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. 14, 2018
Filed:
Mar. 28, 2014
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Pubudu H. Gamage, Katy, TX (US);
Cato Russell McDaniel, Montgomery, TX (US);
William Walter Shumway, Spring, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); C09K 8/52 (2006.01); C09K 8/035 (2006.01); E21B 7/00 (2006.01); C09K 8/60 (2006.01);
U.S. Cl.
CPC ...
C09K 8/52 (2013.01); C09K 8/035 (2013.01); C09K 8/602 (2013.01); E21B 7/00 (2013.01); E21B 43/16 (2013.01);
Abstract
Methods including providing a treatment fluid comprising a base fluid, a wettability altering surfactant, and a chelating agent, wherein the treatment fluid has a pH of at least about 5; introducing the treatment fluid into a subterranean formation; altering a wettability of the subterranean formation from oil-wet to either mixed-wet or water-wet with the wettability altering surfactant; and complexing metal ions in the subterranean formation with the chelating agent.