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. 25, 2003
Filed:
Oct. 13, 2000
Applicant:
Inventors:
Vladimir Vaynshteyn, Sugar Land, TX (US);
Matthew Sweetland, Somerville, MA (US);
Christian C. Spring, Houston, TX (US);
Assignee:
Schlumberger Technology Corp., Rasharon, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/08 ; E21B 4/709 ; E21B 4/714 ;
U.S. Cl.
CPC ...
E21B 4/08 ; E21B 4/709 ; E21B 4/714 ;
Abstract
A downhole tool that is connectable to a line to be run downhole with the tool includes a housing, a sensor and a mechanism that is located inside the housing. The mechanism is coupled to the sensor to, in response to the detection of the feature by the sensor, generate a tension signal in the line without physically contacting a downhole structure.