Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

The purpose of this paper is to develop simplified methods to model multilayer reservoirs using correlation parameters during transient flow. The multilayer reservoirs are assumed to have more than two layers, which are communicated through the wellbore only. These parameters allow us to model pressure responses for multilayer reservoirs having hydraulically fractured wells with equivalent single-layer systems. The paper also examines modeling the pressure response in a multilayer system with skin factors in individual layers using a single-layer solution which includes an equivalent skin factor. The paper includes step-by-step procedures to correlate well responses in multilayer reservoirs with single-layer solutions.