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:
Apr. 27, 2010
Filed:
Nov. 26, 2007
Philip F. Sullivan, Bellaire, TX (US);
Gary John Tustin, Sawston Cambridge, GB;
Yenny Christanti, Houston, TX (US);
Gregory Kubala, Houston, TX (US);
Bruno Drochon, Missouri City, TX (US);
Trevor Lloyd Hughes, Cambridge, GB;
Philip F. Sullivan, Bellaire, TX (US);
Gary John Tustin, Sawston Cambridge, GB;
Yenny Christanti, Houston, TX (US);
Gregory Kubala, Houston, TX (US);
Bruno Drochon, Missouri City, TX (US);
Trevor Lloyd Hughes, Cambridge, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A low viscosity wellbore polymer fluid gelling system comprising an aqueous medium and a water-in-water emulsion comprising a plurality of polymers or oligomers, including at least one removable polymer or oligomer, and at least one gelling polymer or oligomer, wherein said fluid has a low viscosity when injected, and the gelling polymer forms a gel downhole which has a storage modulus of at least about 60 Pa after the removable polymer is removed from the fluid. A method of isolating at least one zone of a subterranean formation penetrated by a wellbore includes the steps of preparing a water-in-water emulsion comprising a plurality of polymers or oligomers including at least one removable polymer or oligomer, and at least one gellable polymer or oligomer; and combining the water-in-water emulsion with an aqueous medium to prepare a low viscosity polymer fluid.