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:
Oct. 16, 1990
Filed:
Feb. 25, 1986
Applicant:
Inventors:
Daniel F Coope, Houston, TX (US);
John E Fontenot, Houston, TX (US);
Assignee:
Baroid Technology, Inc., Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
367 35 ; 367 25 ; 367 27 ; 324338 ;
Abstract
A method and apparatus for measuring the caliber of a borehole while drilling utilizes a borehole compensated downhole measuring system in both a compensated and a non-compensated manner. A transmitter of the measuring system generates a signal which is received by at least one spaced receiver with the time/phase relationship of the transmission and reception of the signal at each receiver being indicative of the borehole caliber.