DK174988B1 - Mineraloliefri blandinger til frigørelse af borestænger, der har sat sig fast - Google Patents

Mineraloliefri blandinger til frigørelse af borestænger, der har sat sig fast Download PDF

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Publication number
DK174988B1
DK174988B1 DK198801385A DK138588A DK174988B1 DK 174988 B1 DK174988 B1 DK 174988B1 DK 198801385 A DK198801385 A DK 198801385A DK 138588 A DK138588 A DK 138588A DK 174988 B1 DK174988 B1 DK 174988B1
Authority
DK
Denmark
Prior art keywords
mixtures
fatty acid
alkyl
weight
radical
Prior art date
Application number
DK198801385A
Other languages
Danish (da)
English (en)
Other versions
DK138588A (da
DK138588D0 (da
Inventor
Claus-Peter Herold
Stephan Von Tapavicza
Heinz Mueller
Original Assignee
Cognis Deutschland Gmbh
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 Cognis Deutschland Gmbh filed Critical Cognis Deutschland Gmbh
Publication of DK138588D0 publication Critical patent/DK138588D0/da
Publication of DK138588A publication Critical patent/DK138588A/da
Application granted granted Critical
Publication of DK174988B1 publication Critical patent/DK174988B1/da

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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
    • C09K8/02—Well-drilling compositions
    • 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
    • Y10S507/94—Freeing stuck object from wellbore

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)
  • Lubricants (AREA)
  • Earth Drilling (AREA)
DK198801385A 1988-01-20 1988-03-14 Mineraloliefri blandinger til frigørelse af borestænger, der har sat sig fast DK174988B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3801476A DE3801476A1 (de) 1988-01-20 1988-01-20 Zusammensetzungen zur befreiung festgesetzter bohrgestaenge
DE3801476 1988-01-20

Publications (3)

Publication Number Publication Date
DK138588D0 DK138588D0 (da) 1988-03-14
DK138588A DK138588A (da) 1989-07-21
DK174988B1 true DK174988B1 (da) 2004-04-13

Family

ID=6345593

Family Applications (1)

Application Number Title Priority Date Filing Date
DK198801385A DK174988B1 (da) 1988-01-20 1988-03-14 Mineraloliefri blandinger til frigørelse af borestænger, der har sat sig fast

Country Status (8)

Country Link
US (1) US4964615A (no)
EP (1) EP0324887B1 (no)
AT (1) AT395857B (no)
BR (1) BR8802272A (no)
CA (1) CA1317099C (no)
DE (2) DE3801476A1 (no)
DK (1) DK174988B1 (no)
NO (1) NO175682C (no)

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Also Published As

Publication number Publication date
NO175682B (no) 1994-08-08
NO881138D0 (no) 1988-03-15
DE3880814D1 (de) 1993-06-09
DE3801476A1 (de) 1989-08-03
DK138588A (da) 1989-07-21
BR8802272A (pt) 1989-12-05
NO881138L (no) 1989-07-21
EP0324887A2 (de) 1989-07-26
AT395857B (de) 1993-03-25
CA1317099C (en) 1993-05-04
ATA9989A (de) 1992-08-15
NO175682C (no) 1994-11-16
EP0324887B1 (de) 1993-05-05
US4964615A (en) 1990-10-23
DK138588D0 (da) 1988-03-14
EP0324887A3 (en) 1990-12-19

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