Title:
【発明の名称】o/wエマルジョン型の水系掘削液における選ばれたエステル油の使用および生態学的許容性の改良された掘削液
Document Type and Number:
Japanese Patent JPH04505773
Kind Code:
A
Abstract:
The description relates to the use of water-emulsifiable esters of saturated and/or unsaturated carboxylic acids with up to 36 C atoms, which are liquid or at least plastically deformable at the working temperature and have flash-points of at least 80 DEG C, and mono and/or polyvalent alcohols as at least the major component of the dispersed oil phase of water-based O/W emulsion drilling fluids which are suitable for the environmentally acceptable exploitation of geological formations and may, if desired, contain insoluble, finely divided fillers to form water-based O/W emulsion drilling muds and/or further additives like emulsifiers, fluid-loss additives, wetting agents, alkaline reserves and/or aids for the inhibition of highly water-sensitive drilled rock.
Inventors:
Muller, Heinz
Herolt, Claus-Peter
Von tapavitsa, stephan
Fuse, Johann Friedrich
Herolt, Claus-Peter
Von tapavitsa, stephan
Fuse, Johann Friedrich
Application Number:
JP50692290A
Publication Date:
October 08, 1992
Filing Date:
May 07, 1990
Export Citation:
Assignee:
Henkel Commandet Gezelshaft Auf Akchen
International Classes:
C09K8/04; C09K8/26; (IPC1-7): C09K7/02
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)