Land seismic acoustic source
Land seismic data acquisition method and seismic cable and...
Land seismic gas detonator
Large diameter borehole apparatus
Lift and isolation system for seismic vibrator
Lightweight inflatable borehole receiver unit for seismic...
Liquid slug projector apparatus
Locking arm for well tool
Logging method and apparatus using a sonde equipped with measuri
Logging method and apparatus using a sonde equipped with measuri
Logging method and device in well bores utilizing directional em
Logging tool housing with acoustic delay
Low energy source for seismic operation
Low frequency acoustic attenuator
Low frequency acoustic attenuator for use in downhole...
Low frequency flextensional acoustic source for underwater use
Low frequency flextensional acoustic source for underwater use
Low impedance down-hole acoustic source for well logging