To be effective, a geologic data-processing system must be economically feasible, user oriented, relatively simple to operate, easy to maintain, and must provide meaningful output. Output may be in the form of a map, cross section, or list. The first and most important phase in the development of a geologic data-processing system is the establishment of a network of wells among which the correlation has been standardized. This standard correlation network should cover the entire geographic area that is included by the system.

A major expense associated with the establishment of a geologic data-processing system results from gathering and encoding data. Cost reductions can be achieved by eliminating redundant and nonessential data from the file. Input costs may be reduced further by using the computer to code, format, and edit data. After the data file has been created, it can be searched by the computer for the information required to construct structure, isopach, paleogeologic, and fault-occurrence maps. Additionally, data displays such as cross sections, trend surface maps, and isometric diagrams are readily available to the explorationist.

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