Patent ID: 9618646
Date: 2017-04-11
CPC Classifications: G01V

Claim:
1. A system for synchronizing instruments in a drill pipe to detect formation characteristics, comprising: at least one first transmitter in the drill pipe for transmitting a first signal; at least one first receiver in the drill pipe for receiving a second signal having information based on the first signal; at least one acoustic transmitter in the drill pipe for transmitting an acoustic signal; and at least one acoustic sensor in the drill pipe and electrically connected to one of the at least one first transmitter and the at least one first receiver, the at least one acoustic sensor for sensing the acoustic signal for synchronizing the at least one first transmitter and the at least one first receiver, wherein the drill pipe includes a plurality of sub-sections (subs), the at least one first transmitter is located in a different sub than the at least one first receiver, the at least one first receiver includes a plurality of first receivers, and the at least one acoustic sensor includes a plurality of acoustic sensors, each acoustic sensor electrically connected to a separate one of the plurality of first receivers, each separate one of the plurality of first receivers located in different subs.