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.

Date of Patent:
Mar. 12, 2019

Filed:

May. 25, 2016
Applicants:

Shiv Shankar Sangaru, Al-Khobar, SA;

Prahlad Yadav, Jabalpur, IN;

Tianping Huang, Spring, TX (US);

Gaurav Agrawal, Dammam, SA;

Mohammed Al-rabah, Qataif, SA;

Inventors:

Shiv Shankar Sangaru, Al-Khobar, SA;

Prahlad Yadav, Jabalpur, IN;

Tianping Huang, Spring, TX (US);

Gaurav Agrawal, Dammam, SA;

Mohammed Al-Rabah, Qataif, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); C09K 8/506 (2006.01); C09K 8/504 (2006.01); C09K 8/60 (2006.01); C09K 8/68 (2006.01); E21B 43/26 (2006.01); C09K 8/66 (2006.01);
U.S. Cl.
CPC ...
C09K 8/506 (2013.01); C09K 8/5045 (2013.01); C09K 8/602 (2013.01); C09K 8/665 (2013.01); C09K 8/68 (2013.01); E21B 43/16 (2013.01); E21B 43/26 (2013.01); C09K 2208/10 (2013.01); C09K 2208/30 (2013.01);
Abstract

A method of treating a subterranean formation penetrated by a well comprises combining an aqueous base fluid, a viscoelastic surfactant gelling agent, two or more types of the following nanoparticles: an alkaline earth metal oxide; an alkaline earth metal hydroxide; a transition metal oxide; or a transition metal hydroxide to form a treatment fluid, and pumping the treatment fluid into the well, wherein the weight ratio of the two or more types of the nanoparticles is selected such that the treatment fluid has an improved fluid efficiency as compared to an otherwise identical reference fluid except for comprising only one type of the nanoparticles selected from an alkaline earth metal oxide; an alkaline earth metal hydroxide; a transition metal oxide; and a transition metal hydroxide.


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