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:
Nov. 24, 2020
Filed:
Nov. 15, 2018
Sanvean Technologies Llc, Katy, TX (US);
Stephen Jones, Cypress, TX (US);
Junichi Sugiura, Bristol, GB;
SANVEAN TECHNOLOGIES LLC, Katy, TX (US);
Abstract
A method for controlling a downhole steerable tool, such as a rotary steerable system (RSS), in a drilling system that also includes a rotating drillstring and a measurement-while-drilling (MWD) system comprises encoding an original command for the tool into an encoded signal consisting of modulations of the drillstring rotation rate, transmitting the encoded command by modulating the drillstring rotation rate, measuring the drillstring rotation rate at the tool and decoding the encoded command so as to generate a tool-decoded command, separately measuring the drillstring rotation rate and decoding the encoded command from the separate downhole-measurements so as to generate a separately downhole-decoded command, transmitting the separately downhole-decoded command to the uphole location, comparing the separately downhole-decoded command to the original command, and taking corrective action if the two commands are different.