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:
Oct. 25, 2011
Filed:
Jul. 02, 2008
Philip F. Sullivan, Bellaire, TX (US);
Gary John Tustin, Sawston, GB;
Yenny Christanti, Houston, TX (US);
Gregory Kubala, Houston, TX (US);
Bruno Drochon, Houston, TX (US);
Yiyan Chen, Sugar Land, TX (US);
Marie Noelle Dessinges, Paris, FR;
Paul R. Howard, Sugar Land, TX (US);
Philip F. Sullivan, Bellaire, TX (US);
Gary John Tustin, Sawston, GB;
Yenny Christanti, Houston, TX (US);
Gregory Kubala, Houston, TX (US);
Bruno Drochon, Houston, TX (US);
Yiyan Chen, Sugar Land, TX (US);
Marie Noelle Dessinges, Paris, FR;
Paul R. Howard, Sugar Land, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.