Patent · US Active

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

US10294402B2 · kind B2 · utility

0Cited by

7References

21Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Garima Misra · Pune, IN
Anita Gantepla · Davanagere, IN

Key dates

Filing date	Jan 9, 2014
Grant date	May 21, 2019
Priority date	—
Expiry date	Feb 11, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/12
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.