Borehole Geophones

Borehole triaxial geophone for shear wave measurements in dry or water-filled holes up to 200m deep.

5 sensor geophone (4 horizontal, 1 vertical) for P- and S-waves in dry or water-filled boreholes up to 200m deep.

BGK3 (triaxial sensor) and BGK7 (6 horizontal and one vertical sensor) for recording P- and S-waves in dry or water-filled boreholes up to 200m deep.

Digital borehole geophone for P- and S-waves in dry or water-filled boreholes up to 2000m deep. Deployed using a logging winch with four-conductor cable.

Two-station system to receive P- and S-waves in dry and water-filled boreholes up to 100m deep and determine interval velocities.