MWD(Measurement While Drilling) refers to the continuous testing of information about the Drilling hole or bit by the Drilling rig While Drilling.
MWD (Measurement While Drilling) means that the rig continuously and continuously detects information about the drill or drill bit while drilling, and is realized by the tracking and guiding instrument. Therefore, the tracking and guiding instrument is necessary for horizontal directional drilling machine construction. Measuring equipment. LWD (Logging While Drilling) is based on MWD (Measure While Drilling), adding several parameter sensors for formation evaluation, such as compensating for dual lateral resistivity, natural gamma, Azimuth neutron density, sound waves, and compensated neutron density have been developed.
If you want to get more details about MWD,pls visit https://www.ericcointernational.com/north-finding-system/mwd/