搏器股份公司 Implantable medical device with chemical sensor
CN109381195B (en) 2017-08-10 2023-01-10 心脏起搏器股份公司 Systems and methods including electrolyte sensor fusion
CN109419515B (en) 2017-08-23 2023-03-24 心脏起搏器股份公司 Implantable chemical sensor with staged activation
CN109864746B (en) 2017-12-01 2023-09-29 心脏起搏器股份公司 Multimode analyte sensor for medical devices
CN109864747B (en) 2017-12-05 2023-08-25 心脏起搏器股份公司 Multimode analyte sensor optoelectronic interface
WO2019200283A1 (en) * 2018-04-13 2019-10-17 Mitsubishi Gas Chemical Company, Inc. Viscoelastic surfactant fluid composition, and method of using the same
US11697700B2 (en) * 2020-07-22 2023-07-11 Saudi Arabian Oil Company Synthesis of a cationic surfmer and its copolymers for enhanced oil recovery

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070075A2 (en) * 1981-07-13 1983-01-19 THE PROCTER & GAMBLE COMPANY Foaming dishwashing liquid compositions
WO1998056497A1 (en) * 1997-06-10 1998-12-17 Rhodia Inc. Fluids containing viscoelastic surfactant and methods for using the same
WO2001018147A1 (en) * 1999-09-07 2001-03-15 Crompton Corporation Quaternary ammonium salts as thickening agents for aqueous systems
WO2001083639A2 (en) * 2000-05-03 2001-11-08 Sofitech N.V. Well treatment fluids comprising chelating agents
WO2002012673A1 (en) * 2000-08-07 2002-02-14 Sofitech N.V. Scale dissolver fluid

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725372A (en) * 1980-10-27 1988-02-16 The Dow Chemical Company Aqueous wellbore service fluids
US4695389A (en) 1984-03-16 1987-09-22 Dowell Schlumberger Incorporated Aqueous gelling and/or foaming agents for aqueous acids and methods of using the same
US4735731A (en) * 1984-06-15 1988-04-05 The Dow Chemical Company Process for reversible thickening of a liquid
US5009799A (en) 1988-02-16 1991-04-23 Nalco Chemical Company Inorganic acid solution viscosifier and corrosion inhibitor and method
US4945991A (en) 1989-08-23 1990-08-07 Mobile Oil Corporation Method for gravel packing wells
US5246073A (en) 1992-08-31 1993-09-21 Union Oil Company Of California High temperature stable gels
US5551516A (en) * 1995-02-17 1996-09-03 Dowell, A Division Of Schlumberger Technology Corporation Hydraulic fracturing process and compositions
US6435277B1 (en) * 1996-10-09 2002-08-20 Schlumberger Technology Corporation Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations
US5964295A (en) 1996-10-09 1999-10-12 Schlumberger Technology Corporation, Dowell Division Methods and compositions for testing subterranean formations
GB2338254B (en) 1998-06-12 2002-10-16 Sofitech Nv Well completion clean-up fluids and method for cleaning up drilling and completion filtercakes
US6140277A (en) 1998-12-31 2000-10-31 Schlumberger Technology Corporation Fluids and techniques for hydrocarbon well completion
US6399546B1 (en) * 1999-10-15 2002-06-04 Schlumberger Technology Corporation Fluid system having controllable reversible viscosity
US6631764B2 (en) * 2000-02-17 2003-10-14 Schlumberger Technology Corporation Filter cake cleanup and gravel pack methods for oil based or water based drilling fluids
MXPA02009684A (en) 2000-04-05 2003-04-22 Sofitech Nv Viscosity reduction of viscoelastic surfactant based fluids.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070075A2 (en) * 1981-07-13 1983-01-19 THE PROCTER & GAMBLE COMPANY Foaming dishwashing liquid compositions
WO1998056497A1 (en) * 1997-06-10 1998-12-17 Rhodia Inc. Fluids containing viscoelastic surfactant and methods for using the same
WO2001018147A1 (en) * 1999-09-07 2001-03-15 Crompton Corporation Quaternary ammonium salts as thickening agents for aqueous systems
WO2001083639A2 (en) * 2000-05-03 2001-11-08 Sofitech N.V. Well treatment fluids comprising chelating agents
WO2002012673A1 (en) * 2000-08-07 2002-02-14 Sofitech N.V. Scale dissolver fluid

Also Published As

Publication number Publication date
NO20031290L (en) 2003-05-20
US6762154B2 (en) 2004-07-13
GB2383813A (en) 2003-07-09
GB2383813B (en) 2004-11-17
SA01220520B1 (en) 2006-11-14
GB0304569D0 (en) 2003-04-02
NO20031290D0 (en) 2003-03-20
GB2383813A8 (en) 2003-07-09
WO2002024831A2 (en) 2002-03-28
AU2002223552A1 (en) 2002-04-02
US20020033260A1 (en) 2002-03-21
MY135450A (en) 2008-04-30

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