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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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Several aspects of petroleum exploration are concerned with numerical values, such as the structural elevation of a given formation, net sand thicknesses, water saturations, or interval velocities. Microcomputers provide an interactive way for a geologist or geophysicist to generate on-demand, exploration related values, maps, or other output.
Geologic examples include the use of best-fit trend surfaces for exploration in the Cretaceous of the Denver basin and the use of double Fourier series to model oil-productive paleotopography in the eastern Powder River basin of Wyoming.
Geophysicists are more accustomed to mathematical treatment of their data. In the Michigan basin exploration area, a microcomputer is being used to generate synthetic seismograms from sonic log data. These are then used to model seismic response for differing stratigraphic conditions. Data from the coastal plain area of Alaska have also been input to a microcomputer which then computes and plots several parameters including time, depth, average velocity, and interval velocity as well as subcropping and onlapping intervals at unconformities.
As a result of their versatility, on-demand accessibility, and relative computing power at a small price, microcomputers are being used in expanding applications in petroleum exploration.
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