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LGS Luncheon – October 2016

Abstract:

Contrasting Structural Styles Brazilian and West African South Atlantic Volcanic and

Non-Volcanic Margins: the Impact on Pre-Salt Petroleum Systems.

The South Atlantic Pre-Salt petroleum system has unique elements which are related to the basin bounding structural fabric, accommodation space and climatic conditions.  The development of both high TOC Lacustrine source rocks and hyper-saline/ hyper-alkaline microbial carbonates requires sequestration of these basins from marine conditions.   Sequestration is accomplished by an outer-high which was Isostatically elevated by magmatic under-plating.  This magmatic under-plating occurs along the margin from the Santos Basin to the Espírito Santo Basin and the conjugate Kwanza Basin.

Where the outer-high is absent, such as in the Brazilian Pelotis Basin the Pre-Salt petroleum system fails to develop.  In Gabon where under-plating and basin sequestration occurs, a Brazilian style pre-salt system fails to develop, due to high clastic influx. Gabon lacks the microbial hyper-saline carbonate reservoir.  Similar Brazilian style Pre-Salt Petroleum systems are likely to occur on other passive margins where similar structural styles create a sequestered basin. We can expect to find these basins to in regions which are transitional from classic volcanic margins to true non-volcanic margins Through better understanding of the Brazilian Pre-Salt geodynamic setting we can position ourselves to identify new basins with similar petroleum systems which have created the giant Brazilian Pre-Salt discoveries.

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Bio:

Frank Love

Frank Love is a working geoscientist with 40 years of experience.  This experience includes onshore USA where he has worked 14 different States, he also has direct experience in 38 countries. His career has included positions at Unocal, Phillips Petroleum, Shell, and BHP.  Frank is currently a Senior Geophysical Advisor New Ventures, Ecopetrol America Houston Texas.

This experience ranges from well-site and field geology to quantitative geophysics.  He has taught courses on Play Based Exploration, Regional Geologic Interpretation, and Advanced Seismic Interpretation.

Frank has published across a wide range of topics including Sequence Stratigraphy, Deepwater Depositional Systems, Salt Tectonics, and Geophysical Interpretation. His current research focus is South Atlantic Rifting and the Pre-Salt Play.

Contact Info:

Frank.love.geo@gmail.com

281-536-4861

 


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