Pressure Distribution of Heavy Oil Reservoir at Different Temperatures

Abstract

Evolution law of heavy oil dimensionless pressure on different points at varied temperature, water content, asphalt content and particle diameter were simulated with boundary element method (BEM). Physical model and mathematical model were established and variable coefficients Darcy’s equations were calculated with BEM. The numerical simulation results are as follows: Temperature has very obvious effect on dimensionless pressure for all points in the heavy oil reservoir. Dimensionless pressure decreases with the decrease of particle diameter when the temperature is fixed. Effect of water content on dimensionless pressure is inconspicuous when the water content in heavy oil is less than 10%. Numerical simulation results can provide quantitative theoretical basis for the heavy oil well pattern.