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. 14, 2000
Filed:
Sep. 23, 1998
Applicant:
Inventors:
Georgios L Varsamis, Houston, TX (US);
Laurence T Wisniewski, Houston, TX (US);
Carey R Murphey, Bellaire, TX (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
702-6 ; 702 16 ;
Abstract
A downhole apparatus is provided for quickly and accurately estimating the ellipticity of an earth borehole during any drilling operation using circle-based calculations involving statistical analysis of distance measurements made by acoustic sensors. A corresponding method of estimating such ellipticity is also disclosed.