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. 06, 2018

Filed:

Apr. 05, 2016
Applicant:

Baker Hughes Incorporated, Houston, TX (US);

Inventors:

Othon Do Rego Monteiro, Houston, TX (US);

Devesh Kumar Agrawal, Houston, TX (US);

Sankaran Murugesan, Katy, TX (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/20 (2006.01); G01N 27/12 (2006.01); G01N 33/28 (2006.01); E21B 49/08 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
G01V 3/20 (2013.01); B82Y 30/00 (2013.01); E21B 49/08 (2013.01); G01N 27/128 (2013.01); G01N 33/287 (2013.01); E21B 2049/085 (2013.01);
Abstract

A method of determining a concentration of hydrogen sulfide in a fluid comprises exposing a sensor to the fluid, the sensor comprising a pair of electrodes defining a gap therebetween and a sensing material bridging the gap between the electrodes, measuring a value of an electrical parameter of the sensor at an applied frequency of greater than about 10 kHz and a voltage of less than about 1.0 volt when the sensor is exposed to the fluid, and determining the concentration of hydrogen sulfide in the fluid based at least in part on the measured value of the electrical parameter. Related apparatuses and methods are also disclosed.


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