Downlink based on pump noise
Drilling performance assessment process
Drilling rig closed loop controls
Drilling system powered by energy-harvesting sensor
Drilling system utilizing downhole dysfunctions for determining
Drilling system with downhole apparatus for determining...
Dual sensor signal processing method for on-bottom cable...
Dual sensor signal processing method for on-bottom cable...
Dynamic datumming for land and marine multicomponent seismic dat
Dynamic water velocity correction