Fail-safe circuit mechanism for generating a pulse indicating th
Fail-safe mechanism for generating a pulse indicating the precis
Fail-safe methods for generating a pulse indicating the precise
Fast cycle seismic gas exploder and method
Finding distance to blowout using wellbore acoustic measurements
Firing device, explosive charge, method, and system, for seismic
Flexcompressional acoustic transducer
Flexible marine seismic source
Fluid actuated acoustic pulse generator
Fluid driven torsional dipole seismic source
Fluid operated seismic generator
Fluidic repeater
Focused planar transducer
Fracture detection using circumferential offset acoustic paths
Full flow solenoid valve for air gun operation
Full flow solenoid valve for air gun operation
Fuse cord