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

This paper presents the visualized analytical model including cross-flow effect for analyzing the horizontal well test data obtained from multi-layered reservoirs. The model adapted pressure averaging method of uniform flux model with the aid of reflection and transmission method in order to consider the cross-flow effect. The objective of this study is to identify the flowing regimes by analyzing pressure curves acquired by horizontal well test, and hence it is able to characterize the reservoir better. The designed system of this study is two-layered reservoir with cross-flow and the horizontal well is located at the bottom layer. In this analysis, analytical model has been applied for the various values of vertical and horizontal permeabilities, thickness of the formation as well as fluid viscosity. As a result, we observed the characteristics of pressure curve, which are first radial flow, linear flow, and second radial flow period.