Material-balance analysis of gas and gas-condensate reservoirs with diverse drive mechanisms

摘要

Material-balance (MB) analysis for in-place volume estimation in gas reservoirs has been in practice for decades. Nonlinear responses from geopressure reservoirs with or without aquifer influx present special interpretation challenges. One of the main challenges of in-place volume estimates involves the estimation of average-reservoir pressure with production. To, that end, modern pressure sensors installed at bottomhole and/or surface largely help establish a given well's dynamic performance by way of rate transient analysis.