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ManualsBrandsGeophysical Technology ManualsInstrumentsSelf-contained seismic nodal recording unit
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FIELD EQUIPMENT
NUSEIS
Geophysical Technology Inc Field Equipment Page | 61
Fuel Powered Rotary Drill (PDT-F)
• For very hard drilling areas such as expanses of solid surface rock, a fuel powered rotary drill can
be used with a custom built coring bit.
• Coring a hole in the rock with the custom bit forms a hole that fits the NRU.
• Superior coupling to the cored hole is achieved using the NuSeis RocLoc. This coupling is far
superior to a standard geophone with a spike wedged into a drilled hole.
Figure 49
Figure 50