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:
Sep. 27, 2011
Filed:
Jun. 17, 2009
James C. Brannigan, Cypress, TX (US);
Raymond V. Nold, Iii, Beasley, TX (US);
John Rasmus, Richmond, TX (US);
Fernando Garcia-osuna, Sugar Land, TX (US);
Alexander Zazovsky, Houston, TX (US);
James C. Brannigan, Cypress, TX (US);
Raymond V. Nold, III, Beasley, TX (US);
John Rasmus, Richmond, TX (US);
Fernando Garcia-Osuna, Sugar Land, TX (US);
Alexander Zazovsky, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A drill string caliper includes a mandrel configured to be coupled within a drill string. At least one laterally extensible arm is coupled to an exterior of the mandrel. A biasing device is configured to urge the at least one arm into contact with a wall of a wellbore. A sensor is configured to generate an output signal corresponding to a lateral extent of the at least one arm.