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:
Oct. 02, 2018
Filed:
Dec. 14, 2014
Schlumberger Technology Corporation, Sugar land, TX (US);
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
A method, apparatus and system for safe mode telemetry are provide. The method may include detecting a failure of an AC power supply, switching the AC power supply to a DC power supply, booting with a safe mode telemetry system by a control unit, and capturing downhole data for recording into a memory. The apparatus may include a telemetry cartridge, a control unit to detect a failure of an AC power supply, a DC power supply, and a switching device to change from the AC power supply to the DC power supply based on the control unit's detection of the failure in the AC power supply. The DC power supply of the apparatus may be used to power the telemetry cartridge after the detection of the failure. The system may further include a surface data acquisition unit and a downhole tool including the apparatus.