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:
Nov. 19, 2019

Filed:

Jun. 19, 2017
Applicants:

Sankaran Murugesan, Katy, TX (US);

Radhika Suresh, Sugar Land, TX (US);

Oleksandr Kuznetsov, Manvel, TX (US);

Valery Khabashesku, Houston, TX (US);

Qusai Darugar, Houston, TX (US);

Inventors:

Sankaran Murugesan, Katy, TX (US);

Radhika Suresh, Sugar Land, TX (US);

Oleksandr Kuznetsov, Manvel, TX (US);

Valery Khabashesku, Houston, TX (US);

Qusai Darugar, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/10 (2012.01); B82Y 15/00 (2011.01); G01N 33/24 (2006.01); C09K 8/03 (2006.01); C09K 8/80 (2006.01); C09K 8/035 (2006.01); C09K 8/56 (2006.01); C09K 8/58 (2006.01); C09K 8/66 (2006.01); C09K 8/72 (2006.01);
U.S. Cl.
CPC ...
E21B 47/1015 (2013.01); B82Y 15/00 (2013.01); C09K 8/032 (2013.01); C09K 8/035 (2013.01); C09K 8/56 (2013.01); C09K 8/58 (2013.01); C09K 8/665 (2013.01); C09K 8/72 (2013.01); C09K 8/805 (2013.01); G01N 33/241 (2013.01); C09K 2208/10 (2013.01);
Abstract

A method of determining a property within a subterranean formation comprises introducing silica nanoparticles into a well; obtaining a sample of a fluid produced from the well; and analyzing the sample for presence of the silica nanoparticles, wherein the silica nanoparticles comprise a core, a donor chromophore, an acceptor chromophore, and an outer silica shell; the donor chromophore and the acceptor chromophore being selected such that an emission spectrum of the donor chromophore overlaps with an absorption spectrum of the acceptor chromophore.


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