Chapter 1 - Fluvial Architecture


This series of chapters is designed for geoscientists in their first few years of working in the industry, or those wanting to brush up on a range of applied geological and reservoir knowledge. The eBook will begin by covering fluvial architecture and processes from an applied perspective, followed by common pitfalls of geomodelling across several workflows, geology for reservoir engineers, and more.


Overbank fines – FF

These elements are the sedimentary expression of vertically aggrading flood basins, in which suspension settling from subaerial unconfined flows is the dominant process; bedload deposition of mud aggregates on the floodplain can also produce fine-grained floodplain units.


These elements are usually tabular or prismatic fine-grained bodies in which laterally persistent depositional increments tend to be vertically stacked and bounded by planar surfaces, demonstrating an overall aggradational character; pedogenic alteration is relatively common (Colombera et al., 2013 and references therein).

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Dr. Sarah Cobain

SarahDr. Cobain is currently a geoscientist at PDS Group UK helping the Ava team create next-generation sedimentology technology to improve reservoir characterisation and geomodelling. She earned her PhD from the University of Leeds Institute of Applied Geosciences in field-based deep-water sedimentology studying: The mechanisms, distribution, and subsurface implications of clastic dyke and sill emplacement. During her graduate studies, she completed field work in South Africa, Utah, Canada and Argentina, and gained valuable industry experience during a 3 month placement working for Statoil in their Petroleum Technology team where she collaborated with other geoscientists to forward-model outcrop scale, and map subsurface-scale, clastic injectites in the North Sea.

Dr. Cobain is the author of Chapter 1, Fluvial Architecture, in the eBook, Survival Guide to Fluvial Modelling, and has several publications with industry and academic peers including those in Geological Society of America Bulletin and Basin Research.