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Students showcasing research posters at the 2015 GCEP Symposium

ERE Seminar: Zoya Heidari (Texas) | "Advanced Formation Evaluation in Reservoirs with Complex..."

November 8, 2021 - 12:15pm to 1:15pm
Virtual Meeting via Zoom (see login details in Description)
Event Sponsor: 
Energy Resources Engineering
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NAMEZoya Heidari | Associate Professor, Petroleum and Geosystems Engineering, University of Texas at Austin

TITLE"Advanced Formation Evaluation in Reservoirs with Complex Solid-fluid Interfacial Interactions, Pore Structure, Rock Fabric, and Geochemistry"

ABSTRACTComplex rock fabric (i.e., spatial distribution of rock constituents), composition, pore structure, solid-fluid interfacial interactions (e.g., wettability and cation exchange capacity), and geochemistry make formation evaluation of reservoirs such as carbonates and organic-rich mudrocks challenging. The conventional formation evaluation methods often do not quantitatively assimilate the aforementioned complexities in rock properties. This can lead to unreliable estimates of reserves and formation properties as well as poor decisions for production and low recovery factors. This presentation focuses on (a) evaluating how geochemistry of rock and fluids in porous media affects solid-fluid interfacial interactions such as wettability and (b) quantifying the impacts of wettability on borehole geophysical measurements (e.g., electrical and Nuclear Magnetic Resonance measurement). Novel methods will be introduced to estimate wettability using geophysical measurements and to reliably incorporate it in formation evaluation efforts to enhance reservoir characterization in challenging formations such as mixed-/oil-wet carbonates and organic-rich mudrocks. Outcomes of recent research advancements will be presented to demonstrate improvements in assessment of hydrocarbon reserves and rock-fluid interfacial properties.

REFERENCESResearch Website:

BIOZoya Heidari is an Associate Professor in the Hildebrand Department of Petroleum and Geosystems Engineering at The University of Texas at Austin. Before joining UT Austin, Zoya was an Assistant Professor at Texas A&M University from 2011 to 2015.  She has been the founder and director of the UT Austin Industrial Affiliate Research Program on “Multi-Scale Rock Physics” since 2016. She was also the founder and the director of the Texas A&M Joint Industry Research Program on “Multi-Scale Formation Evaluation of Unconventional and Carbonate Reservoirs” from 2012 to 2015. Among her many awards, Zoya is the recipient of the 2021 SPWLA Distinguished Technical Achievement Award, the 2020 SPWLA Young Professional Technical Award, the 2019 EAGE Arie van Weelden Award, the 2019 AIME Rossiter W. Raymond Memorial Award, the 2019 SPE Distinguished Membership Award, and the 2017 SPE Cedric K. Ferguson Medal. Her research interests include Petrophysics, Rock Physics, Multi-Scale Formation Evaluation, Borehole Geophysics, Integrated Reservoir Characterization, and Completion Petrophysics.

*If you are a Stanford Affiliate outside of Energy Resources Engineering department and would like to attend, please contact Emily Gwynn ( for the Zoom Meeting link and passcode.

*If you are in Energy Resources Engineering department, you will receive an announcement from Emily Gwynn ( with the Zoom Meeting link and passcode.

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