Time I fluid pressure recording
Hydraulic fracturing may be carried out in vertical holes drilled from the surface or
underground in holes drilled from tunnels (vertical, inclined or horizontal). May be
combined with overcoring from tunnels, i.e. hydraulic fracturing is carried out after
overcoring in the same hole.
Maximum borehole length: 250 m
Borehole diameter: 46 — 76 mm
Computerised logging equipment May be used in combination with overcoring in holes drilled from tunnels
Equipment units may be shipped by normal air freight