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:
Apr. 02, 2013
Filed:
Sep. 30, 2010
Jess V. Ford, Weatherford, TX (US);
Sean M. Christian, Land O Lakes, FL (US);
Bryan W. Kasperski, Carrollton, TX (US);
Tom Haslett, Toronto, CA;
Dave Demmer, Toronto, CA;
Margaret C. Waid, Aledo, TX (US);
Mike Yuratich, Hamble Hants, GB;
Jess V. Ford, Weatherford, TX (US);
Sean M. Christian, Land O Lakes, FL (US);
Bryan W. Kasperski, Carrollton, TX (US);
Tom Haslett, Toronto, CA;
Dave Demmer, Toronto, CA;
Margaret C. Waid, Aledo, TX (US);
Mike Yuratich, Hamble Hants, GB;
Precision Energy Services, Inc., Fort Worth, TX (US);
Abstract
A downhole fluid analysis tool has a housing and a flow passage for downhole fluid. A device disposed in the tool housing relative to the flow passage has a one or more sources, one or more sensing optics, one or more detectors, and control circuitry. The source generates an input signal. The sensing optic has a refractive index (RI) higher than crude oil and other expected constituents. A sensing surface of the optic optically coupled to the source interfaces with a downhole fluid. When the variable RI of the downhole fluid reaches a defined relationship to the optic's RI, the input signal interacting with the sensing surface experiences total internal reflection, and the reflected signal from the sensing surface remains in the sensing optic and reflects to a detector. The control circuitry monitors the detector's response and indicates gas break out if the response is above a threshold.