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:
Jun. 04, 2019
Filed:
Sep. 12, 2016
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventor:
James E. Galford, Missouri City, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 13/00 (2006.01); G01V 5/04 (2006.01); E21B 41/00 (2006.01); E21B 47/09 (2012.01); E21B 49/00 (2006.01); E21B 47/12 (2012.01); E21B 47/18 (2012.01);
U.S. Cl.
CPC ...
G01V 13/00 (2013.01); E21B 41/0092 (2013.01); E21B 47/09 (2013.01); E21B 49/00 (2013.01); G01V 5/04 (2013.01); E21B 47/124 (2013.01); E21B 47/18 (2013.01);
Abstract
Gamma ray logging tools are calibrated using gamma emissions data simulated using Monte Carlo modeling techniques. During the simulation, one or more nuclear activity zones of a formation are modeled and photon counting rates are determined. Using the simulated counting rates, an American Petroleum Institute ('API') unit sensitivity factor is calculated. The API unit sensitivity factor is then applied to convert real logging tool counting responses into API units.