HARMONIC PRESSURE WAVES IN FRACTURES OCCURRING IN OIL AND GAS STRATA

Consideration has been given to the problem on propagation of harmonic pressure waves in a fracture produced by hydraulic fracturing in a porous and permeable medium. A dispersion analysis has been made on the basis of the theoretical model in the form of a system of integro-differential equations; the infl uence of the reservoir characteristics of the stratum and the fracture (e.g., of the porosity and permeability of the stratum and the width of the fracture) on the features of propagation of harmonic waves in the fracture and beyond it is studied. It has been established that the fracture in a porous and low-permeability stratum is a wave channel of sorts for low-frequency pressure oscillations in wells.
   
Author:  V. Sh. Shagapov and Z. M. Nagaeva
Keywords:  : hydraulic fracturing of the stratum, fracture, pressure wave, integro-differential equation, dispersion analysis
Page:  1053