[Alumnos] SEG Honorary Lecture 2018

[Sociedad Geofísica de la UNLP]

La Sociedad de Alumnos de Geofísica de la FCAG-UNLP (SEG Student Chapter) tiene 
el agrado de invitarlos a participar de la charla titulada "How recent advances 
in seismic depth imaging can enhance prospect identification and appraisal". La 
misma estará a cargo del Prof. Ruben D. Martinez, y se desarrolla en el marco 
del "Honorary Lecture Program" organizado por la Sociedad de Geofísicos de 
Exploración (SEG).
La charla tendrá lugar el lunes 27 de agosto a las 15.30 hs., en el Salón 
Meridiano de la FCAG.

Los esperamos!!

Resumen de la charla:
Seismic depth imaging has matured and become a powerful tool in petroleum 
exploration to accurately map complex structural frameworks. In particular, 
over the last few years, more accurate seismic imaging methods have emerged 
leading to increased resolution of velocity models and seismic images.
High-resolution velocity models and images enhance the accuracy and value of 
interpretation not only in exploration but also in the appraisal phase and, in 
some cases, field development planning.
So how is this high resolution achieved?
Velocity model resolution improvement is achieved by extracting the information 
content of the seismic amplitudes and phases, in addition to the traveltimes, 
using advanced methods such as full waveform inversion (FWI). FWI velocity 
models have resolutions beyond those obtained from classical traveltime 
tomography.
High-resolution velocity models deliver not only more accurate structural 
images after conventional migration (Kirchhoff, Beam, WEM, or RTM) but they 
also can be used to enhance prospect identification, prospect appraisal and to 
de-risk drilling by using advanced migration methods such as Q migration 
(QPSDM), imaging of primaries and multiples, diffraction imaging, and least 
squares migration (LSPSDM).
It is important to recognize that all conventional and high-resolution velocity 
model building and migration techniques should also incorporate different types 
of seismic anisotropy depending upon which one fits best the geologic scenarios 
present in the areas of study.
In this lecture, I will provide an overview of the most popular conventional 
and high-resolution anisotropic velocity model building and migration 
techniques used in the industry. The strengths and weaknesses of these 
techniques will be discussed, and illustrated, to understand their resolution 
limitations.
I will also discuss and illustrate, with model and real data, the performance 
of these depth-imaging techniques according to the resolution requirements for 
the geologic scenarios commonly encountered in conventional and unconventional 
prospect identification and appraisal with the aim of de-risking drilling.
The lecture will end with comments on my expectations about the future of 
depth-imaging technology and its impact on conventional and unconventional 
petroleum exploration, appraisal, and development.


Biografía:
Ruben D. Martinez is a petroleum geoscience consultant and instructor with 
Reservoir Geoscience, LLC. He has been active in the seismic industry for 40 
years.
Martinez was associated with Geophysical Service Inc. (GSI) as R&D reservoir 
geophysicist, Halliburton Geophysical Services (HGS) and Western Geophysical as 
senior research geophysicist, AGI as director of seismic reservoir 
characterization and Petroleum GeoServices (PGS) as manager signal processing 
R&D, VP processing R&D, VP seismic processing technology, global chief 
geophysicist I&E and chief geophysicist I&E NSA. His responsibilities in PGS 
included directing global R&D and software commercialization of processing and 
imaging technologies. As chief geophysicist, he was responsible for the 
supervision and quality assurance of depth-imaging projects, customer liaison, 
the promotion of best practices, and the commercialization and use of high-end 
technology.
Martinez is author and coauthor of more than 70 technical papers published 
and/or presented at international conferences and 12 patents on seismic data 
acquisition, processing, and imaging. He has also made numerous technical 
presentations at international conferences and has taught numerous courses and 
conducted seminars and workshops on seismic processing and imaging.
In 2005, he was invited to present the annual Milton B. Dobrin lecture at the 
University of Houston. He is currently an instructor of the Continuing 
Education Program of the Society of Exploration Geophysicists (SEG) and the 
European Association of Geoscientists and Engineers (EAGE). He is a member of 
the SEG Board of Directors as director at large.
Martinez was the recipient of the 2014 Mexican Association of Exploration 
Geophysicists (AMGE) geophysics award for life-long achievements to geophysics.
He earned a BSc in geophysics from the Instituto Politecnico Nacional (Mexico), 
MSc in geophysics from the Colorado School of Mines and a PhD in geosciences 
from the University of Texas at Dallas.
He is a member of SEG, EAGE, Geophysical Society of Houston (GSH), American 
Association of Petroleum Geologists (AAPG) and Mexican Association of 
Exploration Geophysicists (AMGE).

Para más información sobre el disertante y el resumen expandido de la charla 
visitar: https://seg.org/Education/Lectures/Honorary-Lectures/2018-HL-Martinez



Sociedad Geofísica de la UNLP (SGUNLP)
SEG Student Chapter
FCAGLP

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