COMPREHENSIVE APPLICATION OF A COMPOSITE RESERVOIR MODEL TO PRESSURE TRANSIENT ANALYSIS.
This paper presents analytical solutions for interpreting pressure transient tests for wells producing from a finite composite reservoir system. We also present rate solutions and methods for analyzing long term production data and forecasting production of oil or gas in a finite composite reservoir. The results demonstrate that a composite reservoir model can be used to analyze wells with a high negative skin or wells intercepting a finite or an infinite conductivity hydraulic fracture. The differential equations for continuity of mass flow in the two regions are solved using Laplace transformation techniques for both the constant rate and constant pressure inner boundary conditions. The pressure solution is presented for a well in a finite or infinite-acting reservoir with wellbore storage effects. Both finite and infinite-acting reservoir solutions are presented for the constant pressure case. Pressure and rate solutions are presented for different values of effective fracture permeability and effective fracture lengths. The pressure and rate solutions for reservoirs with a fluid bank are also presented. This paper presents three field examples to demonstrate the application of the type curve analysis method to buildup and falloff test data.
author list (cited authors)
Olarewaju, J. S., & Lee, W. J.
complete list of authors