Agent de stabilisation du schiste de qualite alimentaire, biodegradable, pour utilisation dans les puits de petrole et de gaz

Biodegradable, food grade shale stabilizer for use in oil and gas wells

Abstract

A method of using an aqueous-based drilling fluid comprises: introducing the drilling fluid into a wellbore, wherein the wellbore penetrates a subterranean formation, wherein the drilling fluid comprises: (A) a base fluid, wherein the base fluid comprises water; and (B) a shale stabilizer additive, wherein the shale stabilizer additive: (i) is made from a protein; (ii) is food grade; and (iii) provides a shale retention of at least 85% for the subterranean formation.

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