Applied Geophysics

Drilling in deep, super-critical ambient (DESCRAMBLE)

DESCRAMBLE has developed novel drilling technologies for a proof-of-concept test of reaching deep geothermal supercritical resources. It has drilled and tested the continental-crust condition for demonstrating novel drilling techniques, the control of gas emissions and high temperature/pressure conditions expected from the deep fluids. The test site has an existing dry well in Larderello, Italy, already drilled to a depth of 2.2 km and temperature of 350 °C, which was deepened to the target horizon K at 2.9 km depth reaching supercritical conditions. 

The geophysical contribution was the image, depth and characterisation of the target horizon K. An seismc experiment was performed consisting an vertical seismic profile and 350 mobile seismic stations.