Aspects of the technology described herein make legacy hydrocarbon studies accessible to modern computer analysis. Whatever the initial format, the technology described herein analyzes the studies to identify characteristics that are interesting to people who study hydrocarbon environments. As an initial process, various segments within a hydrocarbon study received by the technology described herein are identified. The various segments can include text, maps, charts, and tables. Within each of these segments, specific types of text segments, maps, charts, and tables may be identified. For each segment identified, characteristics of interest may be determined through analysis of the segment. In one aspect, segment-specific analysis is performed on each type of segment. Different technologies may be used for different segments. Once the characteristics are identified, they may be stored in association with both the overall document and with a segment of the document from which the characteristic of interest was extracted.
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