NOVEL METHOD FOR DRILLING GROUND CAVITIES, NOVEL ALKYLPOLYGLYCOSIDE-BASED COMPOSITIONS AND THEIR USE AS A LUBRICANT AGENT IN THE PREPARATION OF AQUEOUS DRILLING FLUIDS

摘要

A method for drilling cavities in underground formations in which drill cuttings are removed by injecting an aqueous composition (C) into the drill hole. Composition (C) includes between 1 and 65 wt. % salt(s), between 0.05 and 2 wt. % anti-foaming agent(s), between 13 and 97.95 wt. % water, and between 1 and 20 wt. % composition (C2). Composition (C2) includes, optionally, between 0.1 and 30 wt. % auxiliary agent(s), between 0 and 100 wt. % of a surfactant system of one or more compositions (C1) according to R1—O-(G1)p-H, R1 being an aliphatic radical including between 4 and 16 carbon atoms, G1 being a reducing sugar residue and 1.05≤p≤5, and between 0 and 50 wt. % alcohol(s) according to R1—OH, R1 being an aliphatic radical including between 4 and 16 carbon atoms. Also, compositions (C2) and their use as a lubricant for producing an aqueous drilling mud.