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:
May. 03, 2016
Filed:
Nov. 17, 2011
Krishnan Kumaran, Raritan, NJ (US);
Niranjan A. Subrahmanya, Three Bridges, NJ (US);
Pavlin B. Entchev, Moscow, RU;
Randy C. Tolman, Spring, TX (US);
Renzo Moises Angeles Boza, Houston, TX (US);
Krishnan Kumaran, Raritan, NJ (US);
Niranjan A. Subrahmanya, Three Bridges, NJ (US);
Pavlin B. Entchev, Moscow, RU;
Randy C. Tolman, Spring, TX (US);
Renzo Moises Angeles Boza, Houston, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
Methods and apparatus for actuating a downhole tool in wellbore includes acquiring a CCL data set or log from the wellbore that correlates recorded magnetic signals with measured depth, and selects a location within the wellbore for actuation of a wellbore device. The CCL log is then downloaded into an autonomous tool. The tool is programmed to sense collars as a function of time, thereby providing a second CCL log. The autonomous tool also matches sensed collars with physical signature from the first CCL log and then self-actuates the wellbore device at the selected location based upon a correlation of the first and second CCL logs.