| http://www.w3.org/ns/prov#value | - Other sensors such as pressure, gamma-ray, and resistivity are typically housed in separate dedicated tool sections. ??? Transmitter - Current day MWD tools transmit in one of two basic manners, by sending pressure waves through the drilling mud (mud pulse) or by transmitting electromagnetic EM signals through the earth to surface. ??? Mud PulseMud pulse tools operate by either opening or closin
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