The Rovuma Basin is located along the eastern margin of northern Mozambique and southern Tanzania, forming one of a series of continental passive margin basins that stretch along the coast of East Africa. The basin covers onshore and offshore areas for approximately 64,000 Km2. The correct definition of the geological evolution of an area is of primary importance for a proper assessment of its petroleum potential; in the present work an integrated approach, based on seismic interpretation, structural analysis and 2D Gravimetric/Magnetic modelling, has been applied on three different interpreted seismic sections to provide more predictive and reliable geological models. The Gravimetric/Magnetic modelling has contributed to the definition of the Rovuma Basin architecture by testing two possible geological scenarios: one with a shallow top basement surface and another with a deep top basement surface, both interpreted on seismic data. Through the integrated potential methods study one of the above scenarios has been validated. The results of the integrated workflow could be summarized as:–proper basement surface depth scenario definition;–description of the main structural lineament geometries;–basaltic bodies geometry and location definition;–characterization of continental, transitional and oceanic crusts and definition of a possible Continental Ocean Boundary (COB) location. The mutual support between the structural studies and potential method teams has been the key to improve the geological knowledge in frontier exploration areas. Introduction The correct definition of the geological evolution of an area is of primary importance for a proper assessment of its petroleum potential. In the present work an integrated approach, based on seismic interpretation, structural analysis and 2D Gravimetric/Magnetic modelling, has been applied on three different interpreted seismic sections to provide more predictive and reliable geological models. 2D Gravimetric/Magnetic modelling are non-unique, many models may provide calculated gravity responses that will fit the observed profiles. However, with some geological control, sensible assumptions and knowledge of likely structural styles, the results can be constrained reasonably well. By combining geological and geophysical interpretations on three differently oriented interpreted seismic sections, the tectonic evolution of the Rovuma Basin has been investigated (Fig.1). The Gravimetric/Magnetic modeling has contributed to the definition of the Rovuma Basin architecture by testing two possible geological scenarios: one with a shallow top basement surface and another with a deep top basement surface, both interpreted on seismic data as possible basement. Through the integrated potential methods study one of the above scenarios has been validated.
3D Petroleum System Modeling Study has been developed by using the Eni E&P Division internal package (e-simba™) in order to evaluate the petroleum potential of the Pearl River Mouth Basin, in the South China Sea. Pearl River Mouth Basin is a Mesozoic-Cenozoic passive margin rift basin oriented NE-SW and parallel to the continental shelf. Within the Basin two main source rocks are recognised in the syn-rift succession: the organic levels of the Enping Formation, Oligocene in age and mainly terrestrial, and those of the Wenchang/Enping Formation, Oligocene/Eocene in age and mainly lacustrine. Based on geochemical analysis of well data, the Enping source rock is modelled by using terrestrial kerogen type, TOC 1%, HI 250 mgHC/gTOC, 100 m of thickness and kinetics from analogue of Mahakam Delta. The Wenchang/Enping source rock is modelled by using lacustrine kerogen type, TOC 4%, HI 600 mgHC/gTOC, 100 m of thickness and kinetics from analogue of Green River. Thermal data coming from wells and confirmed by literature suggest an average geothermal gradient of 35°C/km. The heat flow values at Present time match with well data. The creation of heat flow map was done by using a geostatistical approach, kriging with external drift method - software ISATIS, and by considering the correlation between the calibrated heat flow value at single well and the geological trend. Over the study area the heat flow trend correlates both with seismic and magnetic basement. The results of thermal model integrated with geochemical well data (CO2 and gas maturity) show that the heating better correlates with seismic basement and allow to define the positioning of the organic matter level. A terrestrial source rock can be located in the shallower part of the Eocene/Oligocene sequence while a lacustrine one can be localised in the depocentral area at the base of the same sequence.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.