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. 06, 2009
Filed:
Aug. 27, 2008
Applicants:
Keith R Minnich, Pewaukee, WI (US);
Kashi Banerjee, Moon Township, PA (US);
Inventors:
Keith R Minnich, Pewaukee, WI (US);
Kashi Banerjee, Moon Township, PA (US);
Assignee:
HPD, LLC, Plainfield, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/40 (2006.01); E21B 43/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
An oil recovery process utilizes one or more membranes to remove silica and/or oil from produced water. In one method, the process includes separating oil from produced water and precipitating silica. The produced water having the precipitated silica is directed to a membrane, such as a ceramic membrane, which removes the precipitated silica from the produced water. In some cases, residual oil is present and is also removed by the membrane.