Results 111 to 120 of about 532 (178)

The Influence of Extension Cable on EM-MWD Signal Transmission

open access: yesShiyou jixie, 2018
The extension antenna technology has become an important method to improve the measurement depth of EM-MWD owing to its low cost, simple structure and easy-to-use.
Shao Chun   +3 more
doaj  

Use of a portable measurement while drilling system for shallow subsurface characterization [PDF]

open access: yes
The Portable Measurement While Drilling (PMWD) equipment designed by CEREMA engineers is an innovative and lightweight tool to perform rapid assessment of shallow subsurface conditions. The equipment consists of sensors mounted on a cordless rotary drill
Benoit, J.   +4 more
core  

Application of Seismic Sensors in Measurement While Drilling. [PDF]

open access: yesSensors (Basel)
Khanal M   +5 more
europepmc   +1 more source

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