Drilling composition, process for its preparation, and applications thereof

US9982182B2 · kind B2 · utility

Inventors

• Heinz-Joachim Muller · Burgkirchen an der Alz, DE
• Nadja Herzog · Korschenbroich, DE
• Diana Maker · Mettmann, DE
• Michael Fefer · Whitby, CA
• Jun Liu · South San Francisco, US

Key dates

• Filing date: Jul 26, 2017
• Grant date: May 29, 2018
• Expiry date: Jul 26, 2037

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B43/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

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.