The one-day courses are scheduled to take place on Sunday, 30 July and Monday, 31 July 2017, from 8:30am to 4:30pm. at SulAmérica Convention Center.
None of these courses are included in the Conference Registration Fee. Each of these courses requires a separate fee.
There will be no simultaneous translation for all short courses.


Sunday, 30 July

SC1 - Fundamentals of Full Waveform Inversion

Syllabus:

This course is offered to a wide-range audience, and should be conceptually accessible and beneficial to professionals from the industry and from the academy, to undergratuate students and to non-seismologists. In spite of its accessibility, this course provides accurate and deep understanding on the fundamentals of full-waveform inversion. It follows a clear and intuitive approach, connecting the dots between basic conncepts and up-to-date industrial applications.

  1. Context: historical background, remarkable results and relation with other methods.
  2. The forward problem: Physics and Computation go hand in hand.
  3. Non-linearity and scattering series.
  4. Inverse problem: global and local optimization strategies.
  5. Gradient computation.
  6. Hessian computation.
  7. Gradient kernels: transmission, migration isochron and back-scattering components.
  8. Cycle-skipping and local minima.
  9. Wavelength decomposition of model and gradient.
  10. Multiscale approach: how do frequency, offset, gradient wavelength and linearity club together.
  11. The choice of the appropriate objective function.
  12. Gradient conditioning.
  13. Frequency versus time domain FWI.
  14. Multiparameter FWI: how does density, anisotropy, shear-velocity and viscoelasticity fit in?
  15. A word on source signature.
  16. Different flavors of FWI.
  17. FWI as a tool for migration velocity-model building.
  18. Seismic processing for FWI.
  19. A critical standpoint: where and when to apply FWI?
Lecturer: Julio Frigério (Petrobras) Julio Frigério

Júlio has an undergraduate degree in Physics from Universidade Federal do Rio de Janeiro (2005), and master of science degree in geophysics from Colorado School of Mines (2011).
He has been working with geophysics in Petrobras since 2006. There, he worked with seismic processing for 3 years and has been working in the Geophysical Technology team since 2012, where he is committed to the development of new technologies and multiple geophysical topics. His major area of interest is seismic imaging and subsurface model building with the complete seismic wavefield.




Sunday, 30 July

SC2 - Geostatistical reservoir modeling and uncertainty quantification

Integrated reservoir modeling provides a set of techniques to create three-dimensional numerical earth models of elastic, petrophysical and dynamic properties of the reservoir rocks during exploration and production. The course focuses on the quantification of uncertainty in the data, in the physical models and in the reservoir predictions in quantitative modeling workflows. Topics include uncertainty quantification in spatial and time domain, in the context of inverse modeling, geostatistical simulations and data assimilation. Uncertainty propagation from the measure data, through the physical models, to the model predictions is studied with focus on seismic inversion, rock physics modeling, reservoir characterization, geostatistical modeling, time-lapse seismic monitoring and history matching. The link between uncertainty quantification and decision making is introduced through decision making theory, with examples related to seismic data acquisition, risk analysis, and well planning.


Lecturer: Dario Grana (University of Wyoming) Dario Grana

Dario Grana is currently assistant professor in the Department of Geology and Geophysics at the University of Wyoming. He received a MS in Mathematics at University of Pavia (Italy) in 2005, a MS in Applied Mathematics at University of Milano Bicocca (Italy) in 2006, and a Ph.D. in Geophysics at Stanford University in 2013. He worked four years at Eni Exploration and Production in Milan and he joined the University of Wyoming in 2013. He is coauthor of the book ‘Seismic Reflections of Rock Properties’, published by Cambridge University Press in 2014. He is also the recipient of the 2014 Eni Award for New Frontiers of Hydrocarbons, together with Tapan Mukerji, Gary Mavko and Jack Dvorkin. In 2016, he received the SEG Karcher Award ‘in recognition of significant contributions to the science and technology of exploration geophysics by a young geophysicist of outstanding abilities’. His main research interests are rock physics, seismic reservoir characterization, geostatistics, data-assimilation and inverse problems for subsurface modeling.




Sunday, 30 July

SC3 - The practice of seismic depth imaging

The course covers all aspects related to practical implementation of depth imaging technology. It will highlight the advantages as well as the pitfalls of model building and depth imaging. The course is suitable for Geophysicists and Geologists that are working with depth migrated data, or that wish to gain understanding in the processes that are used by the industry for generating depth migrated data as well as various anisotropic models. The course is constructed by individual chapters where each chapter is focusing on a specific subject, and each chapter is using the material reviewed in the previous chapter as a reference. One hour is allocated for each course chapter. The total course length will be about 8 hours.

General Review: Time and Depth Imaging Methods
The course starts with a general description of basic concepts and methods in both time and depth imaging. In this chapter we will set the foundation for the topics that will be discussed throughout the course.

Forward Modeling: Ray Trace and Wave Equation Techniques
In this chapter we cover the theory of both wave propagation as well as ray propagation. We will also introduce the basic concepts used in the numerical solutions of the wave equations. We will review the wave equations most commonly used in the industry, and analyze wave propagation snapshots and ray fans in various geological settings. Both Acoustic and Elastic media will be reviewed.

The Theory of Post Stack and Prestack Depth Migration
Using both wave and ray equations that were examined in the previous chapter we discuss how these equations are used for application of depth migration. We start with ray based depth migration and cover the basic concepts of Kirchhoff summation migration. Next we tackle the building stones of wave equation depth migrations: Downward Continuation and Imaging Condition. We then review the formulation of wave equation depth migration. We conclude with explanation and demonstration of how Reverse Time Migration (RTM PSDM) works.

Migration Parameterization
In this chapter we switch to a discussion of practical implementation of prestack depth migration. This includes the main parameters used in application of depth migration. We conclude with a review of how image gathers are constructed by various depth migration algorithms and how they are used.

Seismic Velocities and Anisotropy and Velocity Estimation Techniques
After covering all aspects of forward modeling and depth migration we switch to discuss velocity estimation and velocity model building. We start this chapter with a review of the various definitions of velocity fields used in seismic processing and depth imaging. We then review and explain all velocity analysis techniques used in the industry for estimation of interval velocities as well as anisotropic fields. This includes ray base reflection tomography and wave based full waveform inversion (FWI).

Salt Body Interpretation and Model Building
In this chapter we move from discussing velocity and anisotropic field estimation to reviewing construction of the structural part of the anisotropic models, or in other words from ‘processing’ to ‘interpretation’. The focus of this chapter is in salt model building. We conclude this chapter by reviewing the functionality needed in the interpretation model building tools that we are using for the construction of complex geological models (see figure 1).

Imaging and Interpretation of Sub-Salt Sediments
After reviewing interpretation for model building of salt bodies we will evaluate challenges of imaging and interpretation beneath salt. The objective is to increase our understanding of sub-salt coherent noise that is part of the depth migrated data, and learn how to differentiate the noise from signal when interpreting the subsalt section. We will include in this chapter a discussion about the ability to preserve amplitude information in prestack depth migration where illumination is not uniform. This will address the ability to successfully use PSDM gathers for impedance inversion (see figure 2).

Illumination Analysis and Acquisition Design Studies
Since the introduction of wide azimuth marine seismic acquisition and ocean bottom nodes, acquisition design has become part of the assignment of Geophysicists. Wave equation simulation tools are now routinely used to assist in both marine and land seismic acquisition setup, and help to better understand the processing that needs to be applied to these various datasets. In this chapter we will review ray based and wave based simulation tools that are used for seismic acquisition design. This will enable us to link the seismic acquisition program in order to achieve the imaging objectives (see figure 3).

Course Summary
We will end the course recapping the course chapters and have a final discussion of today’s status of depth imaging technology and where we see the industry’s focus in the coming years.

Velocity model produced by an iterative PSDM approach

Figure 1: Velocity model produced by an iterative PSDM approach.



Velocity model produced by an iterative PSDM approach

Figure 2: Amplitude balanced RTM PSDM.



Velocity model produced by an iterative PSDM approach

Figure 3: Illumination Volume.


Lecturer: David Kessler (SeismicCity) David Kessler

David Kessler is the President of SeismicCity Inc., a company dedicated to the development and implementation of depth imaging technology. David holds a B. Sc., M. Sc. and Ph. D. degrees in Geophysics. At the start of his career David worked as a research Geophysicist. From 1991 to 1994 he was a Senior research Geophysicist for Landmark/ITA, and from 1994 to 1996, he was a Senior research Geophysicist for Cogniseis Development. In 1996 David changed his focus from research to application, by becoming the Manager of Depth Imaging Services for CGG Americas. In this roll he worked to establish a depth imaging group that would provide model building and depth imaging seismic processing services for CGG in North and South America. In early 2000, together with several other colleagues, David created an independent seismic processing company called SeismicCity, with the objective to develop proprietary model building and depth imaging technology and to provide this technology in execution of commercial depth imaging projects. SeismicCity is located in Houston Texas.. Using its proprietary technology, the company provides pre-processing, anisotropic model building, prestack depth migration and data analysis services to its clients exploring for oil and gas in various geological environments around the globe.




Monday, 31 July

SC4 - Rock Physics for Quantitative Seismic Reservoir Characterization

Course Description
This course covers fundamentals of Rock Physics and Statistical Rock Physics, ranging from basic laboratory and theoretical results to practical “recipes” that can be immediately applied in the field for seismic reservoir characterization. We will present qualitative and quantitative tools for understanding and predicting the effects of lithology, pore fluid types and saturation, stress, pore pressure and temperature, and fractures on seismic velocity. We will present case studies and strategies for quantitative seismic interpretation and, suggestions for more effectively employing seismic-to-rock properties transforms in reservoir characterization and monitoring, with emphasis on seismic interpretation for lithology and subsurface fluid detection.
The course is recommended for all geophysicists, reservoir geologists, seismic interpreters, and engineers concerned with reservoir characterization, reservoir delineation, hydrocarbon detection, reservoir development and recovery monitoring.

Course Outline

  • Introduction to Rock Physics, motivation, introductory examples
  • Parameters that influence seismic velocities - Conceptual Overview effects of fluids, stress, pore pressure, temperature, porosity, fractures
  • Bounding methods for robust modeling of seismic velocities Effective media models for elastic properties of rocks
  • Gassmann Fluid substitution – uses, abuses, and pitfalls derivation, recipe and examples, useful approximations Partial saturation and scales
  • Rock Physics of AVO interpretation Example case studies using AVO for quantitative reservoir characterization
  • Quantitative seismic interpretation and rock physics templates (RPT).
  • Statistical rock physics and uncertainty assessment Example case studies using seismic impedance for quantitative reservoir characterization
  • Rock physics for interpreting time-lapse seismic monitoring signatures
Lecturer: Tapan Mukerji(Stanford University) Tapan Mukerji

Tapan Mukerji is an Associate Professor (Research) jointly in the Department of Geophysics and the Department of Energy Resources Engineering at Stanford University, where he got his Ph.D. (1995) in Geophysics. Tapan co-directs the Stanford Center for Reservoir Forecasting (SCRF) and is closely associated with the Stanford Rock Physics and Borehole Geophysics (SRB) and the Stanford Basin and Petroleum System Modeling (BPSM) research programs. His research interests include rock physics, geostatistics, wave propagation, and stochastic methods for quantitative reservoir characterization, geomodeling, and time-lapse reservoir monitoring. Tapan combines experience in conducting leading edge research, teaching, and directing graduate student research. He was awarded the Karcher Award in 2000 by the Society of Exploration Geophysicists, and the Eni Award for Hydrocarbons Upstream in 2014. He is associate editor for Geophysics, journal of the Society of Exploration Geophysicists, and Computers and Geosciences. In addition to numerous journal publications, Tapan has co-authored The Rock Physics Handbook, Quantitative Seismic Interpretation, and Value of Information in Earth Sciences, all published by Cambridge University Press. He has been an invited keynote speaker and lecturer for numerous short courses on rock physics and geostatistics, in North and South America, Europe, Africa and Asia.




Sunday, 30 July

SC5 - Applications to Seismic Interpretation*

This short course addresses the basic concepts and techniques currently used by oil companies in exploratory seismic interpretation. The main topics are: seismic to well data correlation, seismic data representation, concepts of petrogeophysics, seismic indicators of hydrocarbon and lithology, basics and practical aspects of Amplitude versus Offset (AVO) analysis and seismic inversion, seismic resolution, time to depth conversion and other quantitative estimations from seismic data.
*O curso será ministrado em português/It will be presented in Portuguese language

Lecturer: Dr. Carlos Lopo Varela (Petrobras) C Varela

- Formado em Geologia pela Universidade Federal da Bahia em 1979;
- Geofísico da Petrobras desde 1980, onde trabalha com interpretação de dados sísmicos;
- Mestrado em Geofísica pelo Programa de Pesquisa e Pós-Graduação em Geofísica da Universidade Federal da Bahia (PPPG-UFBa) em 1985;
- Doutorado em Geofísica pelo Institute for Geophysics of The University of Texas at Austin (UTIG – UT at Austin) em 1996.




Monday, 31 July

SC6 - Tectonics and Sedimentation in Petroliferous Basins

Plate Tectonics and intraplate deformation, caused by the release of stresses originated at the margins of the plates, generate a discrete number of types of crustal depressions that are constantly filled by sedimentation of the most diverse nature. Sedimentary basins constantly evolve through a combination of deformation and sedimentation. Tectonics is responsible for the primeval causes of the formation of the basin, and for the deepening and widening of the subsiding basement. It is also responsible for the deformation of the infilling material and for their thickening and thinning throughout the crustal cavities formed. Sedimentation that takes place concomitantly with the movements of faults and the flexing of folds is called syn-tectonic and their geometry is a direct response to the spaces provided by the active tectonism and its action upon them. As a result of syn-tectonic sedimentation growth strata are generated and their recognition and the understanding of their genesis is of utmost importance in the study of petroliferous basins. Growth strata are very useful to precisely date the tectonic events in different times and places in the interior of the basin. Source rocks and reservoirs are commonly associated to growth strata. This one-day short-course will emphasize the description of the tectonic styles that are responsible for creating and shaping sedimentary basins, as well as the recognition of growth strata in seismic sections and the understanding of their importance in the better risk evaluation of important itens of the petroleum systems (source rocks, reservoirs, traps and timing).

Lecturer: Pedro Zalán (Zag Consultoria) Zalán

Pedro Victor Zalán worked for Petrobras for 34 years and 3 months. In the last 8 years in the company he was one of the top Senior Consultants of the company. He began his work in the industry with Petrobras in Belém in 1978. Zalán worked as wellsite geologist, interpretation geologist, explorationist, coordinator of technical teams and exploration manager for several basins in Brazil and worldwide, notably for the North Sea, Gulf of Mexico, West Africa and South America. As an internal consultant for both domestic and international exploration, he got involved with the most diverse basins in time (from Cenozoic to Proterozoic), space (from onshore to ultra-deep water) and distribution (from Cuba to East Siberia, from the North Sea to Antarctica). His technical interests are mainly structural geology, tectonics, architecture of rifts and ruptured continental margins, exploration in deep and ultra-deep waters, seismic interpretation and mapping, and integration of regional data in order to evaluate the economic potential of major petroleum systems. Zalán has produced several tens of publications and has given presentations in numerous international conferences. He had also been a short-course instructor for 25 years in structural geology, basin analysis and risk evaluation, for Petrobras, in congresses and for NOC’s worldwide. Zalán received a Bachelor degree in Geology from the Federal University of Rio de Janeiro, and M.Sc. and Ph.D. in Geology from the Colorado School of Mines, Golden. He was awarded the Orville Derby Medal in 2005 by the Sociedade Brasileira de Geologia, the Gabriel Dengo Memorial Award from the AAPG and the Giuseppe Bacoccoli Medal by the ABGP.


Upon retirement, Zalán founded ZAG Consulting in Petroleum Exploration, based in Rio de Janeiro. Since 2012 he has been a consultant for exploration matters for more than 20 companies in Brazil and abroad. From seismic mapping of leads and prospects, through evaluation of farm-in opportunities, regional mapping of basins and petroleum plays, development of producing fields, risk evaluation of leads and prospects, participation in R&D projects, to the teaching of training courses in different fields to the technical and managerial staff of petroleum companies, Zalán has characterized himself as one of the most active consultants in the industry. Among his clients, giants like Statoil, Shell and Petrobras stand out. International players like JX Nippon, Sinochem and Ecopetrol, as well as smaller domestic companies such as Queiroz Galvão and Parnaíba Gás Natural are also listed. Financial entities as Deutsche Bank and Ice Canyon, and Brazilian government organs such as ANP, EPE and the Navy had also used Zalán’s consulting services.




Sunday, 30 July

SC7 - Applied Oilfield Geomechanics

Course Description:
Knowledge of the stress-state, pore pressure and mechanical properties in a reservoir and the surrounding rock assists to make informed reservoir management and field development choices. Examples include the prediction of  wellbore stability, and choice of mudweights and casing depths. Furthermore this knowledge allows assessing the risk of reservoir compaction, wellbore failure during production, breach of seal integrity, and fault re-activation amongst other issues, and enables the design of mitigation measures for these issues. A geomechanical model is a repository for stress-state, pore pressure and mechanical properties. The purpose of this course is (i) to understand data requirements for building and calibrating such models, (ii) to investigate the worksteps in building and executing such models and (iii) to analyse geomechanical models to make contributions for field development decisions. The course has a strong focus on 3D and 4D geomechanical models, and the importance of high quality seismic data and inversion models in building geomechanical models and time-lapse (4D) seismic data as means of calibrating the dynamic behavior of (4D) reservoir geomechanical models.


Course Objectives:

  • Provide an overview over currently available techniques of  building and calibrating 3D and 4D geomechanical models;
  • Demonstrate the interaction between rock properties, pore pressure and stress state;
  • Apply the knowledge of stress state from geomechanical models to field development and reservoir management;
  • Understand the limitations of current workflows and techniques and give a glimpse of the road ahead.

Course Outline:

  • Introduction: Applications of geomechanics in the oil-field life-cycle;
  • Rock mechanical properties:
  • Elastic and strength properties;
  • How do you derive mechanical properties in practice.
  • Stress and strain tensors:
  • Workflow for building 3D and 4D geomechanical models;
  • Calibration of 3D geomechanical models using well-centric 1D geomechanical models;
  • Analysis and display of displacement vectors, strain tensors and stress tensors.
  • Case studies:

    • Building a 3D geomechanical model using seismic AVO inversion  in an onshore tight gas reservoir;
    • Geomechanical controls on hydraulic stimulation;
    • Wellbore stability for inclined wells: Why inclined and horizontal wells behave differently from vertical wells;
    • Multiple uses of 3D and 4D geomechanical flow models: Applications in a deepwater carbonate and clastic fields;
    • Stress rotations during production and their impact on hydraulic stimulation.
Lecturer: Dr. Jorg Herwanger (MP Geomechanics) Jorg Herwanger

Dr. Jorg Herwanger is a Director at MP Geomechanics, a company focussed on software development and consulting using fully coupled geomechanics and flow simulation technology. Previously, Jorg was Vice President Special Projects at Ikon Science and a Principal Geoscientist with Schlumberger. During his 20 year career in the oil and gas industry, he has worked in Research and Engineering, Consulting and Software support. He developed the concept of Seismic Geomechanics, the concept of building and calibrating geomechanical models using 3D and 4D seismic data. During 2011-2012, Jorg was the EAGE Education Tour Lecturer undertaking a global lecture tour for which he wrote a textbook on Seismic Geomechanics.




Monday, 31 July

SC8 - Time-Lapse (4D) Reservoir Monitoring

Resumo:

A sísmica 4D (S4D ou “time-lapse”) tem se tornado parte integrante das atividades de caracterização e monitoramento de reservatórios em diversas companhias de petróleo. Diversos trabalhos publicados demonstram que a sísmica 4D pode fornecer informações úteis para melhorar a estratégia de desenvolvimento e maximizar o fator de recuperação.
Este curso pretende fornecer uma visão geral da sísmica 4D de modo a criar as bases para executar estes projetos. Serão abordadas as bases de física de rocha e de fluidos, aspectos de aquisição e processamento (repetibilidade), estudos de viabilidade e aspectos de interpretação, relacionados à S4D.


Público Alvo:

Este curso está formatado para atender a profissionais de diversas áreas. Além de geofísicos, pode ser útil para geólogos, engenheiros de reservatório e petrofísicos que queiram criar a base para lidar com projetos de S4D e aprimorar o gerenciamento de reservatórios. Não há pré-requisitos para realizar este curso.


Short course description

Time-lapse (4D) seismic has become an integral part of reservoir management in several oil companies. Successful published case studies have demonstrated that 4D seismic can provide useful information in order to improve reservoir development strategy and maximize recovery factor.

This course is intended to provide an overview of time-lapse seismic method to create the base for dealing with 4D projects. It will examine rock and fluid physics basis, acquisition and processing aspects (repeatability), feasibility studies and interpretation related to 4D.

It will be presented in Portuguese language, however the instructor is available to clarify any aspect in English.


Learning objectives

  • Introduction – the value of 4D
  • Seismic basic concepts
  • Petrophysical basis for 4D
  • Pressure effects on seismic data
  • Saturation effects on seismic data (Gassmann theory)
  • Acquisition and processing for 4D studies
  • Repeatability indicators (NRMS and predictability)
  • Feasibility studies to determine whether 4D will work
  • Time-Lapse seismic interpretation and case studies
  • S4D-Simulator and S4D-Geomechanics

Who should attend


This course is intended to appeal to a wide audience. It should be suitable not only to geophysicists, but also to geologists, reservoir engineers, petrophysicists and others wanting to know what time-lapse seismic is and how it can help reservoir management. There are no prerequisite degrees or courses required to gain insight from this course.

Lecturer: Marcos Hexsel Grochau (Petrobras)
Marcos photo5

Marcos Grochau é geofísico consultor sênior da Petrobras e trabalha com diversos projetos de Sísmica Time-Lapse (4D) no grupo de caracterização de reservatórios. Obteve seu diploma universitário em geologia na UFRGS (Porto Alegre), mestrado em geoengenharia do petróleo na Unicamp e Academia Tcheca de Ciências (Praga) e doutorado em geofísica na Curtin University (Austrália). Sua experiência inclui aquisição e processamento sísmico, interpretação volumétrica, caracterização de reservatórios e análise quantitativa de sísmica time-lapse.


Tem livro publicado sobre Sismica Time-Lapse pela editora Lambert (Amazon.com), trabalhos nas revistas Geophysics, The Leading Edge e Geophysical Prospecting e apresentações nos congressos internacionais da SEG (Award of Merit) e EAGE.

Marcos received bachelor’s degree from UFRGS University (Porto Alegre, Brazil), obtained his masters degree from UNICAMP and the Science Academy of Czech Republic (Prague), and PhD from Curtin University (Australia).

His background includes seismic acquisition, processing, interpretation and reservoir characterization. He has been working for the last 15 years in reservoir characterization, volumetric seismic interpretation and visualization, and quantitative time-lapse (4D) interpretation in several hydrocarbon fields.




Monday, 31 July

SC9 - Waveform inversion and wave-equation migration velocity analysis

Description: The course presents the theoretical and conceptual foundations for waveform inversion of reflection seismic data, and it explores in details their applications to recover model parameters from the recorded data. I will discuss the relationships between migration, linearized waveform inversion and full waveform inversion. I will then introduce the concept of inversion in the data domain and image domain, and discuss how to combine the two to derive methods that provide both high resolution and strong convergence properties. Finally it will discuss application of waveform inversion to time-lapse imaging, and ways for going beyond least-squares inversion by using different data-residual norms that are more suitable for recovering geologic information.

Lecturer: Dr. Biondo Biondi (Stanford University) Biondo Biondi

Biondo Biondi is Professor of Geophysics at Stanford University. He graduated from Politecnico di Milano in 1984 and received an M.S. (1988) and a Ph.D. (1990) in Geophysics from Stanford. He is director of the Stanford Exploration Project (SEP). SEP is an academic consortium whose mission is to develop innovative seismic imaging methodologies and to educate the next generation of leaders in applied seismology. SEP's activities are supported by about 23 companies involved in Oil & Gas exploration and production. He is also co-director of the Stanford Center for Computational Earth and Environmental Science (CEES). CEES leads the Stanford School of Earth Sciences’ computational-oriented research and educational programs.


He has made contributions on several aspects of seismic imaging, ranging from velocity estimation to parallel algorithms for seismic migration. Since the early nineties he has been at the forefront of the development of wave-equation imaging and inversion methods. In 2004 the Society of Exploration Geophysicists (SEG) honored Biondo with the Reginald Fessenden Award. In 2006 Biondo published the book “3D Seismic Imaging” that was the first book to introduce the theory of seismic imaging from the 3-D perspective. In 2007 Biondo was the SEG/EAGE Distinguished Short Course Instructor, for which he gave a one-day course in more than 30 cities around the world.




Monday, 31 July

SC10 - The Analysis of Petrophysical Data for Mineral Exploration Targeting

There is still much that needs to be understood about the physical properties of rocks associated with mineralised geological environments. This knowledge gap becomes more important as the transition to deeper exploration targets under cover occurs, with an associated greater reliance on geophysical exploration methods. Recognising and testing targets and accurately mapping the geology are equally dependent on petrophysics, which constitutes a link between the geologist’s largely chemical view of the Earth and the geophysicist’s physical view.


The increased use of mineralogical scanners and portable XRF instruments means quantitative measures of the geological properties of a sample are now readily available for comparison with the petrophysical measurements. Also instruments to scan core measuring both geological and petrophysical together are now available. A consequence of this is that far data volumes are now practically achievable and there are multiple measurements on the same samples. This combination of circumstances warrants a reassessment of how petrophysical data can be integrated in to the exploration targeting process.


Drawing on current research in the Centre for Exploration Targeting, this course will cover the analysis of the main types of petrophysical data used in mineral exploration. Participants will complete a serious of practical exercises in the analysis of petrophysical data based on real-world exploration scenarios from a variety of geological settings.

All attendees must bring a computer running Ms Excel.

Lecturer: Dr. Michael Dentith (The University of Western Australia) Mike Dentith

Prof Michael Dentith is Professor of Geophysics at The University of Western Australia and a research theme leader in the Centre for Exploration Target (CET). He has 25 years' experience researching, teaching and consulting in mineral exploration geophysics. He is editor of two case study 'geophysical signatures' publications on Australian mineral deposits and co-author of the textbook ‘Geophysics for the Mineral exploration Geoscientist' published by Cambridge University Press. He is currently working on a new book on the geophysical responses of mineral deposits.




Sunday, 30 July

SC11 - The CSEM method*

1 - Electromagnetic introduction

2 - Resistivity of rocks

3 - CSEM principles

4 - Interpretation flux

5 - Case histories

6 - New advances and aplications

*To be presented in Portuguese language

Lecturer: João Lucas Crepaldi (Petrobras) J L Crepaldi

Bachelor in Physics at Universidade Federal de São Carlos (2005). Masters started at USP São Carlos (2006) with emphasis on Quantum Information. Completed his Masters on Geophysics Department of Observatório Nacional (2010) in Inversion of Electromagnetic Data. Attended Petroleum Geophysics Short Course at University of Houston (2012). Presently is Geophysicist Senior expert in Electromagnetic Methods in Petrobras (since 2006), which has worked in research and development of methodologies and software for EM data, also acting in all steps of exploration from acquisition to interpretation. Also has wide experience in developing and teaching courses on the company and universities, has presented works in many congress, symposium and has some publications in important journals.




Sunday, 30 July

SC12 - Seismic Reservoir Characterization Principles and Workflows

Course Abstract

The objective of this course is to acquire theoretical and practical knowledge of the key concepts and methods used in seismic reservoir characterization. The course covers both deterministic and stochastic approaches to characterize the reservoir, focusing on the uncertainty and ways to deal with it. Particular attention is drawn to presenting reservoir characterization as a data integration process. The main concepts discussed in the course are illustrated through several case studies including Brazilian data.

Course Duration: 1 day

Course Language: Portuguese or English depending on the audience

Course Outline:

  • Seismic reservoir characterization principles and fundamentals
  • Well to seismic calibration and wavelet estimation
  • AVO analysis
  • Seismic data attributes
  • Seismic data preconditioning importance and principles
  • Deterministic Seismic Inversion
  • Facies classification and rock properties estimation
  • Broadband seismic data in reservoir characterization
  • The petro-elastic model and petrophysical inversion
  • 4D reservoir characterization
  • Geostatistical seismic inversion
  • Azimuthal techniques and their applications

Lecturer: Ekaterina Kneller, CGG Ekaterina Kneller

Ekaterina Kneller received a B.Sc. (2003), M.Sc. (2004) in Geophysics from the Moscow State University in Russia. Since then she has been working with seismic reservoir characterization and integrated projects. Her portfolio includes 12 years in seismic reservoir characterization services both on-site and off-site for oil and gas companies globally, with a focus on seismic inversions, quantitative data analysis, geostatistics.
Ekaterina is part of CGG GeoConsulting team in Brazil since 2011.




Monday, 31 July

SC13 - Seismic Interferometry: Theory and Practice

Duration: 6-7 hours

Description:
The theory of seismic interferometry is introduced in an intuitive way using simple ray diagrams. These ray-based illustrations show how seismic interferometry can widen the subsurface illumination in imaging VSP data, surface seismic profiles (SSP), surface waves, and refraction arrivals. The applications are for earthquake, exploration, and engineering seismic data. There will also be several hands-on labs that apply seismic interferometry to refraction data and surface-wave events. Attendees should bring their laptops with MATLAB installed; they will download the MATLAB scripts and data sets. By the end of the course the diligent attendee will know the basic theory of seismic interferometry, its assumptions and limitations, and have a working knowledge on how to apply it to seismic data with refraction events and surface-wave arrivals.


Lecturer: Gerard Schuster, KAUST Gerard Schuster

Gerard Schuster has an MS (1982) and a PhD (1984) from Columbia University and was a postdoctoral researcher there from 1984-1985. From 1985 to 2009 he was a professor of Geophysics at University of Utah. He left Utah to start his current position as Professor of Geophysics at KAUST in 2009. He received a number of teaching and research awards while at University of Utah. He was editor of Geophysics from 2004-2005, was awarded SEG's Virgil Kauffman gold medal in 2010 for his work in seismic interferometry, and was the 2013 SEG DL speaker.




Monday, 31 July

SC14 - From Solar Eruption to Power Grids and Pipelines

Abstract
The course will provide the information and raise the awareness on the sources and impacts of space weather on technology infrastructure. The following are the topics to be explained: the chain of multiple phenomena starting from different types of solar disturbances; their propagation through the interplanetary media, their interaction with Magnetosphere, Ionosphere and Earth’s magnetic field. It will discuss the impacts of space weather on multiple technological infrastructures such as: 1) satellites (briefly); 2) radio communication and GNSS (briefly); 3) power grids and pipelines (in depth). The questions of data gaps, knowledge gaps, observational needs and forecasting possibilities will also be outlined. If time permits (and if the room is equipped with laptops and internet connection) short exercise can be also offered to the attendees.


Outline (preliminary)
Part 1

1. Introduction: Historical evidences of the Sun-Earth connections and impacts.
2. Solar and galactic sources of the variability in the near-Earth space environment.
3. Propagation of solar disturbances through the interplanetary media: observations and modelling.
4. Natural electromagnetic environment of Earth: Geomagnetic field, Magnetosphere, Ionosphere.
5. Impacts of the solar disturbances on the natural Earth environment: response of the geomagnetic field and ionosphere.
Part 2
6. Radiation belts and impacts on satellites at different Earth’s orbits.
7. Impacts of solar transients on the ionosphere and radio communication at different latitudes.
8. Geomagnetic variations at different latitudes and geomagnetic storms.
9. Effects of geomagnetic variations on the power lines and pipelines, examples.
10. Influence of geophysical parameters and network topology on the technology response.
11. Mitigation: Situational awareness, Solar-terrestrial predictions, other matters.
12. Gap analysis.

Hands-on exercise: use the on-line service for pipeline operations provided by NRCan space weather group and built “your own pipeline”. Run quiet vs storm time periods and identify the differences.


Lecturer: Larisa Trichtchenko, Canadian Space Weather Forecast Centre

Larisa Trichtchenko is a senior research scientist at the Geomagnetic Laboratory/Canadian Space Weather Forecast Centre, Natural Resources Canada. She has a M.Sc. degree in Engineering Physics received from St. Petersburg Technique University, and Ph.D. in Physics and Mathematics received from Moscow State University. During the work in Russia, she was the Associate Professor at the Department of General Physics for over ten years and her major scientific interests were space plasma and particles in the inner magnetosphere.
In 1998 Dr. Trichtchenko joined the Geomagnetic Laboratory and since then works on multiple scientific topics related to space weather, from the effects of geomagnetic storms on power systems and pipelines to satellite environment and to space weather forecasts. She is the leader of “Space Weather Hazard Assessment” project of Public Safety Geosciences Program of Natural Resources Canada, leader and collaborator on multiple research projects dealing with impacts of space weather on pipelines, power grids, investigated the ionized radiation on satellite orbits.
Dr. Trichtchenko is a member of several international teams and working groups dealing with different aspects of space weather.




Sunday, 30 July

SC15 - Simultaneous Sources: introduction to acquisition and processing and recent advances

The concept of shooting seismic sources in an overlapping and interfering way to increase productivity and quality while reducing costs has been around for some time. Since it was reintroduced in the late 1990’s this type of data acquisition and processing has received much attention and has progressed to the point that it is now an accepted method under many circumstances. This course will provide an introduction, based on the history of the subject, to the necessary concepts to understand the benefits as well as challenges that still remain for simultaneous source data. The course will strive to achieve a balance between the practical and theoretical issues and will finish with a look at recent innovations that indicate the near future of this exciting new paradigm in seismic data acquisition.


Lecturer: Dr. Craig J. Beasley, Schlumberger Craig Beasley

Craig completed B.S., M.S. and Ph.D. degrees in mathematics and then joined Western Geophysical 1981. He has spent his entire career in Schlumberger companies and their antecedents serving in various technical and management positions including VP for R&D and VP, Data Processing. He has received technical and honorary awards from entities such as Litton Industries, Schlumberger and the Society of Exploration Geophysicists, among them the SEG Award for Best Presentation. He has twice received honorable mention for the Best Paper in Geophysics. He is an Honorary Member of the Society of Exploration Geophysics (SEG) and of the Geophysical Society of Houston and is a Foreign Member of the Russian Academy of Natural Sciences. He has presented papers and published widely on a variety of topics ranging from prestack imaging, migration, acquisition and the connections between acquisition, processing and imaging. He pioneered Simultaneous Source technology and has recently worked in broadband seismic techniques. He served as the 2001-2002 SEG 1st Vice President and as the 2004-2005 President of the SEG. He served as the Fall 2009 SEG Distinguished Lecturer as well as the Esso Australia Distinguished Lecturer and as 2014 EAGE Distinguished Lecturer. He was the Founding Chair of the SEG Foundation Committee for Geoscientists without Borders. He has enjoyed postings in Singapore and Rio de Janeiro and now is in Houston recently retired as Chief Geophysicist for WesternGeco and Schlumberger Fellow (Emeritus).




Monday, 31 July

SC16 - Advanced GPU Computing for Geophysics

During this course, you will learn about OpenACC, NVIDIA libraries for accelerated computing, and Deep Learning. OpenACC is a user-driven standard that offers a directive-based programming model for the scientific community to port their codes to multiple platforms without significant programming effort. The course will cover introduction on how to analyze and parallelize your code, as well as perform optimizations like managing data movements. With access to a variety of supercomputers, researchers are looking for a solution that allows their codes to run not only on GPUs but on any architecture with minimal or no code change. Scientists report 2-10x performance increase with as little as a few weeks effort using OpenACC. The NVIDIA SDK has a lot of useful libraries for FFT, BLAS, etc, developed in CUDA to be GPU-Accelerated. Deep Learning is a Machine Learning technique with outstanding results in areas like computer vision, time-series analysis, etc with a huge potential in Geoscience.
Prerequisites: While the lab does not assume any previous experience with OpenACC directives or GPU programming in general, programming experience with C or FORTRAN is desirable. This lab utilizes GPU resources in the cloud, you are required to bring your own laptop.


Lecturer: Pedro Mário Cruz e Silva - Solutions Architect, NVIDIA Pedro Mário Cruz e Silva



Sunday, 30 July

SC17 - Introduction to GPU Architecture and Programming

GPUs are powerful and efficient super parallel architectures. Nowadays GPUs can have more than 5000 cores in a single card board, being able to accelerate intense computational applications up to 2 or 3 orders of magnitude, when compared with parallel CPUs. This short course will introduce the attendees to the concepts of the modern GPU architecture, how they work and basic CUDA concepts. The course will also present new features, tools and possibilities that can be solved with NVIDIA solutions and will present the most recent GPUs availables at the market.


Lecturer: Prof. Marcelo Zamith