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:
Jul. 16, 2013
Filed:
Aug. 30, 2010
Gregoire Jacob, Paris, FR;
Gregoire Jacob, Paris, FR;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
An anti-lock system, device and method for logging a wellbore are presented. The anti-lock system of a downhole tool preferably includes a first arm, a second arm, a pad, a swivel bearing between the first arm and the pad, and an anti-locking device. The first arm has an arm first end connected to the tool body of the downhole tool and an arm second end connected to a first end of the pad. The second arm has an arm first end connected to the tool body of the downhole tool and an arm second end connected to a second end of the pad. The swivel bearing between the first arm and the pad pivotally connects the first arm to the pad. The anti-locking device is coupled to the swivel bearing, and preferably includes an anti-lock biasing member for maintaining a connection between the first arm and the pad at the swivel bearing in an engaged position during normal logging and for allowing the connection to rotate toward a biased position when a binding force is encountered in the arm system.