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. 25, 1989
Filed:
May. 27, 1987
Applicant:
Inventors:
Larry L Gadeken, Houston, TX (US);
Dan M Arnold, Houston, TX (US);
Assignee:
Halliburton Logging Services Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
250256 ; 250262 ;
Abstract
A method and apparatus (43) are disclosed for natural gamma ray spectral logging of a well borehole (41) to determine the abundances of uranium (U), potassium (K), and thorium (Th) gamma rays in the earth formations (46) adjacent to the borehole (41), and for compensating for borehole attenuation effects upon such gamma photons caused by scattering and absorption phenomena in the materials (42) within the borehole.