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1. (WO2018045148) RISER JOINT SYSTEM, WELL DRILLING SYSTEM AND METHOD FOR WELL DRILLING SYSTEM

Pub. No.:    WO/2018/045148    International Application No.:    PCT/US2017/049571
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Sep 01 01:59:59 CEST 2017
IPC: E21B 47/09
E21B 47/14
Applicants: GENERAL ELECTRIC COMPANY
Inventors: NIU, Ran
SHANG, Weihua
MEI, Yan
YE, Jing
YU, Xing
WU, Heng
GILLETTE, Gregory, Ronald
JUDGE, Robert, Arnold
MYERS, Gregory, J
Title: RISER JOINT SYSTEM, WELL DRILLING SYSTEM AND METHOD FOR WELL DRILLING SYSTEM
Abstract:
A riser joint system, comprising: a riser joint assembly defining a channel and comprising a first ultrasound module for transmitting a first ultrasound signal to obtain first ultrasound data and a second ultrasound module for transmitting a second ultrasound signal to obtain second ultrasound data, wherein a beam direction of the first ultrasound signal is perpendicular to an axial line of the channel and a beam direction of the second ultrasound signal is oblique to the axial line of the channel; and a processing module for receiving the first ultrasound data and the second ultrasound data and obtaining first information and second information. A well drilling system and a method for the well drilling system are also described.