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:
Dec. 31, 2024

Filed:

May. 01, 2018
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Lei Wang, Burlingame, CA (US);

Jeffrey James Crawford, Katy, TX (US);

Paravastu Badrinarayanan, Cypress, TX (US);

Gordon Layne Moake, Houston, TX (US);

Michel LeBlanc, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 5/12 (2006.01); E21B 47/00 (2012.01); E21B 49/00 (2006.01); E21B 47/07 (2012.01);
U.S. Cl.
CPC ...
G01V 5/12 (2013.01); E21B 47/00 (2013.01); E21B 49/00 (2013.01); E21B 47/07 (2020.05);
Abstract

The present disclosure describes gain stabilization techniques for scintillation devices which do not require use of an intrinsic reference radiation source. Reference light pulses are emitted into the scintillation device to obtain a signal having a given magnitude. The magnitude of the signal is compared to the magnitude of a reference signal computed as a function of temperature and a degradation factor. A gain adjustment is computed which causes the magnitude of the signal to match the target reference magnitude. The gain adjustment is then used to adjust the system gain so that subsequent output signal amplitudes, measured when energetic photons interact in the scintillator, always correspond to the same energy.


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