NO940501L - - Google Patents

Info

Publication number
NO940501L
NO940501L NO940501A NO940501A NO940501L NO 940501 L NO940501 L NO 940501L NO 940501 A NO940501 A NO 940501A NO 940501 A NO940501 A NO 940501A NO 940501 L NO940501 L NO 940501L
Authority
NO
Norway
Prior art keywords
xanthan
prepared
culture medium
proteins
drilling
Prior art date
Application number
NO940501A
Other languages
English (en)
Other versions
NO940501D0 (no
Original Assignee
Inst Francais Du Petrole
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 Inst Francais Du Petrole filed Critical Inst Francais Du Petrole
Publication of NO940501D0 publication Critical patent/NO940501D0/no
Publication of NO940501L publication Critical patent/NO940501L/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00—Preparation of compounds containing saccharide radicals
    • C12P19/04—Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds
    • C12P19/06—Xanthan, i.e. Xanthomonas-type heteropolysaccharides
    • 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
    • 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
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/20—Bacteria; Culture media therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Biotechnology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Biomedical Technology (AREA)
  • Virology (AREA)
  • Medicinal Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

Et xantan-mostmateriale med forbedrede egenskaper blir fremstilt fra et kulturmedium omfattende minst én svovel kilde ved en svovelkonsentrasjon på høyst 60 mg/l av kulturmedium og minst en stamme av Xanthomonas, og en proteinkilde i et vektforhold av proteiner til xantan på mellom 0,05 og 2. Den fremstilte most, fortrinnsvis inneholdende celler, ved alkalisk pH og i nærvær av toverdige kationer og inneholdende proteiner, utgjør et materiale som har tiksotrope egenskaper.Dette materiale kan anvendes i et borefluid for boring av branner.
NO940501A 1993-02-16 1994-02-14 Materiale som inneholder xantan, samt fremgangsmåte for boring av en brönn NO940501D0 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9301819A FR2701490B1 (fr) 1993-02-16 1993-02-16 Procédé de production d'un mout de xanthane ayant une propriété améliorée, composition obtenue et application de la composition dans une boue de forage de puits.

Publications (2)

Publication Number Publication Date
NO940501D0 NO940501D0 (no) 1994-02-14
NO940501L true NO940501L (no) 1994-08-17

Family

ID=9444163

Family Applications (1)

Application Number Title Priority Date Filing Date
NO940501A NO940501D0 (no) 1993-02-16 1994-02-14 Materiale som inneholder xantan, samt fremgangsmåte for boring av en brönn

Country Status (4)

Country Link
EP (1) EP0611824A1 (no)
CA (1) CA2115806A1 (no)
FR (1) FR2701490B1 (no)
NO (1) NO940501D0 (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7892788B2 (en) 2005-02-07 2011-02-22 Basf Se Hydrophobin fusion products, production and use thereof
KR20080004555A (ko) 2005-03-31 2008-01-09 바스프 악티엔게젤샤프트 접착 촉진제로서의 폴리펩티드의 용도
CA2603374C (en) * 2005-04-01 2013-05-28 Basf Aktiengesellschaft Use of hydrophobin as a phase stabiliser
CN101228249B (zh) 2005-04-01 2011-11-30 巴斯福股份公司 含疏水蛋白的钻井液
DE102005027139A1 (de) 2005-06-10 2006-12-28 Basf Ag Neue Cystein-verarmte Hydrophobinfusionsproteine, deren Herstellung und Verwendung
DE102005048720A1 (de) 2005-10-12 2007-04-19 Basf Ag Verwendung von Proteinen als Antischaum-Komponente in Kraftstoffen
ES2374320T3 (es) 2006-08-15 2012-02-15 Basf Se Procedimiento para la producción de preparaciones de hidrofobina secas de flujo libre.
EP2860234A1 (de) * 2013-10-10 2015-04-15 Basf Se Verwendung eines chemisch modifizierten Polysaccharid-Protein-Blends als Additiv für Bohrspülungen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1512536A (en) * 1975-11-12 1978-06-01 Secr Defence Production of bacterial polysaccharides
US4400467A (en) * 1980-07-14 1983-08-23 Standard Oil Company (Indiana) Process of using xanthomonas campestris NRRL B-12075 and NRRL B-12074 for making heteropolysaccharide
GB8622032D0 (en) * 1986-09-12 1986-10-22 Shell Int Research Aqueous polysaccharide compositions

Also Published As

Publication number Publication date
CA2115806A1 (fr) 1994-08-17
FR2701490B1 (fr) 1995-04-14
NO940501D0 (no) 1994-02-14
EP0611824A1 (fr) 1994-08-24
FR2701490A1 (fr) 1994-08-19

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