| 摘要 |
The present invention relates to a drilling composition comprising
I) 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,
II) from 0 to about 50 wt.%, based on the total weight of the composition, of water or aqueous phase,
III) from 0 to about 60 wt.%, based on the total weight of the composition, of at least one additive,
wherein the sum of the weight components I) to III) is 100 wt.%,
to a process for preparation of a drilling composition, to uses of a drilling composition, to a drilling system, to a process for making a borehole, to a process for conveying cuttings, to a process for treating a drill head, to a process for production of at least one of oil and gas. |
