The Atypical Permian Petroleum System of the Paraná Basin, Brazil
Published:January 01, 2000
L.M. Araújo, J.A. Trigüis, J.R. Cerqueira, L.C.da S. Freitas, 2000. "The Atypical Permian Petroleum System of the Paraná Basin, Brazil", Petroleum Systems of South Atlantic Margins, Marcio Rocha Mello, Barry J. Katz
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In the Permian petroleum system of the Paraná Basin, organic-rich source rocks (Assistência Member of the Irati Formation) were thermally matured by the heat of Cretaceous basic igneous intrusions (diabase sills) of varying thicknesses (few centimeters up to 240 m). This constitutes an atypical petroleum system, characterized by the synchronism of generation and migration processes with the magmatism (138–127 Ma). During this period, countless generation and migration pulses occurred from multiple generation kitchens that were not related to the basin depocenter, in sharp contrast to basins in which thermal maturation is controlled by increasing burial.
The total volume of hydrocarbons generated by the thermal effect of the magmatism (petroliferous charge) was calculated, mapped, and interrelated with other processes (trapping, migration, and accumulation) and essential elements (reservoirs and seal) to unravel the temporal and spatial relationships of this atypical Permian petroleum system.
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Petroleum Systems of South Atlantic Margins
“Giant oil and gas fields have been discovered through recent exploration in the deep and ultra-deep water regions of Angola, Brazil, and Nigeria. This volume includes 1. Descriptions of the petroleum geology of more than 12 basins along the two margins 2. Discussion of various components of the petroleum systems within these basins 3. Discussion on the use of the petroleum systems concept in the South Atlantic marginal basins to classify and characterize the diversity of the systems 4. Methodologies used in the assessment of petroleum system components 5. Overviews of the different components of the region's petroleum systems. Petroleum explorationists and researchers working in the South Atlantic will welcome this addition to their libraries.
The printed version of Memoir 73 was the Winner of the 2000 Dott Award for best AAPG Special Publication.”