Patent · US Active

Surfactant additives used to retain producibility while drilling

US8148303B2 · kind B2 · utility

60Cited by

39References

27Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Ryan van Zanten · Katy, US
David Horton · Calgary, CA
Per-Bjarte Tanche-Larsen · Sandnes, NO

Key dates

Filing date	Jun 30, 2010
Grant date	Apr 3, 2012
Priority date	—
Expiry date	Aug 14, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S507/927
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A method comprises providing a drilling fluid comprising: an aqueous fluid; and a microemulsion surfactant; and drilling a well bore in a subterranean formation comprising an oleaginous fluid using the drilling fluid, wherein the microemulsion surfactant forms a microemulsion with the oleaginous fluid within the well bore. In accordance with the method, the subterranean formation has a retained producibility greater than about 50%.

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