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. 06, 2013
Filed:
Jun. 13, 2008
Applicants:
Kewei Zhang, Calgary, CA;
Chris Wiggins, Calgary, CA;
Inventors:
Kewei Zhang, Calgary, CA;
Chris Wiggins, Calgary, CA;
Assignee:
Trican Well Services, Ltd., Calgary, CA;
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/22 (2006.01); C09K 8/565 (2006.01); C09K 8/82 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of agglomerating coal particles in a subterranean formation having a coal seam, comprising the steps of providing (a) a fluid having an aqueous medium and a first collector and/or a frother; (b) pumping the fluid into the formation and (c) contacting coal particles in the formation thereby agglomerating the contacted coal particles.