Drilling composition, process for its preparation, and applications thereof

A process for preparation of a drilling composition, comprising the steps:

• A) preparation of an organic phase comprising components i. from about 20 wt. % to about 99.999 wt. %, based on the total weight of components i. and ii., of at least one linear or branched, cyclic or non-cyclic, saturated hydrocarbon, ii. from about 0.001 wt. % to about 25 wt. %, based on the total weight of components i. and ii., of at least one ester,
• B) preparation of an aqueous phase comprising from about 50 wt. % to 100 wt. % water, based on the total amount of aqueous phase,
• C) combination of the organic phase prepared in step A) with from 0 to 50 wt. %, based on the total weight of the composition, of the aqueous phase prepared in step B), and
• D) combination of at least one of the organic phase, the aqueous phase and the combination of the organic phase and the aqueous phase with from 0 to about 60 wt. %, based on the total weight of the composition, of at least one additive.