The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Mar. 24, 2008
Wayne W. Frenier, Tulsa, OK (US);
Diankui Fu, Tyumen, RU;
Stephen Nigel Davies, Doha, QA;
Murtaza Ziauddin, Abu Dhabi, AE;
Zhijun Xiao, Sugar Land, TX (US);
Bruno Lecerf, Novosibirsk, RU;
Helene Bulte, Viroflay, FR;
Michael J. Fuller, Houston, TX (US);
Wayne W. Frenier, Tulsa, OK (US);
Diankui Fu, Tyumen, RU;
Stephen Nigel Davies, Doha, QA;
Murtaza Ziauddin, Abu Dhabi, AE;
Zhijun Xiao, Sugar Land, TX (US);
Bruno Lecerf, Novosibirsk, RU;
Helene Bulte, Viroflay, FR;
Michael J. Fuller, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F) by weight of the fluid and from 2% or less of sodium (Na) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.