The borehole seismic array with three-component clamping geophone modules is designed for multiwave crosshole seismic testing. The number of modules on the cable can vary from 1 to 8. The interval between modules is determined by the Customer.
As sensor elements, three normally oriented geophones with a natural frequency of 12.5 Hz are used in each module. The module clamping is achieved by a passive flat spring. Lowering the cable into the borehole is conducted through the load fixed on the end of it.
The geophone array can be supplied on a reel with slip ring, which allows to leave the equipment plugged into it while winding and unwinding the cable.
|Maximum operation depth||200 m|
|Range of boreholes diameters||76 – 140 mm|
|Amount of modules in array||1 - 8 (3 – 24 channels)|
|Type of geophones||Сompensation coupled|
|Сlamping force||1:7 ~ 1:11|