Liquid sampling apparatus
Load cells for sensing weight and torque on a drill bit while dr
Log correlation method and apparatus
Logging apparatus for a core sample cutter
Logging method and system for measuring mechanical parameters of
Logging tool
Logging tool for cement evaluation
Logging while drilling method and apparatus for measuring stando
Logging while raising a drill string
Long range data transmitter for horizontal directional drilling
Low-water-pressure controlled hydrologic test method
Magnetic freepoint sensor utilizing spaced hall effect devices
Marine riser measuring joint
Measurement of borehole temperature
Measurement of specific interfacial areas of immiscible fluid in
Measurement system and method for quantitatively determining the
Measurements of properties and transmission of measurements...
Measuring casing coupler apparatus
Measuring device used in a four-parameter measuring system and i
Measuring in situ stress, induced fracture orientation, fracture