12-gauge source is designed for generation of seismic pulses during land seismic surveys. The generation of seismic signals is produced in shallow (< 1 m) specially drilled boreholes with no case. A standard 12-gauge cartridge without warhead is used; it is filled with the required amount of gunpowder (up to 5 gr). The source provides generation of the wave fields over a wide frequency range with intensity sufficient for reflected waves’ registration in 500-700 meters depth interval.
Optimal conditions for pulse generation: soft clay, loam, dry sand, water saturated areas etc. Seismograms on different objects can be seen below, showing good result in various conditions: thinning of the layer, steep strata alighnment, dome srductures. Topography vary from subhorizontal to highly rugged. The deepest reflections are from depths up to 700 meters.
|Charge type||special 12-gauge cartridge|