Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Patent
1993-06-29
1994-06-07
Geist, Gary
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C09K 706
Patent
active
053189540
ABSTRACT:
The invention describes the use of selected esters, fluid at room temperature and with flash points above 80.degree. C., of C.sub.1-5 -monocarboxylic acids and mon- and/or polyfunctional alcohols as the oil phase, or a component of the oil phase of invert drilling muds which are suitable for environment-friendly development of petroleum or natural gas deposits and contain in a continuous oil phase a dispersed aqueous phase together with emulsifiers, weighting agents, fluid-loss additives and preferably further conventional additives. In a further embodiment the invention relates to invert drilling fluids of the type described, which are characterized in that the oil phase contains esters from C.sub.1-5 -monocarboxylic acids with mono- and/or polyfunctional alcohols preferably in admixture with other components from the class of ecologically acceptable compounds.
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Burbach Frank
Herold Claus-Peter
Mueller Heinz
Neuss Michael
von Tapavicza Stephan
Geist Gary
Grandmaison Real J.
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Szoke Ernest G.
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