Abstract
With the advent of more powerful personal computers and corresponding graphical software, it is possible to integrate large geochemical crude oil data bases with geographical information system software. In addition, classification of crude oils based on genetic origin using multivariate modeling techniques can be accomplished on the same platform. This allows for the effortless mapping of geochemical parameters ranging from bulk characteristics such as percent sulfur to specific biomarker ratios like the gammacerane index. Oil families determined from principal component and cluster analyses can be mapped. Biomarker mass chromatograms, stored as pictures in the data base, can also be accessed from a map view. Microsoft's[reg sign] Access data base software, Esri's ArcView[reg sign] GIS mapping software, and InfoMatrix's Pirouette[reg sign] statistical modeling programs, along with Adobe's Acrobat[reg sign] electronic publishing software can all be tied together using a Pentium[reg sign] class personal computer under Microsoft's Windows operating system. An example of a geochemical study of almost 200 oils from Venezuela will be illustrated.
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