NO915104L - Lavtemperaturdegradering av galakto-forbindelser - Google Patents

Lavtemperaturdegradering av galakto-forbindelser

Info

Publication number
NO915104L
NO915104L NO91915104A NO915104A NO915104L NO 915104 L NO915104 L NO 915104L NO 91915104 A NO91915104 A NO 91915104A NO 915104 A NO915104 A NO 915104A NO 915104 L NO915104 L NO 915104L
Authority
NO
Norway
Prior art keywords
galacto
compounds
low temperature
switch
temperature degradation
Prior art date
Application number
NO91915104A
Other languages
English (en)
Other versions
NO915104D0 (no
Inventor
Jeffrey C Dawson
Original Assignee
Bj Services 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 Bj Services Co filed Critical Bj Services Co
Publication of NO915104D0 publication Critical patent/NO915104D0/no
Publication of NO915104L publication Critical patent/NO915104L/no

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
    • C09K8/66—Compositions based on water or polar solvents
    • C09K8/68—Compositions based on water or polar solvents containing organic compounds
    • C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Framgangsmåte for bryting av en underjordisk formasjon der en hydratiserbar polymer, en kryssbinder og en gelbryter er kombinert for å danne en geilet bruddvæske. Bruddvæskens pH er initielt hevet til over 9.0 for å deaktivere bryteren. En pH-regulerende substans tilsettes bruddvæsken som langsomt hydrolyseres for å produsere en syre, for derved å slippe bryteren løs for å produsere en styrt brytning av polymergelen.
NO91915104A 1991-01-14 1991-12-27 Lavtemperaturdegradering av galakto-forbindelser NO915104L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/640,957 US5067566A (en) 1991-01-14 1991-01-14 Low temperature degradation of galactomannans

Publications (2)

Publication Number Publication Date
NO915104D0 NO915104D0 (no) 1991-12-27
NO915104L true NO915104L (no) 1992-07-15

Family

ID=24570364

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91915104A NO915104L (no) 1991-01-14 1991-12-27 Lavtemperaturdegradering av galakto-forbindelser

Country Status (4)

Country Link
US (1) US5067566A (no)
CA (1) CA2057597C (no)
GB (1) GB2251640B (no)
NO (1) NO915104L (no)

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Also Published As

Publication number Publication date
CA2057597A1 (en) 1992-07-15
GB2251640B (en) 1994-08-31
CA2057597C (en) 1997-09-30
NO915104D0 (no) 1991-12-27
GB2251640A (en) 1992-07-15
GB9200052D0 (en) 1992-02-26
US5067566A (en) 1991-11-26

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