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REGULARITIES OF THERMAL WAVES FORMATION IN MOVING ENVIRONMENT AND THEIR APPLICATION TO PETROLEUM GEOPHYSICS
Abstract
In conductive heat transfer mechanism daily (diurnal) temperature variations almost damp in a layer as deep as 1 m, and annual variation do it as deep as 18-21 m. In case of coincidence of periodic heating with flui d mass transfer (downward percolation of surface water from rivers), thickness of the layer with periodic temperature fluctuations increases significantly. This discovery with author`s priority registered August,19, 1964, was made by N.M. Frolov. We consider the research on temperature waves created in moving media to be of interest. In our research temperature waves were set in capillary-porous samples (rocks) while fluids were filtrating through them in and against the direc tion of temperature wave propagation. A Russian scientist, S.N. Kravchun, described temperature waves probing the liquid flowing along the wire which was heated by alternating current, and located along the velocity vector, i.e. pr opagated vertically to the fluidflow. An incredible effect was registered. With a gr adual increase in flow rate, contrary to expectations the temper ature fluctuation amp litude distinctly incr eases, and only with further increase in velocity it starts to decrease. This Frolov-Lipaev-Kravchun effect has importa nt practical applications, particularly in implementation of thermal methods of high viscosity oil and natural bitumen stimulation.
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References6
Regularity of inversion temperature vari eties in hydrosphere. Discoveries in the USSR, Moscow, Russia, 1989, pp.20-22;
A.A.Lipaev. Development of methods for determining and study of heat and mass transfer parameters in reservoirs, Russia, 1991, pp.221;
A.A.Lipaev. Thermophysical studies in petrophysics, Russia, 1993, pp.147;
S.N. Kravchun & A.A.Lipaev. The met hod of periodic heating in experimental thermal physics, Russia, 2006, p. 208;
N.V. Zubov, D.G. Antoniadi & M.A. Berlin,etc. Ther mal fluctuation effect in oil recovery in fractured porous reservoir. Mathematical and physical simulation of oil fields development, 1990, pp.29-31;
L.P.Filippov, Measuring thermal proper ties of substances by means of periodic heating, Russia, 1984, pp.105.
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