DE69111359D1 - Vernetzbare Zellulosederivate. - Google Patents

Vernetzbare Zellulosederivate.

Info

Publication number
DE69111359D1
DE69111359D1 DE69111359T DE69111359T DE69111359D1 DE 69111359 D1 DE69111359 D1 DE 69111359D1 DE 69111359 T DE69111359 T DE 69111359T DE 69111359 T DE69111359 T DE 69111359T DE 69111359 D1 DE69111359 D1 DE 69111359D1
Authority
DE
Germany
Prior art keywords
cellulose derivatives
crosslinkable cellulose
crosslinkable
derivatives
cellulose
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.)
Expired - Fee Related
Application number
DE69111359T
Other languages
English (en)
Other versions
DE69111359T2 (de
Inventor
Marlin D Holtmyer
Charles V Hunt
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.)
Halliburton Co
Original Assignee
Halliburton Co
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 Halliburton Co filed Critical Halliburton Co
Publication of DE69111359D1 publication Critical patent/DE69111359D1/de
Application granted granted Critical
Publication of DE69111359T2 publication Critical patent/DE69111359T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60Compositions for stimulating production by acting on the underground formation
    • C09K8/84Compositions based on water or polar solvents
    • C09K8/86Compositions based on water or polar solvents containing organic compounds
    • C09K8/88Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/887Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02Well-drilling compositions
    • C09K8/04Aqueous well-drilling compositions
    • C09K8/06Clay-free compositions
    • C09K8/08Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
    • C09K8/10Cellulose or derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/56Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
    • C09K8/57Compositions based on water or polar solvents
    • C09K8/575Compositions based on water or polar solvents containing organic compounds
    • C09K8/5751Macromolecular compounds
    • C09K8/5756Macromolecular compounds containing cross-linking agents
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S507/00Earth boring, well treating, and oil field chemistry
    • Y10S507/926Packer fluid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Graft Or Block Polymers (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
DE69111359T 1990-10-04 1991-10-04 Vernetzbare Zellulosederivate. Expired - Fee Related DE69111359T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/592,770 US5067565A (en) 1989-03-10 1990-10-04 Crosslinkable cellulose derivatives

Publications (2)

Publication Number Publication Date
DE69111359D1 true DE69111359D1 (de) 1995-08-24
DE69111359T2 DE69111359T2 (de) 1996-01-04

Family

ID=24371999

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69111359T Expired - Fee Related DE69111359T2 (de) 1990-10-04 1991-10-04 Vernetzbare Zellulosederivate.

Country Status (3)

Country Link
US (1) US5067565A (de)
EP (1) EP0479606B1 (de)
DE (1) DE69111359T2 (de)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363916A (en) * 1992-12-21 1994-11-15 Halliburton Company Method of gravel packing a well
US5304620A (en) * 1992-12-21 1994-04-19 Halliburton Company Method of crosslinking cellulose and guar derivatives for treating subterranean formations
US5346339A (en) * 1993-06-16 1994-09-13 Halliburton Company Pipeline cleaning process
US5413178A (en) * 1994-04-12 1995-05-09 Halliburton Company Method for breaking stabilized viscosified fluids
US5439057A (en) * 1994-04-29 1995-08-08 Halliburton Company Method for controlling fluid loss in high permeability formations
US5669447A (en) * 1996-04-01 1997-09-23 Halliburton Energy Services, Inc. Methods for breaking viscosified fluids
US5669446A (en) * 1996-04-01 1997-09-23 Halliburton Energy Services, Inc. Methods for breaking viscosified fluids
US5701956A (en) * 1996-04-17 1997-12-30 Halliburton Energy Services, Inc. Methods and compositions for reducing water production from subterranean formations
US5680900A (en) * 1996-07-23 1997-10-28 Halliburton Energy Services Inc. Method for enhancing fluid loss control in subterranean formation
US5762140A (en) * 1996-11-04 1998-06-09 Halliburton Energy Services, Inc. High viscosity low friction pressure loss well treating fluids and methods
US6667279B1 (en) 1996-11-13 2003-12-23 Wallace, Inc. Method and composition for forming water impermeable barrier
US5950731A (en) * 1997-11-05 1999-09-14 Halliburton Energy Services, Inc. Methods and compositions for breaking viscosified fluids
US5996694A (en) * 1997-11-20 1999-12-07 Halliburton Energy Service, Inc. Methods and compositions for preventing high density well completion fluid loss
US6213213B1 (en) 1999-10-08 2001-04-10 Halliburton Energy Services, Inc. Methods and viscosified compositions for treating wells
US6514610B2 (en) * 1999-12-13 2003-02-04 Fuji Spinning Co., Ltd. Method for manufacturing improved regenerated cellulose fiber
EP1292759B1 (de) * 1999-12-29 2004-09-22 TR Oil Services Limited Verfahren zur änderung der permeabilität von einer unterirdischen kohlenwasserstoff enthaltenden formation
US6408277B1 (en) * 2000-06-21 2002-06-18 Banter Limited System and method for automatic task prioritization
US6367550B1 (en) * 2000-10-25 2002-04-09 Halliburton Energy Service, Inc. Foamed well cement slurries, additives and methods
CA2443390C (en) * 2001-04-16 2009-12-15 Halliburton Energy Services, Inc. Methods of treating subterranean zones penetrated by well bores
US6823939B2 (en) 2002-05-15 2004-11-30 Halliburton Energy Services, Inc. Methods of treating subterranean zones penetrated by well bores
GB0219037D0 (en) * 2002-08-15 2002-09-25 Bp Exploration Operating Process
GB0229806D0 (en) * 2002-12-20 2003-01-29 Unilever Plc Fabric care composition
TW200422682A (en) * 2003-04-29 2004-11-01 Vanguard Int Semiconduct Corp Method for fabricating Bragg Grating optical elements and planar light circuits made thereof
BRPI0415764A (pt) 2003-11-28 2006-12-26 Eastman Chem Co interpolìmero, produto de reação, métodos para converter uma hidroxila, para preparar uma forma estável de um interpolìmero, para converter um álcool primário, e para tratar um mamìfero necessitado do mesmo, composições para revestimento e farmacêutica oral, dispersão de pigmento, e, artigo
US7093659B2 (en) * 2004-03-22 2006-08-22 Halliburton Energy Services, Inc. Controlling chlorite or hypochlorite break rate of well treatment fluids using magnesium or calcium ions
US7741424B2 (en) * 2004-09-29 2010-06-22 Kowa Co., Ltd. Phosphoric ester of cellulose derivative and metal adsorbent comprising the same
US7124822B2 (en) * 2004-11-02 2006-10-24 Halliburton Energy Services, Inc. Foamed completion fluids and methods
US8030249B2 (en) 2005-01-28 2011-10-04 Halliburton Energy Services, Inc. Methods and compositions relating to the hydrolysis of water-hydrolysable materials
US20060169182A1 (en) 2005-01-28 2006-08-03 Halliburton Energy Services, Inc. Methods and compositions relating to the hydrolysis of water-hydrolysable materials
US7264054B2 (en) * 2005-04-07 2007-09-04 Halliburton Energy Services, Inc. Fluids comprising zirconium isopropylamine crosslinking agents and associated methods
US7297665B2 (en) * 2005-04-07 2007-11-20 Halliburton Energy Services, Inc. Fluids comprising zirconium isopropylamine crosslinking agents and associated methods
US20070037713A1 (en) * 2005-08-12 2007-02-15 Halliburton Energy Services, Inc. Methods and compositions for reducing the viscosity of treatment fluids used in subterranean operations
US20070137529A1 (en) * 2005-12-21 2007-06-21 Jiten Chatterji Cationic cellulose ethers as fluid loss control additives in cement compositions and associated methods
US8590622B2 (en) * 2006-02-10 2013-11-26 Halliburton Energy Services, Inc. Organic acid compositions and methods of use in subterranean operations
US7122690B1 (en) 2006-02-14 2006-10-17 E. I. Du Pont De Nemours And Company Process to prepare metal complex of N,N-bis(2-hydroxyethyl)glycine
US7645725B2 (en) * 2006-04-14 2010-01-12 Halliburton Energy Services, Inc. Subterranean treatment fluids with improved fluid loss control
US7795185B2 (en) * 2006-07-27 2010-09-14 Halliburton Energy Services, Inc. Magnesium peroxide difunctional components for cellulose derivatives and associated methods
US7686080B2 (en) 2006-11-09 2010-03-30 Halliburton Energy Services, Inc. Acid-generating fluid loss control additives and associated methods
US8082994B2 (en) * 2006-12-05 2011-12-27 Halliburton Energy Services, Inc. Methods for enhancing fracture conductivity in subterranean formations
US8569214B2 (en) * 2007-05-30 2013-10-29 Halliburton Energy Services, Inc. Methods of using polysaccharide based cement additives
US8586508B2 (en) * 2007-05-30 2013-11-19 Halliburton Energy Services, Inc. Polysaccharide based cement additives
EA022202B1 (ru) * 2008-05-05 2015-11-30 Эм-Ай Эл.Эл.Си. Способы и скважинные флюиды на водной основе для уменьшения поглощения скважинного флюида и поглощения фильтрата
US7897545B2 (en) 2008-08-08 2011-03-01 Halliburton Energy Services, Inc. Fluid loss compositions and methods of use for subterranean operations
US8470747B2 (en) * 2008-10-20 2013-06-25 Halliburton Energy Services, Inc. Carboxylic acid and oxidizer clean-up compositions and associated methods of use in subterranean applications
US20100200230A1 (en) 2009-02-12 2010-08-12 East Jr Loyd Method and Apparatus for Multi-Zone Stimulation
US20100212906A1 (en) 2009-02-20 2010-08-26 Halliburton Energy Services, Inc. Method for diversion of hydraulic fracture treatments
US20100236784A1 (en) * 2009-03-20 2010-09-23 Horton Robert L Miscible stimulation and flooding of petroliferous formations utilizing viscosified oil-based fluids
US8932998B2 (en) 2009-10-05 2015-01-13 Baker Hughes Incorporated Methods for crosslinking water soluble polymers for use in well applications
US8770295B2 (en) 2011-07-26 2014-07-08 Halliburton Energy Services, Inc. Thermally stable, nonionic foaming agent for foam fracturing fluids
US9574437B2 (en) 2011-07-29 2017-02-21 Baker Hughes Incorporated Viscometer for downhole use
US20130048282A1 (en) 2011-08-23 2013-02-28 David M. Adams Fracturing Process to Enhance Propping Agent Distribution to Maximize Connectivity Between the Formation and the Wellbore
US8938380B2 (en) 2012-02-29 2015-01-20 Halliburton Energy Services, Inc. Methods, devices, and kits relating to the implementation of gelled fluids having a transient gel microstructure
US20130233559A1 (en) 2012-03-07 2013-09-12 Halliburton Energy Services, Inc. Surfactant Additives for Stimulating Subterranean Formation During Fracturing Operations
US9284476B2 (en) 2012-09-15 2016-03-15 Halliburton Energy Services, Inc. Treatment fluids comprising magnetic surfactants and methods relating thereto
US9879503B2 (en) 2012-09-19 2018-01-30 Halliburton Energy Services, Inc. Methods of treating long-interval and high-contrast permeability subterranean formations with diverting fluids
EP2885370A1 (de) 2012-10-30 2015-06-24 Halliburton Energy Services, Inc. Bohrflüssigkeitszusammensetzungen und verfahren zur verwendung in unterirdischen formationen
US9790416B2 (en) 2012-10-30 2017-10-17 Halliburton Energy Services, Inc. Drilling fluid compositions and methods for use thereof in subterranean formations
US9279077B2 (en) 2012-11-09 2016-03-08 Halliburton Energy Services, Inc. Methods of forming and placing proppant pillars into a subterranean formation
US9243183B2 (en) 2012-11-28 2016-01-26 Halliburton Energy Services, Inc. Methods of treating a subterranean formation with thermally activated suspending agents
US20140148369A1 (en) 2012-11-28 2014-05-29 Halliburton Energy Services, Inc. Methods of Treating a Subterranean Formation with Friction Reducing Clays
US9677386B2 (en) 2013-02-28 2017-06-13 Halliburton Energy Services, Inc. Methods of stabilizing weakly consolidated subterranean formation intervals
US8935957B2 (en) 2013-03-13 2015-01-20 Halliburton Energy Services, Inc. Methods of designing a drilling fluid having suspendable loss circulation material
US9027648B2 (en) 2013-03-18 2015-05-12 Halliburton Engergy Services, Inc. Methods of treating a subterranean formation with one-step furan resin compositions
US9487692B2 (en) 2013-03-19 2016-11-08 Halliburton Energy Services, Inc. Methods for consolidation treatments in subterranean formations using silicon compounds derived from furfuryl alcohols
US9862876B2 (en) 2013-04-22 2018-01-09 Halliburton Energy Services, Inc. Methods and compositions of treating subterranean formations with a novel resin system
US9494026B2 (en) 2013-04-22 2016-11-15 Halliburton Energy Services, Inc. Methods and compositions of treating subterranean formations with a novel resin system
US9475976B2 (en) 2013-05-20 2016-10-25 Halliburton Energy Services, Inc. Methods and compositions of improving wellbore cleanout treatments
US9695350B2 (en) 2013-05-31 2017-07-04 Halliburton Energy Services, Inc. Ampholyte polymeric compounds in subterranean applications
US9739132B2 (en) 2013-08-07 2017-08-22 Baker Hughes Incorporated Well treatment fluids and methods
US9562423B2 (en) 2013-08-27 2017-02-07 Halliburton Energy Services, Inc. Acid diversion treatments in injection wells using permeability modifiers
US9862875B2 (en) 2013-10-29 2018-01-09 Halliburton Energy Services, Inc. Drill-in fluids comprising nanoparticulates for consolidating subterranean formations while drilling
GB2535660B (en) 2013-10-30 2020-09-23 Halliburton Energy Services Inc Vulcanized oil and water swellable particulate composite compositions
AU2014405605B2 (en) 2014-09-02 2017-10-05 Halliburton Energy Services, Inc. Enhancing complex fracture networks in subterranean formations
US11009175B2 (en) 2014-12-18 2021-05-18 Curapipe System Ltd. Systems and method for sealing pipelines using a gel pig
WO2016098093A1 (en) * 2014-12-18 2016-06-23 Curapipe System Ltd. Systems and method for sealing pipelines using a gel pig
CN113429585B (zh) * 2021-07-07 2022-09-09 华纺股份有限公司 一种可以循环操作的制备纳米纤维素悬浮液的方法
US12018206B2 (en) 2021-12-07 2024-06-25 Lyondellbasell Advanced Polymers Inc. Drill-in fluid compositions and methods

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1162342B (de) * 1955-09-21 1964-02-06 Polymer Corp Verfahren zum Aufpfropfen von Monomeren auf Polysaccharide und Proteine oder deren Derivate
US2922768A (en) * 1956-04-12 1960-01-26 Mino Guido Process for polymerization of a vinylidene monomer in the presence of a ceric salt and an organic reducing agent
US3341483A (en) * 1961-08-30 1967-09-12 Yissum Res Dev Co Anionic graft polymerization of vinyl monomers on natural polyhydroxy compounds, their derivatives and on synthetic polyhydroxy polymers
GB1088672A (en) * 1963-10-03 1967-10-25 Ici Ltd Reactions of polymeric materials with vinyl phosphonium compounds
US3359224A (en) * 1966-07-06 1967-12-19 Scott Paper Co Thioated cellulosic/amylaceous substrate-ethylenically unsaturated monomer graft copolymer
US3488210A (en) * 1966-11-03 1970-01-06 Fmc Corp Cellulosic graft polymerization process with suppression of homopolymer formation
US3682632A (en) * 1968-06-14 1972-08-08 Ricoh Kk Copying material for use in electrophotography
US3640826A (en) * 1968-09-04 1972-02-08 Int Minerals & Chem Corp Graft copolymers of acrylic acid and polyhydroxy polymeric compounds for treating clays
US3607799A (en) * 1969-10-24 1971-09-21 Eastman Kodak Co Processes for grafting vinyl-type compounds to cellulosic materials
US3727688A (en) * 1972-02-09 1973-04-17 Phillips Petroleum Co Hydraulic fracturing method
US3845822A (en) * 1972-02-09 1974-11-05 Phillips Petroleum Co Plugging or sealing fractures in formations
US4135943A (en) * 1973-05-31 1979-01-23 Toyo Jozo Company, Ltd. Novel selective adsorbents
US3977954A (en) * 1973-08-22 1976-08-31 The Regents Of The University Of California Sensitized vapor phase photo-grafting of monomers onto surfaces
US3888312A (en) * 1974-04-29 1975-06-10 Halliburton Co Method and compositions for fracturing well formations
US3943996A (en) * 1974-10-30 1976-03-16 Calgon Corporation Low fluid loss cementing compositions
US3971440A (en) * 1975-09-10 1976-07-27 Phillips Petroleum Company Method for treating subterranean formations with cellulose ether-polyacrylamide aqueous gels
US4174309A (en) * 1976-07-26 1979-11-13 Mobil Oil Corporation Polyisocyanate cross-linked alkylene oxide-linear non-ionic polysaccharide reaction product
US4131576A (en) * 1977-12-15 1978-12-26 National Starch And Chemical Corporation Process for the preparation of graft copolymers of a water soluble monomer and polysaccharide employing a two-phase reaction system
JPS53130789A (en) * 1978-04-27 1978-11-15 Sanyo Chem Ind Ltd Preparation of water absorbing resin
US4324668A (en) * 1978-10-02 1982-04-13 Halliburton Company High viscosity acidic treating fluids and methods of forming and using the same
US4352902A (en) * 1980-01-08 1982-10-05 Kansai Paint Co., Ltd. Emulsion composition containing cellulose derivative
US4415703A (en) * 1981-01-13 1983-11-15 Daicel Chemical Industries, Ltd. Aqueous dispersion of a cellulose derivative
JPS5823847A (ja) * 1981-08-04 1983-02-12 Kansai Paint Co Ltd 繊維素誘導体含有エマルシヨン組成物
US4566976A (en) * 1981-12-14 1986-01-28 Nl Industries, Inc. Viscous heavy brines
US4540742A (en) * 1982-11-12 1985-09-10 The B. F. Goodrich Company Graft copolymers and process for their preparation
JPS59145210A (ja) * 1983-02-08 1984-08-20 Agency Of Ind Science & Technol 高分子多糖グラフト共重合体の合成法
US4555468A (en) * 1983-05-04 1985-11-26 Daicel Chemical Industries, Ltd. Photosensitive diazonium material with precoat of graft polymer prepared by grafting cellulose derivation with radical polymerizable monomer
US4552674A (en) * 1983-08-19 1985-11-12 Fmc Corporation Composition and method for treating a subterranean formation
US4540510A (en) * 1984-02-13 1985-09-10 Henkel Corporation Synergistic thickener mixtures of amps polymers with other thickeners
US4523010A (en) * 1984-06-15 1985-06-11 Hercules Incorporated Dihydroxypropyl mixed ether derivatives of cellulose
US4552668A (en) * 1984-07-30 1985-11-12 Fmc Corporation Oxidation of sulfides in polymer-thickened aqueous solution
US4552215A (en) * 1984-09-26 1985-11-12 Halliburton Company Method of gravel packing a well
JPH0613586B2 (ja) * 1984-10-17 1994-02-23 ダイセル化学工業株式会社 高吸収性素材
US4549907A (en) * 1984-12-20 1985-10-29 Celanese Corporation Thixotropic aqueous solutions containing a crosslinked polygalactomannan gum
US4690996A (en) * 1985-08-28 1987-09-01 National Starch And Chemical Corporation Inverse emulsions
US4982793A (en) * 1989-03-10 1991-01-08 Halliburton Company Crosslinkable cellulose derivatives

Also Published As

Publication number Publication date
EP0479606A1 (de) 1992-04-08
EP0479606B1 (de) 1995-07-19
DE69111359T2 (de) 1996-01-04
US5067565A (en) 1991-11-26

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