Newcastle University had recently drilled a 1000mtr deep geothermal borehole which produced heated water from deep in the Weardale granite formation. The new project was to drill a recharge borehole into the granite several hundred metres away. The proposed borehole was to be 400mtr deep penetrating approximately 100mtr into the granite formation. A small spot core was also to be taken of the granite as this had never been seen in solid form. The strata to be penetrated above the granite consisted of a series of limestone, mudstone and whin sill layers, many of which were fractured, cavernous and particularly hard. Client Name: Newcastle University Description of the Works: Weardale Geothermal BoreholeThe borehole was drilled with Drilcorp’s Conrad Comax 800 Drilling Rig with various dril

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