Permeability Module Implementation in the Cusiana Field Simulation Model to Improve History Matching of Oil

Abstract

By assuming that the properties of the rock do not differ from pressure, ie, the state's stress is constant during life of the reservoir, do not get an accurate model of what permeability changes and therefore changes transmissibility over time. For this reason it is necessary introduce the simulation model a parameter called module permeability to determine the decrease or increase permeability in production/injection processes and mold channels of preferably fluid within the reservoir. This study obtained and analyzed modules permeability different wells in the Cusiana field in arder to study the effects that impact the field in terms of changes permeability as a function of pressure differentials and thus equivalency in increasing or decreasing transmissibility. Module permeability was obtained by analyzing several different wells PBUs field by the ATS (Analytic Transient Simulator) simulator developed by the National University of Medellin. Later these modules permeability values are incorporated into the simulator Landmark VIP and assessed its impact on the production model through asensitivity analysis of parameters involved in the process of gas and water flow.