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Short Communications

Experimental investigation of the dielectric parameters of bituminous productive rock under high uniform pressure

M. A. Fatyhov, R. R. Shagapova

Bashkir State Pedagogical University, Ufa

Abstract: The effect of high uniform pressure and temperature on the dielectric properties of productive rock of a bituminous deposit is investigated experimentally. It is found that a pressure increase results in the shift of maxima of the dielectric loss tangent towards lower frequencies, in an increase in the time of relaxation, and in a nonlinear variation of the value of permittivity. The frequency dependences of the dielectric parameters of productive rocks are characteristic of dielectrics with dipole-group processes.

UDC: 537.87:532.546:622.276

Received: 08.07.2003

 English version: High Temperature, 2004, 42:5, 821–823