DE69828961D1 - Methoden und materialien zum xanthanabbau - Google Patents

Methoden und materialien zum xanthanabbau

Info

Publication number
DE69828961D1
DE69828961D1 DE69828961T DE69828961T DE69828961D1 DE 69828961 D1 DE69828961 D1 DE 69828961D1 DE 69828961 T DE69828961 T DE 69828961T DE 69828961 T DE69828961 T DE 69828961T DE 69828961 D1 DE69828961 D1 DE 69828961D1
Authority
DE
Germany
Prior art keywords
xanthan
removal
materials
methods
xanthan removal
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
DE69828961T
Other languages
English (en)
Other versions
DE69828961T2 (de
Inventor
M Tjon-Joe-Pin
Alana Carr
Bing Yang
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.)
BJ Services Co USA
Original Assignee
BJ Services Co USA
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 BJ Services Co USA filed Critical BJ Services Co USA
Publication of DE69828961D1 publication Critical patent/DE69828961D1/de
Application granted granted Critical
Publication of DE69828961T2 publication Critical patent/DE69828961T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/86—Compositions based on water or polar solvents containing organic compounds
    • C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
    • C09K8/90—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/38—Polysaccharides or derivatives thereof
    • 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
    • C09K8/08—Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
    • 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
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/88—Lyases (4.)
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Y—ENZYMES
    • C12Y302/00—Hydrolases acting on glycosyl compounds, i.e. glycosylases (3.2)
    • C12Y302/01—Glycosidases, i.e. enzymes hydrolysing O- and S-glycosyl compounds (3.2.1)
    • C12Y302/01004—Cellulase (3.2.1.4), i.e. endo-1,4-beta-glucanase
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Y—ENZYMES
    • C12Y402/00—Carbon-oxygen lyases (4.2)
    • C12Y402/02—Carbon-oxygen lyases (4.2) acting on polysaccharides (4.2.2)
    • C12Y402/02012—Xanthan lyase (4.2.2.12)
    • 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
    • Y10S507/921—Specified breaker component for emulsion or gel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Materials Engineering (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Wood Science & Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Ceramic Engineering (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Medicinal Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Processing Of Solid Wastes (AREA)
  • Enzymes And Modification Thereof (AREA)
DE69828961T 1997-03-07 1998-03-06 Methoden und materialien zum xanthanabbau Expired - Fee Related DE69828961T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US813064 1997-03-07
US08/813,064 US6110875A (en) 1997-03-07 1997-03-07 Methods and materials for degrading xanthan
PCT/US1998/004385 WO1998039397A1 (en) 1997-03-07 1998-03-06 Methods and materials for degrading xanthan

Publications (2)

Publication Number Publication Date
DE69828961D1 true DE69828961D1 (de) 2005-03-17
DE69828961T2 DE69828961T2 (de) 2006-01-19

Family

ID=25211365

Family Applications (2)

Application Number Title Priority Date Filing Date
DE0975708T Pending DE975708T1 (de) 1997-03-07 1998-03-06 Methoden und materialien zur xanthanabbau
DE69828961T Expired - Fee Related DE69828961T2 (de) 1997-03-07 1998-03-06 Methoden und materialien zum xanthanabbau

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE0975708T Pending DE975708T1 (de) 1997-03-07 1998-03-06 Methoden und materialien zur xanthanabbau

Country Status (8)

Country Link
US (1) US6110875A (de)
EP (1) EP0975708B1 (de)
AU (1) AU6688898A (de)
CA (1) CA2283157C (de)
DE (2) DE975708T1 (de)
DK (1) DK0975708T3 (de)
NO (1) NO328817B1 (de)
WO (1) WO1998039397A1 (de)

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Also Published As

Publication number Publication date
EP0975708A1 (de) 2000-02-02
NO328817B1 (no) 2010-05-18
EP0975708A4 (de) 2002-10-23
EP0975708B1 (de) 2005-02-09
DE975708T1 (de) 2000-06-29
DE69828961T2 (de) 2006-01-19
NO994319D0 (no) 1999-09-06
CA2283157C (en) 2009-12-15
NO994319L (no) 1999-11-05
CA2283157A1 (en) 1998-09-11
DK0975708T3 (da) 2005-05-23
US6110875A (en) 2000-08-29
WO1998039397A1 (en) 1998-09-11
AU6688898A (en) 1998-09-22

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