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:
Apr. 16, 2013
Filed:
Aug. 10, 2009
Applicants:
Larry S. Eoff, Duncan, OK (US);
B. Raghava Reddy, Duncan, OK (US);
Eldon D. Dalrymple, Duncan, OK (US);
Inventors:
Larry S. Eoff, Duncan, OK (US);
B. Raghava Reddy, Duncan, OK (US);
Eldon D. Dalrymple, Duncan, OK (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/60 (2006.01); C09K 8/588 (2006.01); E21B 43/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods comprising introducing a hydrophobically and cationically modified relative permeability modifier into a portion of a subterranean formation. The hydrophobically and cationically modified relative permeability modifier comprises a hydrophilic polymer backbone with a hydrophobic modification and a cationic modification. The cationic modification may comprise at least one cationic compound comprising an alkyl chain length of from 1 to 3 carbons.