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GB1416013A - Well drilling fluid and method - Google Patents

Well drilling fluid and method

Info

Publication number
GB1416013A
GB1416013A GB938674A GB938674A GB1416013A GB 1416013 A GB1416013 A GB 1416013A GB 938674 A GB938674 A GB 938674A GB 938674 A GB938674 A GB 938674A GB 1416013 A GB1416013 A GB 1416013A
Authority
GB
United Kingdom
Prior art keywords
drilling fluid
well drilling
heteropolysaccharide
kelco
cultural
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
Application number
GB938674A
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.)
Kelco Co
Original Assignee
Kelco 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 Kelco Co filed Critical Kelco Co
Priority to GB938674A priority Critical patent/GB1416013A/en
Publication of GB1416013A publication Critical patent/GB1416013A/en
Expired legal-status Critical Current

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
    • C09K8/14—Clay-containing compositions
    • C09K8/18—Clay-containing compositions characterised by the organic compounds
    • C09K8/20—Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
    • C09K8/206—Derivatives of other natural products, e.g. cellulose, starch, sugars

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

1416013 Bacterial heteropolysaccharide KELCO CO 1 March 1974 9386/74 Heading C3U [Also in Division E1] A heteropolysaccharide is produced by cultivation of soil bacteria identified by reference to its cultural and morphological characteristics, preferably using the strain ATCC 21423 on a conventional nutrient medium.
GB938674A 1974-03-01 1974-03-01 Well drilling fluid and method Expired GB1416013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB938674A GB1416013A (en) 1974-03-01 1974-03-01 Well drilling fluid and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB938674A GB1416013A (en) 1974-03-01 1974-03-01 Well drilling fluid and method

Publications (1)

Publication Number Publication Date
GB1416013A true GB1416013A (en) 1975-12-03

Family

ID=9870972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB938674A Expired GB1416013A (en) 1974-03-01 1974-03-01 Well drilling fluid and method

Country Status (1)

Country Link
GB (1) GB1416013A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637913A1 (en) * 1988-10-19 1990-04-20 Rhone Poulenc Chimie PROCESS FOR THE PRODUCTION OF POLYSACCHARIDES BY FERMENTATION OF A HYDROCARBONATED SOURCE USING MICROORGANISMS
FR2714420A1 (en) * 1993-12-24 1995-06-30 Inst Francais Du Petrole Method using gellan as a filtrate reducer for water-based drilling fluids

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637913A1 (en) * 1988-10-19 1990-04-20 Rhone Poulenc Chimie PROCESS FOR THE PRODUCTION OF POLYSACCHARIDES BY FERMENTATION OF A HYDROCARBONATED SOURCE USING MICROORGANISMS
EP0365390A1 (en) * 1988-10-19 1990-04-25 Rhone-Poulenc Chimie Process for the production of polysaccharides by fermentation of a carbon source using microorganisms
FR2714420A1 (en) * 1993-12-24 1995-06-30 Inst Francais Du Petrole Method using gellan as a filtrate reducer for water-based drilling fluids
EP0662563A1 (en) * 1993-12-24 1995-07-12 Institut Français du Pétrole Method using gellan for reducing the filtrate of aqueous drilling fluids
US5744428A (en) * 1993-12-24 1998-04-28 Institut Francais Du Petrole Process using gellan as a filtrate reducer for water-based drilling fluids

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee