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:
Jan. 26, 2016
Filed:
Aug. 21, 2012
Camille Lanctot-downs, Edmonton, CA;
Michel Epiney, Duvernay, CA;
Fabrice Laberge, Outremont, CA;
Vasuhi Rasanayagam, Newark, DE (US);
Meenakshi Sundaram, Newark, DE (US);
Camille Lanctot-Downs, Edmonton, CA;
Michel Epiney, Duvernay, CA;
Fabrice Laberge, Outremont, CA;
Vasuhi Rasanayagam, Newark, DE (US);
Meenakshi Sundaram, Newark, DE (US);
American Air Liquide Inc., Fremont, CA (US);
Air Liquide Canada, Inc., Montreal, Quebec, CA;
Abstract
The present invention is a cryogenic subterranean fracturing fluid, comprising a liquefied industrial gas and a viscosity increasing additive. The liquefied industrial gas may be liquefied carbon dioxide, liquefied nitrogen, or a blend of the two. The liquefied industrial gas mixture should be substantially free of water. In this context, substantially free of water means less than 10% water by volume, or preferably less than 5% water by volume. In addition to the viscosity increasing additive, a proppant may be added to the fracturing fluid. In addition to the viscosity increasing additive and/or proppant additional additives may be added to the liquefied industrial gas as required.