E-Book Three-Phase Of Oil Reservoirs With Mass Fraction Formulation

E-Book Three-Phase Of Oil Reservoirs With Mass Fraction Formulation

Numerical simulation of oil reservoirs is an indispensable tool for monitoring new oil fields as well as managing mature reservoirs. Depending on the types of fluids resident in the reservoir, different models can be applied. In principle, recovery techniques are divided into three basic categories: primary recovery techniques, secondary recovery techniques, and tertiary recovery techniques. Each of these techniques originates from a set of differential equations that can predict the reservoir’s production over time. These sets of equations generally do not have an analytical solution due to the non-linear and coupled characteristics of the equations. Therefore, a numerical tool must be used to predict reservoir production. In what follows, the main recovery techniques and the finite volume technique that will be used in this work are described.

Most commercial and academic simulators used and still use cartesian meshes because they are easy to make, make it easy to get flows, and create a linear system with a known bandwidth. However, the use of this type of mesh presents some problems. Notably, when mapping the irregular boundaries of the reservoir and representing geological faults and fractures, which, as they generally have irregular shapes, make it difficult to correctly discretize these characteristics of the reservoir using this type of mesh.

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