Definitions for "MWD"
Measurement while drilling. Borehole survey instrumentation that provides continuous information simultaneously with drilling operations, usually transmitting to a display at or near the drilling rig.
technology that transmits information from downhole measuring devices to the surface while drilling is ongoing
Measurement While Drilling. A technique to determine the real-time position of the drill bit in a directionally drilled well during the drilling process using instrumentation placed near the bit.
Keywords:  metropolitan, district, water
Metropolitan Water District
Keywords:  dog, military, working
Military Working Dog
Molecular Weight Distribution. The relative amounts of polymers of different molecular weights (MW) that make up a specific polymer.