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. 12, 2013
Filed:
Jun. 03, 2009
Thomas Cochet, Paris, FR;
Trevor Hughes, Cambridge, GB;
Slaheddine Kefi, Velizy Villacoublay, FR;
Valerie Lafitte, Cambridge, GB;
Khooi Tan, Coton, GB;
Gary Tustin, Sawston, GB;
Shiyi Wang, Cambridge, GB;
Thomas Cochet, Paris, FR;
Trevor Hughes, Cambridge, GB;
Slaheddine Kefi, Velizy Villacoublay, FR;
Valerie Lafitte, Cambridge, GB;
Khooi Tan, Coton, GB;
Gary Tustin, Sawston, GB;
Shiyi Wang, Cambridge, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A process for hydraulic fracturing of a subterranean reservoir formation penetrated by a wellbore includes pumping a fracturing fluid or other aqueous fluid from the surface via the wellbore and into the reservoir. This fluid is an aqueous suspension of particles which each comprise an oilfield chemical distributed within an encapsulating matrix of water-insoluble carrier material. The encapsulating matrix is chosen so as to provide a delayed release of the oilfield chemical from the particles into surrounding fluid, such that oilfield chemical is liberated from the particles after they have entered the fracture. The encapsulating matrix may be a polymer which is at least partially amorphous, with a glass transition temperature below the reservoir temperature.