Patent · US Active

Methods for reducing fluid loss of a viscoelastic surfactant gel into a subterranean formation

US8980800B2 · kind B2 · utility

1Cited by

17References

20Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Brian B. Beall · Spring, US
Richard S. Wheeler · Ralls, US
D V Satyanarayana Gupta · Diemelstraße, US

Key dates

Filing date	Dec 8, 2008
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Apr 5, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/30
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Methods and compositions of treating formations using viscoelastic treatment fluids are provided that reduce the amount of fluid loss to the formations due to the lack of polymer backbone in the viscoelastic treatment fluids. The methods and compositions of treating formations include a fluid loss additive that includes a copolymer that includes a hydrophilic monomeric unit and a first anchoring monomeric unit.

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