公开(公告)号：WO2018217622A2

公开(公告)日：2018-11-29

申请号：PCT/US2018/033638

申请日：2018-05-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： CHIN, Wilson, Chun-Ling ,  SALEH, Shadi ,  BRAZIL, Stewart, Blake

IPC: E21B21/08 ,  E21B44/00 ,  E21B41/00

Abstract: A drilling system including a sensor configured to monitor at least one drilling parameter, and configured to generate a signal based on the at least one drilling parameter. An encoder is in communication with the sensor, and the encoder is configured to convert the signal into a modulation signal. A flow modulator is configured to channel drilling fluid therethrough. The flow modulator includes at least one stator element and a rotor element configured to freely rotate relative to the at least one stator element as the drilling fluid flows past the rotor element. A braking system is in communication with the encoder, and the braking system is configured to selectively decrease a rotational speed of the rotor element based on the modulation signal such that an encoded acoustic signal is emitted from the flow modulator through the drilling fluid.

公开(公告)号：WO2018217622A3

公开(公告)日：2018-11-29

申请号：PCT/US2018/033638

申请日：2018-05-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： CHIN, Wilson, Chun-Ling ,  SALEH, Shadi ,  BRAZIL, Stewart, Blake

IPC: E21B21/08 ,  E21B44/00 ,  E21B41/00

Abstract: A drilling system including a sensor configured to monitor at least one drilling parameter, and configured to generate a signal based on the at least one drilling parameter. An encoder is in communication with the sensor, and the encoder is configured to convert the signal into a modulation signal. A flow modulator is configured to channel drilling fluid therethrough. The flow modulator includes at least one stator element and a rotor element configured to freely rotate relative to the at least one stator element as the drilling fluid flows past the rotor element. A braking system is in communication with the encoder, and the braking system is configured to selectively decrease a rotational speed of the rotor element based on the modulation signal such that an encoded acoustic signal is emitted from the flow modulator through the drilling fluid.