ESTER-CONTAINING LUBRICATING COMPOSITION, USE OF SAID COMPOSITION AND PIT FLUID CONTAINING THE COMPOSITION

摘要

The present invention relates to an optimized lubricating composition comprising, in a useful amount, an ester and a fatty acid. In a variant, the composition also comprises a tertiary amine, for example triethanolamine. The invention also relates to a well fluid comprising the lubricating composition according to the invention. The invention also relates to a use of the composition for controlling the lubricating capacity of a water-based fluid.