Introduction to deepwater introduction to deepwater. Basin evolution, configuration styles, and hydrocarbon accumulation. Overnight, marcios book revolutionized the global approach to exploration in deep water, certainly in the south atlantic and offshore africa. Giant oil and gas fields have been discovered through recent exploration in the deep and ultradeep. National and global petroleum assessment assessment of. Gcssepm 34th bfprc petroleum systems in rift basins 2015 page 1 of 44. This volume includes descriptions of the petroleum geology of more than 12 basins along the two margins discussion of various components of the petroleum systems within these basins discussion on the use of the petroleum systems concept in the south atlantic marginal basins to classify and characterize the diversity of the systems methodologies used in the assessment of petroleum system components overviews of the different components of the regions petroleum systems petroleum. Petroleum systems and results of exploration on the. Discussion of various components of the petroleum systems within these basins 3. Perkins research conference 2012 program and abstracts omni houston westside houston, texas december 25, 2012 edited by norman c.
American association of petroleum geologists, hedberg research symposium. South atlantic continental margins of africa arxiv. Relating petroleum system and play development to basin. Aapg memoir 73 petroleum systems of south atlantic margins. Introduction to deepwater introduction to deepwater petroleum systems petroleum systems case studies from. Petroleum systems asymmetry across the south atlantic. The south atlantic continental passive margins of africa comprise the major depocentres on the. The focus will be to observe and learn about key differences and similarities of the various basins and petroleum systems. To better understand the petroleum systems along the south atlantic margins, geochemical results obtained from the analysis of 290 oils from the major brazilian and west african coastal basins. Both these currents receive some contribution from the indian ocean. Recife 2017 basin and reservoir lab dalhousie university. Methodologies used in the assessment of petroleum system components 5. Finding oil and gas along the atlantic margin of nw africa.
This kind of information proves very useful when the exploration geologist is confronted with multiple petroleum systems, as in the case of the atlantic margins as. Descriptions of the petroleum geology of more than 12 basins along the two margins. To date, petrobras has discovered more than 70 hydrocarbon accumulations in the basin, including seven giant oil fields in deep water. Comment on a new scheme for the opening of the south. This includes the creation and segmentation of source rock depocenters. Tectonics and hydrocarbon distribution along the brazilian south atlantic margin p. Descriptions of the petroleum geology of more than 12 basins along the two margins 2. The purposes of this association are to advance the science of geology. Examples of these are the north and south atlantic margins with the north atlantic igneous province naip and the paranaetendeka province see map in.
Highlights basins can be classified according to their structural genesis and evolutionary history. Exploration has been highly concentrated in specific regions. South atlantic petroleum studies sapetro, 2010 concerning samples of s1 well indicate that the toc reaches 5% and hi is about 476 mg hcg toc. Pdf the namibian and brazilian southern south atlantic. The subsequent structural and sedimentary record and the response of the salt systems in the south atlantic indicate a prolonged history of spatial and temporal tectonic impacts that were rather. Petroleum systems modeling advisor after 24 years at chevron. The basins of the south atlantic passive margins are filled with early rifting stage lacustrine sediments barremian, 129125 ma, transitional lacustrine and marine sediments aptian, 1251 ma, and drift stage marine sediments since early cretaceous albian, 1 ma. This has important implications for the exploration and evaluation of petroleum systems in the frontier areas of hydrocarbon exploration. Petroleum potential of the irish atlantic margin ian vann and graham pritchard finding petroleum, tuesday october 30th 2012 n. Discussion on the use of the petroleum systems concept in the south atlantic marginal basins to classify and characterize the diversity of the systems. The american association of petroleum geologists is an international organization with over 38,000 members in 100plus countries. To better understand the petroleum systems along the south atlantic margins, geochemical results obtained from the analysis of 290 oils from the major brazilian and west african coastal basins were statistically evaluated to establish genetic relationships, distinguish source paleoenvironments and age, and identify different petroleum systems. Unraveling the dynamic interplay among tectonics, sedimentation, and petroleum systems in the subsurface is a challenge and relies on an integrated approach that combines seismic imaging, well logging, physical andor computational modeling, as well as outcrop analogs.
An opportunity to reevaluate the petroleum potential of. Schiefelbein, geochemical solutions international, houston, tx, usa and. The high risks associated with these settings originate mainly from the poor understanding of inherent geodynamic processes. The south atlantic is dominated by the anticyclonic southern subtropical gyre. M73 cd petroleum systems of south atlantic margins. The namibian and brazilian southern south atlantic. The new starting point for the south atlantic ocean by moulin et al. Chapter 1 petroleum systems of south atlantic marginal basinsan overview. Petroleum systems in the south atlantic margins geological.
A deep river and dan river danville total petroleum systems tps and assessment units au for continuous gas accumulation atlantic margins jeffrey c. She has worked in over 40 countries and is author or coauthor of numerous internal studies and external abstracts and papers. Effect of the tristan mantle plume on development of south. These reservoirs contain enormous quantities of oil and natural gas but pose a technology challenge to both geoscientists and engineers to produce economically on a commercial scale. The dkc basin is separated from the rdr basin by the cameroon volcanic line figure 1 and is the northernmost basin formed during rifting and separation of the south atlantic conjugate margins, a province harbouring prolific hydrocarbon accumulations. Petroleum system of the campos basin, brazil petroleum. Only 32 of 144 quadrants have been drilled, with only one prolific province discovered the faroeshetland basin, where 23 finds have resources totalling. Petroleum systems of offshore cabinda, angola petroleum. Two papers were submitted and published recently on the same topic. Relating petroleum systems and play devel opment to basin evolution. Dynamic interplay among tectonics, sedimentation, and. The south atlantic central water originates in this gyre, while antarctic intermediate water originates in the upper layers of the circumpolar region, near the drake passage and the falkland islands. Margins of the atlantic region integrated multidisciplinary basin analysis commercial nonexclusive petroleum systems studies of south and central atlantic margins basins.
The postsalt petroleum system in the atlantic margins lies above the regional salt layer and was deposited on the western margins of the growing south atlantic ocean under conditions of normal marine shelves and deepwater slopes. Petroleum potentials of the nigerian benue trough and. Petroleum geochemists have concurrently examined the nature and distribution of these associated. Along its two coasts, 25 passive continental margin basins figure 1 have been explored, 80% basins are in deepwater setting. 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. The geologic definition of total petroleum systems tpss and assessment units aus reflect. Niger delta petroleum systems, nigeria petroleum systems. Aapg store american association of petroleum geologists. The latter can be linked to petroleum system and play development. National and global petroleum assessment assessment of unconventional tightgas resources of the magallanes basin province, chile, 2015. The history of petroleum operations in the south atlantic. And marcio mello, formerly of petrobras, wrote the book on the subject literally, entitled petroleum systems of south atlantic margins, published in 2001. We demonstrate the link between basin evolution and petroleum system development.
The west african marginal basins experienced a similar tectonostratigraphic evolution. The project will jointly examine the oceanic and continental records of plumelithosphere interaction. Central and south atlantic conjugate margin pre and post. Petroleum systems of south atlantic margins, by mello. The marginal basins along the south atlantic have developed into one of the most active regions for petroleum exploration. The postsalt system is divided also into two main units. Abstract using a new margin restoration model for the central south atlantic we highlight marginopposed rift basin subsidence characteristics, reconcile important facies relationships and consider the associated processes responsible for contrasting basinward transitions to oceanic crust.
Basin and petroleum system modeling bpsm 7th annual. Although organicrich sediments have often accumulated in anoxic. Mesozoic rift basins onshore north carolina and south. Giant oil and gas fields have been discovered through recent exploration in the deep and ultradeep water regions of angola, brazil, and nigeria.
The basins of the south atlantic passive margins are filled with early. He has a vast international experience ha ving spent 12 years on s atlantic margins including. Petroleum systems, south atlantic, conjugate basins introduction continuing research has clarified the tectonostructural history of the atlantic conjugate margins. Aim to improve tools fo r crossdisciplinary interpretation of multiple basins and their associated hydrocarbon systems. Ireland has recently experienced a surge in activity with the issuing of 28 licensing options in the 2015 atlantic margin licensing round, which now brings the number of active. Central and south atlantic conjugate margin pre and postsalt successions. New understanding of the petroleum systems of continental margins of the world i new understanding of the petroleum systems of continental margins of the world 32nd annual gulf coast section sepm foundation bob f. M73 cd petroleum systems of south atlantic margins aapg. Imo formation the paleocene to eocene imo shale fig. Discussion of various components of the petroleum systems within these basins.
Salt structures and the petroleum potential of continental margins in west iberia, newfoundland and south atlantic faulting of saltwithdrawal basins during early halokinesis. South atlantic margin processes and links with onshore. Geology and petroleum systems of the offshore benin basin. Geodynamics of the central south atlantic conjugate. Angola within a regional south atlantic context using megaregional seismic data lisa fullarton, ion geophysical the creation of the african margins and the mesozoic demise of gondwana colin reeves, earthworks the structural and tectonic evolution of the west and equatorial african margins.
Results obtained from the detailed geochemical analysis of more than 150 crude oils were used to. New frontiers, extended to all the margins of the atlantic, with regional focus on the south atlantic and african coastlines. Implications to rift models and petroleum systems david e. Production from unconventional petroleum reservoirs includes petroleum from shale, coal, tightsand and oilsand. Pdf petroleum systems of the central atlantic margins, from. It is composed of two subsystems demaison and huizinga, 1991. Defining frontier petroleum systems with higher granularity. We interpret these parameters as diagnostic of strain evolution during rifting. This was an excellent forum for researchers and industry to share the latest insights on margin evolution and petroleum prospectivity in the south atlantic conjugate basins. Kosmos has proven to be one of the leading explorers along the atlantic margins over the last decade, and the most successful in north west africa, in terms of discovery rate, volume of.
Ireland and newfoundland labrador are commonly accepted as conjugate margins and both contain substantial yetto find petroleum potential. They have their origins in the multiphased rift systems that were. Mesozoic rift basins onshore north carolina and southcentral virginia, u. A petroleum system is the oil and gas machine that generates and concentrates hydrocarbons within a basin over geologic time. Use of the petroleum system concept in south atlantic marginal basins provides an effective means of classifying and characterizing the diversity of the systems and a way to aid in the selection of appropriate exploration analogs. South atlantic marginal basins provide some of the best examples of how petroleum systems evolve. This volume includes descriptions of the petroleum geology of more than 12 basins along the two margins discussion of various components of the petroleum systems within these basins discussion on the use of the petroleum systems concept in the south atlantic marginal basins to classify and characterize the diversity of the systems methodologies.
Petroleum systems located at passive continental margins received increasing attention in the last decade mainly because of deep and ultra. She has spent many years working south atlantic margins, asia and eurasia. This twintrack approach has already proved successful in studying the impact of the iceland mantle. It is generally accepted that a lack of charge hinders the development of petroleum systems in oceanic basement. Tectonic reconstructions made across the southern south atlantic ocean indicate a diversityof rift and driftbasincharacteristics on the conjugate margins thatde. Basin evolution, configuration styles, and hydrocarbon. Genetic comparison of crude oils from west africa and. Pdf coastal exposures of mesozoic sediments in the wessex basin and channel subbasin southern uk, and the lusitanian basin portugal provide keys. Participants will evaluate basin setting and play types by interrogating seismic data in these areas.
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