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:
Aug. 28, 2012
Filed:
Feb. 19, 2008
Robert Seth Hartshorne, Newmarket, GB;
Trevor Lloyd Hughes, Cambridge, GB;
Timothy Gareth John Jones, Cottenham, GB;
Gary John Tustin, Sawston, GB;
James Francis Westwood, Betchworth, GB;
Robert Seth Hartshorne, Newmarket, GB;
Trevor Lloyd Hughes, Cambridge, GB;
Timothy Gareth John Jones, Cottenham, GB;
Gary John Tustin, Sawston, GB;
James Francis Westwood, Betchworth, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A water-based wellbore treatment fluid contains: one or more viscoelastic-gelling carboxylic acids and/or alkali metal salts thereof; and one or more solubilizing alkylolamines. The carboxylic acids and/or alkali metal salts and the alkylolamines are present in the fluid in respective amounts such that, at 25° C., the alkylolamines solubilize a sufficient portion of the carboxylic acids and/or alkali metal salts to render the fluid viscoelastic. A remaining portion of the carboxylic acids and/or alkali metal salts forms a suspension of solid particulates in the fluid.