DS Neg-MWD

DS Neg-MWD uses top suspension and negative pulse transmission mode. The negative pulse signal is formed through the series of pressure drop at bottom, and transferred to the ground. Single pulse device is suitable for 4 3/4 ~ 9 1 / 2in drill collar. This system has less pieces easy to be eroded, simple maintenance requirement, low maintenance costs and friendly user interface of operating system up ground. DS Neg-MWD can be easily extended gamma, resistivity, at-bit, pressure parameters and other equipment.