Effect of Acoustic Action on Well Production

Abstract

Estimates and calculations presented in chapter 12 show that when a medium undergoes acoustic treatment at the most common frequency of ~ 10⁴ Hz, the mechanism of the acoustic energy dissipation due to the development of the so-called “thermal slide,” a “flowless” motion of fluid, plays the principal part in the alteration of conducting properties of the medium. The dissipative character of the energy release in separate capillary groups permits to explain the feature of the acoustic treatment of reservoirs caused by the cumulativity of this treatment. Localization of the energy release in separate capillary groups causes the destruction of the cementing substance (clay, biotite, etc.) and its being carried away from the group. This substance is weak, and therefore the thermoelastic stress developing in the medium is sufficient to destroy it.