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:
Jan. 03, 2017
Filed:
Dec. 04, 2012
Schlumberger Technology Corporation, Sugar Land, TX (US);
Alex Olson, Houston, TX (US);
Nalin Weerasinghe, Sagamihara, JP;
Milos Milosevic, Houston, TX (US);
Kun Wang, Sugar Land, TX (US);
Motohiro Nakanouchi, Hachioji, JP;
Kenji Endo, Sagamihara, JP;
Yuichi Kobayashi, Machida, JP;
Hiromasa Nishisaka, Sagamihara, JP;
Schlumberger technology Corporation, Sugar Land, TX (US);
Abstract
Methods and systems for failure point diagnostics in cable telemetry at a wellsite. The methods involve providing a system includes a cable operatively coupling between a surface modem and a downhole modem that is operatively coupled to a downhole toolstring of one or more downhole tools via a toolbus. The methods further involve generating a plurality of test signals, sequentially applying the test signals across one or more test loops in the cable telemetry system, and generating a failure point alert when at least one of the test signals fails in at least one of the test loops. The failure point alert identifies which component of the cable telemetry system caused the test signal to fail.