Method of propellant fracturing under low rate reaction in wellbore hole is common in Russia and abroad. Usage of low volume propellant and dependence of fracturing mechanism from chemical reaction rate are the main limitations of technology application efficiency. Significant increase of energy output could be achieved by application of liquid reactants injection in near wellbore zone. In the paper, physical and chemical factors influencing on chemical reaction rate in porous media and thus controlling the fracturing mechanismare analyzed.

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