Abnormally high reservoir pressures in areas with a degraded energy state

Abstract

Nowadays, in the Uzen and Karamandybas oilfields most of the developed objects show decreasing reservoir pressure. Therefore, there is a need to consider opportunities for increasing the efficiency of the existing system for maintaining reservoir pressure for specific identified areas.
 This article proposes an approach for a detailed analysis of the current energy state of certain areas through hydrodynamic tests of injection wells in non-stationary filtration modes. The reasons for the occurrence of abnormally high reservoir pressures are presented on the examples of wells, and possible ways to solve them are proposed.