Influence of oscillatory phenomena in vertical well on volume of outflow from production string

Abstract

During well operation, there is a leaky cement ring, which is due to various reasons, the main of which are the technology of casing production strings and the used grouting materials that do not regard the actual geological and technical conditions of wells. Thus, the most important task is to ensure high-quality annulus insulation during well cementing. Theoretical studies which can be used to calculate the volume of fluid outflowing from a cemented and uncemented casing regarding the pressure distribution in a vertical well on conditions that data on the characteristics of the casing and working fluid is known are an urgent issue.