| This work consists of combining a Finite Difference Method (FDM) dry gas model, with a Dual Reciprocity-Boundary Element Method (DR-BEM) dry gas model to develop a hybrid "MESH" model. The hybrid models a vertical well in a dry gas reservoir.; Presented in this work is a historic aspect of petroleum reservoir modeling, a review of the background on FDM, Boundary Element Method (BEM), DR-BEM modeling techniques, and the combination of the FDM and BEM techniques. During a literature search there were no references found on the use of the DR-BEM in the Petroleum Industry. Also presented is a theoretical background on the modeling techniques used in the hybrid "MESH" model. Also outlined is the theory of the mesh technique used to develop the model. Comparisons of the results from FDM, BEM, DR-BEM, MESH, and analytical models show the validity of the developed hybrid MESH model. These results are from various aquifers and gas reservoir configurations.; This work shows that the combination of finite difference and boundary element methods is a viable technique to model dry gas reservoirs. The combined model provides the ability to easily model rapid changes in fluid properties at near wellbore conditions, and the ability to model an irregularly shaped outer boundary. |
