Abstract An interactive data input program has been developed in the C language to aid creation of data files for five enhanced oil recovery predictive models. The program is designed to run on an IBM PC or compatible microcomputer with transfer of the files to a mainframe for use. It contains several features to assist the end user and speed up data entry including menus, windowing, context-sensitive help, choice lists for variables, and data validity checks.
Introduction Simulation and modeling are powerful tools for the petroleum engineer. They can provide insight to reservoir behavior, confirm beliefs or bring new questions to light. Results from a computer simulation depend on a number of factors including model options, accuracy of data entered, and the integrity of the data file.
Many reservoir and enhanced oil recovery (EOR) models use data from disk files on the mainframe computer on which the model is running. This is the case with five enhanced oil recovery models, named below, available from the Department of Energy (DOE). The models were developed by Scientific Software - Intercomp for the National Petroleum Council (NPC) and DOE's 1984 survey of U. S. enhanced oil recovery potential. The five models are: Polymer Flood Predictive Model (PFPM) (containing a waterflood option), Carbon Dioxide Predictive Model (CO2PM), In-Situ Combustion Predictive Model (ICPM), Chemical Flood Predictive Model (CFPM) and Steam Flood Predictive Model (SFPM). Currently, the data files for these models require tedious data entry using a text editor to prepare them for use. There are no prompts for the user, nor data validity checks to help build the data files. This requires the user to have knowledge of each model's utilization of its data file to insure correct assignment. The student or engineer who does not deal with the model on a day to day basis may find that building the data files is so laborious that he may not proceed with the run.
An interactive data entry program has been developed for an IBM PC or compatible microcomputer to easily create data files for use with these EOR predictive models. It is written in the C language and employs a commercial screen utility package. The program facilitates entry of variables ranging from reservoir characteristics to economic tax parameters. New data files can be created or existing ones edited. Context-sensitive help is available and messages appear on the screen to aid the user in the data entry process. The program allows the user select items from pop-up menus. enter default values, or input new values. - Entries are checked against ranges of values to comply with the models' requirements where applicable. The data file created with this program is ready for transfer to the mainframe for use in the ennanced oil recovery predictive models. No knowledge of the required file format is needed to create it.
CURRENT SYSTEM The mainframe computer is an ideal tool for small simulation projects or predictive model runs. Uncertainties and variabilities in both reservoir and economic conditions can be analyzed quickly.
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