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:
Jan. 25, 2022

Filed:

Jan. 18, 2019
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Hooisweng Ow, Woburn, MA (US);

Rena Shi, Cambridge, MA (US);

Jason R. Cox, Ashland, MA (US);

Sehoon Chang, Cambridge, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/02 (2006.01); C07D 471/04 (2006.01); C09K 11/07 (2006.01); E21B 47/11 (2012.01); E21B 49/08 (2006.01); G01N 21/64 (2006.01); C07D 213/79 (2006.01); C09K 8/03 (2006.01); C07D 401/04 (2006.01); C07D 213/89 (2006.01); C07D 213/55 (2006.01); E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
E21B 47/11 (2020.05); C07D 213/55 (2013.01); C07D 213/79 (2013.01); C07D 213/89 (2013.01); C07D 401/04 (2013.01); C07D 471/04 (2013.01); C09K 8/03 (2013.01); C09K 11/07 (2013.01); E21B 43/16 (2013.01); E21B 49/08 (2013.01); G01N 21/643 (2013.01); G01N 21/6408 (2013.01); C09K 2211/1018 (2013.01); C09K 2211/182 (2013.01); E21B 49/0875 (2020.05); G01N 2021/6441 (2013.01); G01N 2201/129 (2013.01);
Abstract

The disclosure features methods of analyzing a fluid extracted from a reservoir, the methods including introducing a first composition featuring a first complexing agent into a reservoir at a first location, extracting a fluid from the reservoir at a second location different from the first location, combining the fluid with a second composition featuring a concentration of a lanthanide ion to form a third composition featuring a concentration of a complex formed by the first complexing agent and the lanthanide ion, exposing a quantity of the complex to electromagnetic radiation for a first time period ending at a time t, detecting fluorescence emission from the quantity of the complex for a second time period starting at a time t>t, where t−tis greater than 2 microseconds, and determining information about a fluid flow path between the first location and the second location.


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