Determination of the optimal rate of injection acid compositions on the results of research on the core samples

Authors: G.P. Khizhnyak, I.N. Ponomareva, A.M. Amirov (Perm National Research Polytechnic University, RF, Perm), V.N. Gluschenko (PETROHIM CJSC, RF, Belgorod)

Key words: bottomhole formation zone, carbonate reservoir, acid composition, core sample, rate of injection.

Using core samples of productive deposits of Perm region authors were studied six acid compositions on the basis of hydrochloric acid. It is confirmed the existence of the optimal rate of injection at which the formation channel with high permeability for a minimum amount of acid composition. For researched acid composition and core samples optimal speed averaged 12,5·10-5 m/s.
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