TABLE OF CONTENTS IFLO is an iterative, implicit pressure-explicit saturation finite difference simulator. It can simulate isothermal, multiphase Darcy flow in up to three dimensions. This chapter outlines procedures for entering data into IFLO, executing IFLO, and obtaining results from IFLO.
IFLO input data is divided into two parts: initialization data, and recurrent data. Chapter 21 describes initialization data which include data that is set at the beginning of the study and is not expected to change during a model run. Such data includes the reservoir description and fluid properties. Chapter 22 describes recurrent data which include data that are expected to change during the course of a simulation. Such data include well schedules and timestep control information. Appendix B presents an example input data set.
IFLO reads a file called ITEMP.DAT and outputs to files with the prefix ITEMP. The output files are described below. You should copy and rename any files you wish to save because IFLO overwrites the ITEMP.* files each time it runs.
An efficient way to prepare a new data file is to edit an old one. This will give you an example of the formats needed for most options. If you start with an old data set, make sure that you check all applicable data entries and make changes where appropriate.
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