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Presenter: Alexander Mihai Popovici, CEO, Z-Terra
Current research in the field of seismic depth imaging has identified a new approach to image with super-resolution small scale faults, pinch-outs, salt flanks, reflector unconformities, in general any small scattering objects, by using Diffraction Imaging as a complement to the structural images produced by reflection imaging. High resolution imaging of the small scale fractures in shale reservoirs like Eagle Ford, Bakken, Niobrara, Utica and Woodbine, reduces the field development cost and improves the production and recovery efficiency, by imaging and delineating the areas with high fracture field density, associated with increased oil and gas production in unconventional shale reservoirs. By identifying the areas with increased natural fracture density, the reservoir engineers can design an optimal well placement program that targets the sweet spots, areas with increased production, and minimizes the total number of wells used for a prospective area.
1. Overview of Diffraction Imaging (DI)
a. Diffraction and scattering theory.
b. Specular reflections vs. diffractions.
c. DI implementation in Kirchhoff time and depth migration.
d. Pre-processing pitfalls in removing diffractions.
2. Diffraction imaging examples and comparisons.
a. Synthetic examples.
b. Real data examples.
c. Amplitude with azimuth.
i. Direction of stress fields.
ii. Visualize azimuthal dependence.
d. Correlation of diffraction imaging attributes with production.
e. Direction of stress fields.
f. Sharpening the image with Principal Component Analysis (Single Value Decomposition) along horizons using azimuthal specularity gathers to enhance the image resolution.
Presenter Biography: Alexander Mihai Popovici, CEO, Z-Terra Inc.
Alexander Mihai Popovici is Chief Executive Officer and Chairman at Z-Terra Inc., a provider of state-of-the-art geophysical and geological technology, services and software for the upstream oil and gas industry. He holds Ph.D. (1995) and M.Sc. (1991) degrees in geophysics from Stanford University, and an equivalent B.S. (1985) in geophysical and geological engineering from University of Bucharest, Romania. He escaped from Romania in 1986 and spent a year in a refugee camp in Austria. Dr. Popovici was co-founder and CEO of 3DGeo Inc. He is the Honorary Consul of Romania in Houston.
He has nine patents in the field, over 100 publications in conference proceedings, books, trade journals, and research reports and has given numerous invited talks at conferences, geophysical associations, and geophysical workshops. He has been a member of the SEG Research Committee, served as Associate Editor (Seismic Migration) for Geophysics, and is past Chairman and founding board member of Geoscientists Without Borders, an SEG Foundation program that funds humanitarian applications of geophysics around the world. He was the 2017 SEG Houston Technical Program Chairman and served on the SEG Board as Vice President from 2017 to 2019.
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