EA201070230A1 - Разжижитель замедленного действия - Google Patents

Разжижитель замедленного действия

Info

Publication number
EA201070230A1
EA201070230A1 EA201070230A EA201070230A EA201070230A1 EA 201070230 A1 EA201070230 A1 EA 201070230A1 EA 201070230 A EA201070230 A EA 201070230A EA 201070230 A EA201070230 A EA 201070230A EA 201070230 A1 EA201070230 A1 EA 201070230A1
Authority
EA
Eurasian Patent Office
Prior art keywords
wellbore
pumping
fluid containing
well fluid
acid source
Prior art date
Application number
EA201070230A
Other languages
English (en)
Other versions
EA018368B1 (ru
Inventor
Бетишиа Б. Прасек
Рауль Наварро
Марк Люстер
Эндрю Г. К. Джоунс
Латоша Мур
Original Assignee
Эм-Ай ЭлЭлСи
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 Эм-Ай ЭлЭлСи filed Critical Эм-Ай ЭлЭлСи
Publication of EA201070230A1 publication Critical patent/EA201070230A1/ru
Publication of EA018368B1 publication Critical patent/EA018368B1/ru

Links

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
    • C09K8/72—Eroding chemicals, e.g. acids
    • C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
    • 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
    • C09K2208/26—Gel breakers other than bacteria or enzymes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Processing Of Solid Wastes (AREA)
  • Water Treatment By Sorption (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Раскрывают способ, который включает закачивание насосом первой скважинной жидкости, содержащей разлагаемый под действием окисления полимер, в ствол скважины через подземный пласт; закачивание второй скважинной жидкости, содержащей рН-активируемый окислительный разжижитель, в ствол скважины; закачивание третьей скважинной жидкости, содержащей источник кислоты замедленного действия, в ствол скважины и обеспечение возможности источнику кислоты замедленного действия подкислить по меньшей мере часть рабочей среды в стволе скважины до рН менее чем 7, с тем чтобы активировать рН-активируемый окислительный разжижитель при более низком рН и разложить разлагаемые под действием окисления полимеры.
EA201070230A 2007-08-03 2008-07-31 Способ введения и удаления из ствола скважины фильтрационной корки EA018368B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95379507P 2007-08-03 2007-08-03
PCT/US2008/071740 WO2009020829A1 (en) 2007-08-03 2008-07-31 Delayed breaker

Publications (2)

Publication Number Publication Date
EA201070230A1 true EA201070230A1 (ru) 2010-06-30
EA018368B1 EA018368B1 (ru) 2013-07-30

Family

ID=40341652

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201070230A EA018368B1 (ru) 2007-08-03 2008-07-31 Способ введения и удаления из ствола скважины фильтрационной корки

Country Status (10)

Country Link
US (1) US8387696B2 (ru)
EP (1) EP2185792B1 (ru)
AR (2) AR067805A1 (ru)
AU (1) AU2008284101B2 (ru)
BR (1) BRPI0815074A2 (ru)
CA (1) CA2694970C (ru)
EA (1) EA018368B1 (ru)
MX (1) MX348803B (ru)
NO (1) NO2185792T3 (ru)
WO (1) WO2009020829A1 (ru)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
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US8985211B2 (en) 2009-03-18 2015-03-24 M-I L.L.C. Well treatment fluid
EP2678401A1 (en) 2011-02-22 2014-01-01 M.I L.L, C. Chelate compositions and methods and fluids for use in oilfield operations
AU2011372058A1 (en) * 2011-06-27 2014-01-16 M-I L.L.C. Breaker fluids for wellbore fluids and methods of use
US9970246B2 (en) 2012-04-09 2018-05-15 M-I L.L.C. Triggered heating of wellbore fluids by carbon nanomaterials
US9803130B2 (en) 2012-10-25 2017-10-31 Schlumberger Technology Corporation Methods of activating enzyme breakers
US9399729B2 (en) 2013-04-04 2016-07-26 Halliburton Energy Services, Inc. Wellbore servicing materials and methods of making and using same
AU2013405023B2 (en) 2013-11-07 2017-04-13 Halliburton Energy Services, Inc. Dual breaker system for reducing formation damage during fracturing
US10047269B2 (en) * 2014-09-18 2018-08-14 Halliburton Energy Services, Inc. Treatment fluids comprising finger millet and methods of use
US10308860B2 (en) * 2015-06-15 2019-06-04 Ethical Solutions Llc Compositions and methods for filter cake removal
WO2017079210A1 (en) * 2015-11-02 2017-05-11 Board Of Regents, The University Of Texas System Acid soluble diverting agents for refracturing applications
US10767102B2 (en) * 2016-01-28 2020-09-08 Halliburton Energy Services, Inc. Clean gravel pack fluid composition and method for sand control applications
WO2017142836A1 (en) * 2016-02-15 2017-08-24 Shell Oil Company Pill breakers comprising thermally generated acids

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Publication number Priority date Publication date Assignee Title
US3785438A (en) 1972-02-24 1974-01-15 Chem Additives Co Methods for minimizing fluid loss of wellbore fluids
US3872018A (en) 1972-11-15 1975-03-18 Oil Base Water loss additive for sea water mud comprising an alkaline earth oxide or hydroxide, starch and polyvinyl alcohol
US4561985A (en) * 1982-06-28 1985-12-31 Union Carbide Corporation Hec-bentonite compatible blends
US5226479A (en) * 1992-01-09 1993-07-13 The Western Company Of North America Fracturing fluid having a delayed enzyme breaker
US5238065A (en) * 1992-07-13 1993-08-24 Texas United Chemical Corporation Process and composition to enhance removal of polymer-containing filter cakes from wellbores
GB9308884D0 (en) 1993-04-29 1993-06-16 Archaeus Tech Group Acidising oil reservoirs
US5607905A (en) * 1994-03-15 1997-03-04 Texas United Chemical Company, Llc. Well drilling and servicing fluids which deposit an easily removable filter cake
GB9411269D0 (en) * 1994-06-06 1994-07-27 Archaeus Tech Group Delayed acid for gel breaking
US5437331A (en) * 1994-08-24 1995-08-01 The Western Company Of North America Method for fracturing subterranean formations using controlled release breakers and compositions useful therein
US5813468A (en) * 1996-12-26 1998-09-29 Abb Vetco Gray Inc. Dual casing hanger
GB9906484D0 (en) * 1999-03-19 1999-05-12 Cleansorb Ltd Method for treatment of underground reservoirs
GB9915354D0 (en) * 1999-07-02 1999-09-01 Cleansorb Ltd Method for treatment of underground reservoirs
US6818594B1 (en) * 1999-11-12 2004-11-16 M-I L.L.C. Method for the triggered release of polymer-degrading agents for oil field use
US6861394B2 (en) * 2001-12-19 2005-03-01 M-I L.L.C. Internal breaker
US6986391B2 (en) * 2002-11-26 2006-01-17 Halliburton Energy Services, Inc. Methods of fracturing subterranean zones penetrated by well bores and fracturing fluids therefor
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US7195068B2 (en) * 2003-12-15 2007-03-27 Halliburton Energy Services, Inc. Filter cake degradation compositions and methods of use in subterranean operations
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Also Published As

Publication number Publication date
US20100270017A1 (en) 2010-10-28
AU2008284101A1 (en) 2009-02-12
NO2185792T3 (ru) 2018-06-16
MX348803B (es) 2017-06-28
MX2010001161A (es) 2010-03-29
BRPI0815074A2 (pt) 2015-02-03
CA2694970A1 (en) 2009-02-12
EP2185792A1 (en) 2010-05-19
US8387696B2 (en) 2013-03-05
WO2009020829A1 (en) 2009-02-12
EA018368B1 (ru) 2013-07-30
AR067805A1 (es) 2009-10-21
EP2185792B1 (en) 2018-01-17
CA2694970C (en) 2013-09-24
AU2008284101B2 (en) 2012-07-05
EP2185792A4 (en) 2011-05-04
AR093860A2 (es) 2015-06-24

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM BY KG MD TJ TM

MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AZ KZ RU