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:
May. 31, 1988
Filed:
Jan. 30, 1986
Applicant:
Inventor:
John E Fontenot, Houston, TX (US);
Assignee:
NL Industries, Inc., New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
73152 ; 731515 ; 175 45 ;
Abstract
The inclination and slope of a bedding plane are determined from oriented measurements of the bending moment generated as a bit encounters and passes completely through the interface between two dissimilar formations. These moments are distinguishable from moments generated by gravity, interaction of the bit and the formation, and interaction of the drill string with the borehole. Preferably, determination of the bedding slope and direction is accomplished by downhole data processing.