DK442781A - Fremgangsmaade til fremstilling af organiske forbindlser - Google Patents

Fremgangsmaade til fremstilling af organiske forbindlser

Info

Publication number
DK442781A
DK442781A DK442781A DK442781A DK442781A DK 442781 A DK442781 A DK 442781A DK 442781 A DK442781 A DK 442781A DK 442781 A DK442781 A DK 442781A DK 442781 A DK442781 A DK 442781A
Authority
DK
Denmark
Prior art keywords
oil
procedure
organic compounds
making organic
amide
Prior art date
Application number
DK442781A
Other languages
Danish (da)
English (en)
Inventor
D Frost
Original Assignee
Bw Mud Ltd
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 Bw Mud Ltd filed Critical Bw Mud Ltd
Publication of DK442781A publication Critical patent/DK442781A/da

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
    • C09K8/02—Well-drilling compositions
    • C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK442781A 1980-10-07 1981-10-06 Fremgangsmaade til fremstilling af organiske forbindlser DK442781A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8032277 1980-10-07

Publications (1)

Publication Number Publication Date
DK442781A true DK442781A (da) 1982-04-08

Family

ID=10516526

Family Applications (1)

Application Number Title Priority Date Filing Date
DK442781A DK442781A (da) 1980-10-07 1981-10-06 Fremgangsmaade til fremstilling af organiske forbindlser

Country Status (8)

Country Link
EP (1) EP0049484B1 (de)
JP (1) JPS57131277A (de)
AT (1) ATE10855T1 (de)
AU (1) AU7607781A (de)
DE (1) DE3167858D1 (de)
DK (1) DK442781A (de)
ES (1) ES8306501A1 (de)
NO (1) NO813378L (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400164A1 (de) * 1983-01-14 1984-07-19 Sandoz-Patent-GmbH, 7850 Lörrach Fluessigkeitsverluste vermindernde additive fuer bohrlochbearbeitungsfluessigkeiten
US4597878A (en) * 1984-12-31 1986-07-01 Venture Innovations, Inc. Polyphenolic acid adducts
GB2181330B (en) * 1985-09-26 1990-05-09 Toshiba Kk X-ray inspection apparatus
GB8621086D0 (en) * 1986-09-01 1986-10-08 Sandoz Ltd Organic compounds
DE3715574A1 (de) * 1987-05-09 1988-11-24 Hughes Tool Co Germany Gmbh Zusatzmittel fuer bohrfluessigkeiten, verfahren zu seiner herstellung und verwendung
GB8913820D0 (en) * 1989-06-15 1989-08-02 Sandoz Products Ltd Improvements in or relating to organic compounds
WO1995030722A1 (en) * 1994-05-04 1995-11-16 The Burwood Corporation Limited Surfactant composition
CN102911646B (zh) * 2012-09-19 2016-09-07 中国石油集团长城钻探工程有限公司 一种油基钻井液用降滤失剂及其制备方法
CN102965083B (zh) * 2012-11-12 2016-01-13 孟州市德葛净水材料有限公司 钻井液用复合树脂抗高温防塌降失水剂
CN111500269B (zh) * 2020-06-08 2022-06-28 保定市三拓化工产品有限公司 一种钻井液降滤失剂
CN115403785B (zh) * 2021-05-28 2024-01-05 中石化石油工程技术服务有限公司 一种腐植酸降滤失剂及其制备方法和应用

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3494865A (en) * 1966-04-01 1970-02-10 Nat Lead Co Lignite products and compositions thereof
US3775447A (en) * 1966-04-01 1973-11-27 Nat Lead Co Lignite products and compositions thereof
US3671427A (en) * 1970-01-15 1972-06-20 Nl Industries Inc Lignite products and compositions thereof

Also Published As

Publication number Publication date
DE3167858D1 (en) 1985-01-31
AU7607781A (en) 1982-09-23
ES506011A0 (es) 1983-06-01
EP0049484A1 (de) 1982-04-14
EP0049484B1 (de) 1984-12-19
ES8306501A1 (es) 1983-06-01
JPS57131277A (en) 1982-08-14
NO813378L (no) 1982-04-13
ATE10855T1 (de) 1985-01-15

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment