Experimental study of fracture toughness
Authors: R.R. Ibatullin, V.G. Salimov, A.V. Nasybullin, O.V. Salimov (TatNIPIneft)
This paper describes the results of experimental study of fracture toughness used for planning and performing hydrafrac jobs. Brazilian disk method was used to determine fracture toughness of Devonian terrigenous and Lower and Upper Carboniferous carbonate sediments samples from south-east Tatarstan fields. The obtained values of fracture toughness were averaged for reservoirs and bounding layers rocks of said sediments.
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