Mixture for preparation of invert emulsion drilling mud and emulsion drilling mud its use invert emulsion drilling mud and / or it, that of emulsion drilling

摘要

Mixt. contg. acetal, oleophilic alcohol and/or oleophilic ester, suitable for the mfr. of invert emulsion borehole flushing fluids is new. Also new are (invert) emulsion borehole flushing fluids contg. the above mixt.