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:
Mar. 13, 1984
Filed:
Aug. 21, 1981
Applicant:
Inventor:
Linus S Allen, Dallas, TX (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
250256 ;
Abstract
A subsurface formation is logged to provide a record of the natural gamma radiation of the thorium, uranium, and potassium trace elements in the formation. Both the clay and mica contents of an interval of interest are determined from the natural gamma-ray activities in such interval of interest, in a clean sandstone interval and in a mica-free shale interval.