Geochemical Solutions International Inc. (GSI) is conducting a geochemical study of crude oils from the basins along the central margin of Brazil designed to identify and compare the petroleum systems that have contributed to accumulations in this important area. The studied basins include Sergipe-Alagoas, Reconcavo, Camamu-Almada, Jequitinhonha, Cumuruxatiba, Mucuri and Espirito Santo. Approximately one hundred (100) crude oils from this area will be analyzed using state-of-the-art oil fingerprinting techniques to evaluate the major factors governing oil quality and quantity including: (1) source facies, (2) thermal maturity, (3) distance of migration from source to trap, (4) extent and timing of biodegradation, and (5) degree of oil mixing.
GSI is also conducting a geochemical characterization of potential source rock samples from this area in a two phased study designed to evaluate the organic richness, hydrocarbon-generating potential, oil proneness, and thermal maturity level of all potential source rock intervals in the Camamu-Almada, Jequitinhonha, Cumuruxatiba and Mucuri basins in order to assist exploration efforts in the less developed regions. Phase 1 will involve evaluation of source potential based on total organic carbon (%TOC) and Rock-Eval pyrolysis data from more than 4,500 samples representing more than 72,000 m of section from more than 35 wells. Phase 2 will include detailed source characterization of approximately eighty (80) well cuttings and/or core samples based on detailed kerogen and/or bitumen analyses.
Crude oil and source rock analyses will be performed at Baseline Resolution, Inc. in Houston. The analytical data will be issued during the course of the study. An interpretative report will be issued at the completion of the project.
Results of the study will be presented in both analytical and interpretive formats to insure that all findings are accessible to explorationists and research personnel. All geochemical data will be provided in hard copy and in digital format in a database contained on CD, which will include a proprietary data browser to facilitate access. A synthesis and interpretation of all information will be presented in a series of comprehensive final reports including oil-oil and oil-source rock correlations, oil quality, hydrocarbon source potential, oil proneness and thermal maturity.
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