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. 06, 2015
Filed:
Dec. 04, 2012
Schlumberger Technology Corporation, Sugar Land, TX (US);
Hiromasa Nishisaka, Sagahimara, JP;
Takeaki Nakayama, Machida, JP;
Milos Milosevic, Houston, TX (US);
Eric Jeanson, Sugar Land, TX (US);
Nalin Weerasinghe, Sagamihara, JP;
Kun Wang, Sugar Land, TX (US);
Yuichi Kobayashi, Machida, JP;
Motohiro Nakanouchi, Hachioji, JP;
David Santoso, Sugar Land, TX (US);
Alex Olson, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Systems and methods for toolstring communication in cable telemetry. The methods involve positioning a cable telemetry system in a wellbore. The cable telemetry system can include a surface modem, a downhole toolstring of downhole tools, a downhole modem operatively coupled to the downhole toolstring, a cable operatively coupling between the surface modem and the downhole modem, and a surface data routing module that polls and trains the cable telemetry system. The methods also involve performing a pre-transmission poll of a rate requirement for the downhole toolstring and a telemetry type for the downhole modem, applying a training phase to establish a transmission link between the surface modem and the downhole modem, configuring data obtained by the downhole toolstring for an uplink via the transmission link, and transmitting the uplink via the transmission link.