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:
Mar. 17, 2015
Filed:
Jul. 28, 2011
Applicants:
Sandra L. Berry, Tomball, TX (US);
Joel L. Boles, Spring, TX (US);
Kay E. Cawiezel, Fulshear, TX (US);
Kern L. Smith, The Woodlands, TX (US);
Inventors:
Sandra L. Berry, Tomball, TX (US);
Joel L. Boles, Spring, TX (US);
Kay E. Cawiezel, Fulshear, TX (US);
Kern L. Smith, The Woodlands, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/00 (2006.01); C09K 8/74 (2006.01);
U.S. Cl.
CPC ...
C09K 8/74 (2013.01);
Abstract
A well servicing fluid is formulated by combining ingredients comprising: an aqueous based fluid comprising sulfate ions at a concentration greater than 50 mg/l; a chelating agent; and an acid in an amount sufficient to result in the well servicing fluid having a pH of 4.5 or less. A method of servicing a well is also disclosed.