The compute intensive imaging paradigms such as reverse time migration, iterative and interactive model building, and waveform inversion make High Performance Computing (HPC) more vital than ever to the Oil and Gas Industry mission. In addition to imaging, HPC is critical for everything from timely modeling and simulation of large-scale physical systems once thought to be impossible, to processing, analysis and interpretation and visualization of huge seismic data volumes. This workshop focuses on recent advances in HPC as well as challenges due to the end of Moore’s Law and its impact on the Oil and Gas Industry. In this workshop, the following subjects will be addressed:

• Seismic Imaging Experiences on GPUs
• A Massively parallel implementation of the reverse time Migration
• Evaluation of 3D RTM on hardware accelerators
• RPU-Accelerated Reverse Time Migration
• Green Flash: Ultra-efficient Computing
• HPC Resources, Hardware and Software: National Lab and Government Agencies
• Panel Discussion, HPC-Recent Advances and Future Challenges
  

1:30-1:35 p.m.
Opening Remarks; Masoud Nikravesh

1:35-2:15 p.m.
Speaker: Scott Morton (Hess)
Title: Seismic Imaging Experiences on GPUs
Authors: Scott Morton

2:15-2:45 p.m.
Speaker: Henri Calandra (TOTAL)
Title: A Massively parallel implementation of the The reverse time Migration
Authors: Henri Calandra, Bertrand Denel Bernard Cazalis (TOTAL) Alexandre Louvet (SGI)

2:45-3:15 p.m.
Speaker: José Mª Cela (Barcelona Supercomputing Center)
Title: Evaluation of 3D RTM on hardware accelerators
Authors: Mohammad Shafiq, Mauricio Araya-Polo, Miquel Pericas, Javier Cabezas, Mauricio Hanzich, Jose M. Cela, Eduard Ayguade (BSC), Francisco Ortigosa (Repsol)

3:15-3:30 p.m.
Break

3:30-4:00 p.m.
Speaker
Ryan Schneider - CTO & Co-Founder, Acceleware Corp
Title: Accelerating Energy Exploration and Production with Seismic Processing
Authors: Ryan Schneider

4:00-4:30 p.m.
Speaker
John Shalf (LBNL)
Title: Green Flash: Ultra-efficient Computing Research at LBL
Authors: John Shalf, Leonid Oliker, Michael Wehner, David Donofrio (LBNL)

4:30-5:00 p.m.
Speaker: Andreas von Bechtolsheim, Chief Architect & Co-Founder, Sun Microsystems, Founder & Chief Development Officer, Arista Networks, USA
Title: The Evolution of Interconnects for High-Performance Computing

5:00-5:10 p.m.
Speaker: Masoud Nikravesh, (LBNL, UCB)
Title: HPC Resources, Hardware and Software: National Lab and Government Agencies

5:10-5:30 p.m.
Panel Discussion
Title: Panel Discussion, HPC-Recent Advances and Future Challenges
Moderators: Dimitri Bevc(2) and Cynthia Xue

5:30 p.m.
Concluding Remarks

At the time of the 2005 SEG Workshop on Interferometry, the subject caught the fancy of many but there were numerous unanswered questions. Since then, the theoretical and numerical developments have greatly evolved, but practical field data applications within exploration geophysics have been relatively few compared with the potential suggested by the 2005 workshop. This year's workshop will explore the latest theory and applications both within and outside of the field of exploration geophysics. Our focus will be placed not only on the multidisciplinary nature of Interferometry, but also in realistically reassessing the potential of the method in light of the latest developments and existing field trials.

1:30 p.m.
Introductions

1:40 p.m.
Keynote: Overview of Seismic Interferometry and Applications in Applied Seismology
Gerard Schuster

2:10 p.m.
Keynote: Green's Second Theorem and the Extraction of Green's Functions
Evert Slob*, Roel Snieder and Kees Wapenaar

2:40 p.m.
Break

2:55 p.m.
Poster Session I (listed alphabetically by first author)
Combining Active and Passive Seismic Monitoring
A.J. (Guus) Berkhout and D.J. (Eric) Verschuur
Offshore Ambient-Noise Surface-Wave Tomography (ANSWT) in Oil Industry
Sascha Bussat and Simone Kugler
A Study Of Ambient Seismic Noise As The Source For Body-Wave Interferometry
Xander Campman, Deyan Draganov, Arie Verdel and Kees Wapenaar
The Interferometric Fresnel Zone
Sathya Costagliola
Chicken or Egg? Turning Earthquakes into Virtual Seismometers
Andrew Curtis, Heather Nicolson, David Halliday, Jeannot Trampert and Brian Baptie
Source-Receiver Interferometry from Unified Representation Theorems
Andrew Curtis and David Halliday
On The Connection Between The Generalized Optical Theorem, Reciprocity Theorems For Perturbed Media, And Seismic Interferometry
Huub Douma, Ivan Vasconcelos, and Roel Snieder
3D SSP Data Interpolation by Interferometry
Sherif M. Hanafy and Gerard T. Schuster
Ambient Noise Interferometry: Multidisciplinary Applications To Seismic Tomography, Volcanic Deformation, And Atmospheric Infrasound
Matthew M. Haney, Stephanie G. Prejean, and Tim Masterlark
Virtual Source Method Applied To Horizontal Well And Cross-Well Geometries
K. Mehta, P. Jorgensen, D. Kiyashchenko, J. Ferrandis, and J. Lopez,
Interferometric Imaging By Cross Coherence
Norimitsu Nakata*, Toshifumi Matsuoka, Takeshi Tsuji, Kyoto University, and Roel Snieder
Seismic Virtual Reflector (VR), Synthesis And Combination Of Virtual Wavefields: Concept And Review Of Applications
Flavio Poletto and Biancamaria Farina
Data Reconstruction Using Green's Theorem And Interferometry: A Comparison And Analysis
Adriana Citlali Ramírez
Ambient Seismic Noise Interferometry for Exploration and Surveillance
Arie Verdel, Xander Campman, Deyan Draganov, and Kees Wapenaar

3:40 p.m.
Poster Session II (listed alphabetically by first author)
Directional Balancing for Seismic and General Wavefield Interferometry
Andrew Curtis and David Halliday
Reflections On/From Noise: Continuous Versus Event-Driven Ambient-Noise Seismic Interferometry Deyan Draganov, Xander Campman, Jan Thorbecke, Arie Verdel, and Kees Wapenaar
Remote Sensing With Ambient Noise
Peter Gerstoft and Martin Siderius
A New Look At Scattered Noise Attenuation: Interferometric Ground-Roll Removal
David Halliday, Andrew Curtis, Peter Vermeer, Claudio Strobbia and Anna Glushchenko
Electromagnetic Interferometry by Multidimensional Deconvolution: Acquisition Aspects
J. Hunziker, Y. Fan, E. Slob, K. Wapenaar, and R. Snieder
Interferometric Velocity Analysis using Physical and Non-Physical Energy
Simon J. King, Andrew Curtis and Travis Poole
Studying Shallow Seafloor Structure Based on Correlations of Continuous Seismic Records
Matthieu Landes, Nikolai M. Shapiro, Satish Singh (IPGP, Paris) and Rodney Johnston (BP)
Application of noise interferometry to obtain time-lapse velocity variations during a steam stimulation cycle at Cold Lake
Rongrong Lu, Anupama Venkataraman, Mike Payne, and Jie Zhang
Green's Function Retrieval By Iterated Correlations
Sjoerd de Ridder, Biondo Biondi, and George Papanicolaou
Estimation Of Lithospheric-Scale Velocity Models Using Bodywave Seismic Interferometry
Elmer Ruigrok, Deyan Draganov, Kees Wapenaar and Xander Campman
A “Sweet Spot” For Passive Seismic Interferometry May Be Improving Poor Quality Land Data
Christof Stork
Seismic Interferometry By Cross-Correlation And By Multi-Dimensional Deconvolution Using Ambient Seismic Noise
Jan Thorbecke, Elmer Ruigrok, Deyan Draganov, Joost v.d. Neut, Jürg Hunziker, and Kees Wapenaar
The Virtual Refraction: Spurious Energy In Seismic Interferometry Aiding Near-Surface Characterization
Kasper van Wijk, Dylan Mikesell, Alex Calvert, Josh Nichols and Matt Haney
Comparison Of Interferometry And Reverse Time Migration As Approaches For VSP Imaging Of Steep-Dip Boundaries
Jianhua Yu and Brian Hornby

4: 30 p.m.
Discussion

With the advancements in high performance computing, the promise of Reverse Time Migration (RTM) to solve complex imaging problems is quickly becoming a reality. However, there still remain many challenges to address, ranging from numerical issues to implementation problems to velocity model updating. The main focus of the workshop will be devoted to looking for answers to a range of questions such as; Would RTM replace all other imaging algorithms if computational constraints were no longer an issue? Should the industry now abandon the single-scattering concept that has been the driver of 50 years of geophysical advancement? What wave-equation should we use? What deficiencies does the RTM have and what are the possible remedies? What does it take to extend RTM to fully elastic media? This workshop will have a debate format where the advocates of RTM will make their case for its advantages over more accepted methods. The opposition will have opportunity to question the advantages of RTM compared to its problems and review the many successes of the imaging methods widely accepted and in current practice throughout industry today.

1:30 p.m.
Opening Remarks

1:35–3:05 pm p.m.
Session I: Invited Talks

1:35 p.m.
Speaker: Dan Whitmore, PGS
Title: An overview of migration methods

2:05 p.m.
Speaker: Yu Zhang, CGGVeritas
Title: Promises and superiority of RTM

2:35 p.m.
Speaker: Sam Gray, CGGVeritas
Title: Advantages of traditional imaging methods

3:05–3:30 p.m.
Session II: Poster Review and Coffee Break

3:30–4:50 p.m.
Session III: Panel Debate and Q&A

Panel 1: Advocates of traditional migration methods
Panelists: Sam Gray, CGGVeritas, Biondi Biondo, Stanford University and Dave Nichols, WesternGeco

Panel 2: Advocates of Reverse Time Migration
Panelists: Yu Zhang, CGGVeritas, Zhengzheng (Joe) Zhou, ION, and Jerry Schuster, University of Utah

Lead Questioners: John T. Etgen, BP and Ru Shan Wu, UC Santa Cruz

4:50–5:00 p.m.
Concluding Remarks & Wrap-up

The Phase 1 Project of SEAM (SEG Advanced Modeling Corporation) has made substantial progress toward computation of a large-scale 3D geophysical sub-salt model for the industry. This workshop has two purposes. The first is to communicate to the audience the initial results of the SEAM Phase 1 project, funded by industry members of the SEAM Phase 1 Consortium, including progress to date on the SEAM RPSEA project. We will present details of the SEAM Phase 1 Model, acquisition design, numerical algorithm verification, QC, and data storage and distribution. We will also present the vendor qualification and selection procedures. The second purpose is to present general planning to date for Phase 2 and initiate a dialog between SEAM and potential sponsors aimed at helping to define the focus geophysical problem for the Phase 2 project.

1:30 p.m.
Speaker: Bill Abriel
Overview of the SEAM Initiative

1:40 p.m.
Speaker: Michael Fehler,
Title: Technical and operational overview of SEAM Phase I Project

1:55 p.m.
Speakers: Richard S. Day, Edward Naylor, Josef Stefani and Dean Stoughton
Title: Construction and Composition of the SEAM Phase I Model

2:15 p.m.
Speakers: William Symes and Scott Morton
Title: Numerical Simulation issues

2:30 p.m.
Speakers: Chuck Meeder and Adam Seitchik
Title: Acquisition design and classic datasets

2:45–3:00 p.m.
BREAK

3:00 p.m.
Speaker: Stew Levin
Title: Data storage, data compression and data access

3:15 p.m.
Speakers: Michael Frenkel, Michael Hoversten, Lucy MacGregor and Friedrich Roth
Title: CSEM survey design and modeling

3:30 p.m.
Speaker: Neda Bundalo
Gravity Modeling

3:45 p.m.
Speakers: Michael Fehler
Title: RPSEA Project

4:00 p.m.
SEAM Phase II Discussion
Speakers: Bill Abriel and Arthur Cheng
Title: 4D reservoir model
Speakers: Steve Danbom and Ken Larner
Title: Land Seismic

The 2009 Development and Production Forum was held April 10-14th in Bahrain. The title of the forum was "Reservoir Characterization and Monitoring in Carbonates". The organizing committee led by Mike Wilt consisted of a mixture of professionals from the Arabian Gulf Region (Ralph Bridle, Abdulfattah Dajani, Alberto Marsala, Jie Zhang, Susan Vega, Raghu Ramamoorthy, and Mike Wilt) and the USA (Mike Batzle, Carlos Torres, Michael Payne, and Peter Duncan). Program sessions included geology, 3D and 4D seismic applications, fracture characterization, passive and other seismic techniques, non-seismic methods, petrophysics, and integrated studies. Program sessions included geology, 3D and 4D seismic applications, fracture characterization, passive and other seismic techniques, non-seismic methods, petrophysics, and integrated studies, with a more in-depth view of doing geophysics in carbonate reservoirs.

3D and 4D seismic talks highlighted the difficulties and specialized workflows required for data collection and interpretation in carbonates. Unlike clastics, the texture of the rock and geochemical properties play much enhanced roles in geophysical properties, making interpretation more challenging. Fracture characterization is a big issue in carbonates and several talks showed how fracture properties can be extracted from seismic data. The non-seismic session showed that resistivity methods are particularly effective in tracking Gulf water floods due to the high salinity nature of the injected brines. Borehole gravity was also discussed in its recent application to the Gulf Region challenges. The petrophyscial and lab studies sessions were particularly interesting as we learned that many of the standard tools developed for clastics are less reliable in carbonates. We also learned that many EOR processes are more difficult to monitor as their response is more muted in the stiffer carbonate rocks. Finally, there were several papers showing how several types of data may be integrated into common models. This post-convention workshop will reprise selected examples of the presentations from the forum to highlight the topics and provide a flavor of the unique style of D&P Forums.

Oral Presentations

1:30 p.m.
Speaker: Amos Nur
Title: 3D Digital Rock Properties Analysis on Carbonate Samples

2:00 p.m.
Speaker: Michael Batzle
Title: Seismic Attenuation in Carbonates

2:30 p.m.
Poster presenters- Description of individual poster in 3 minute talks

Poster Presentations

2:50 p.m.
Speaker: Moutaz Bassam Falih
Title: A Study of Permeability and Velocity Anisotropy in Carbonates

3:10 p.m.
Speaker: Maruuf Hussain
Title: Microfacies of Wadi Warq Carbonates

3:30 p.m.
Speaker: Ahmed Hassan
Title: A Study of Seismic Velocities and Differential Pressure Dependence in a Middle East Carbonate

Oral Presentations

4:00 p.m.
Speaker: Massimo Virgilio
Title: Simultaneous Join Inversion of EM, Gravity and Seismic Data

4:30 p.m.
Speaker: Martin Terrell
Title: ExxonMobil’s Experience in CO2 Flooding and 4D Seismic Monitoring in Carbonates

5:00 p.m.
Speaker: Pierre Thore
Title: Generation of Accurate and Realistic Synthetic Seismograms of a Karst reservoir using Finite Difference Modeling

The extensional tectonic forces that lead to the formation of rifted continental margins, and their subsequent passive margins, generate important structural and lithological density and susceptibility contrasts. The picture of a simple boundary between crustal and oceanic crust is clearly oversimplified. These processes produce gravity and magnetic anomalies that offer ways to investigate these processes, which can be related to:

• Changes in the style and directions of rifting during rifting
• Magmatic underplating of the lower crust
• Exposure or hydration of the upper mantle when spreading is non-uniform
• Basement structuring in the early extensional syn-rift phase
• Thermal subsidence during passive margin evolution.
• Sedimentary processes such as carbonate build-ups and salt mobilization.
• Syn-rift volcanism or even subtle susceptibility contrasts between salt bodies and surrounding clastic sediments.

This workshop aims to investigate the application of gravity and magnetic data over passive margins and to examine and discuss current processing and interpretation techniques used to explore in rifted and passive margin regions.

Rocks that were considered to be seal ten years ago are now being treated as reservoirs. In the past decade there has been an explosion of interest in shale gas and tight gas sand plays. These represent an important reserve opportunity, but are challenging to produce and characterize. The use of geophysics to actually affect the development has been limited, with the exception of fracture characterization and hydro-frac monitoring. Perhaps the main challenge for geophysics is to develop tools and techniques that can positively affect the development economics. The objective of the workshop will be to present and discuss why we are afflicted by this limitation, starting with the fundamental rock physics, technical challenges, case histories, and the road ahead.

1:30 p.m.
Opening remarks

1:35 p.m.
Title: Tight Gas Sands: Petrophysics and Rock Physics
Authors: Carl H. Sondergeld, Chandra S. Rai, and Pablo Limpias
Mewbourne School of Petroleum and Geological Engineering
The University of Oklahoma, Norman, Oklahoma

2:00 p.m.
Title: Reducing Fractured Reservoir Model Uncertainty with Microseismic Events, Geology, and History Matching
Authors: Sherilyn Williams-Stroud, Microseismic Inc., and James Erdle, Computer Modelling Group

2:25 p.m.
Title: Hydraulic Fracture Microseismic Imaging in Unconventional Reservoirs
Author: Shawn Maxwell, Schlumberger

2:50 p.m.
Break

3:15 p.m.
Title: Seismic-well Calibration, Facies Mapping and Reservoir Simulation at Jonah Field
Authors: Reinaldo Michelena, Mike Uland, Jim Gilman, and Patricia Rodrigues, iReservoir.com

3:40 p.m.
Title: Understanding Permeability in Northern Chicontepec Basin from a Geological, Geophysical, and Engineering Perspective
Authors: Bradley C. Wallet, Supratik Sarkar, Deepak Devegowda, Sergio Chávez-Pérez*, Roger Slatt, and Kurt J. Marfurt, The University of Oklahoma and Instituto Mexicano del Petróleo (*)

4:05 p.m.
Discussion and the road ahead

4:25 p.m.
Concluding remarks

4:30 p.m.
Adjourn

Seismic interpretation has come a long way from paper sections to volume visualization. Recent advances include high-resolution stratigraphy and seismic geomorphology, fancy new attributes, nifty algorithms borrowed from the image processing community, and transformations to paleogeographic domains. But where exactly are we, and more importantly, where are we going and how will it add value? This workshop will bring together researchers, developers, and interpreters to discuss recent technological advances as well as case histories to explore their technical and business benefits.

1:30 p.m.
Introduction

1:35 p.m.
Speaker: Hongliu Zeng (BEG)
Title: Stratal Slicing: Benefits And Challenges.

2:00 p.m.
Speaker: Sergey Fomel (BEG)
Title: Volumetric Surface Extraction By Predictive Painting.

2:25 p.m.
Speaker: Tommy Gerber (Chevron)
Title: Using Volumetric Surface Extraction And Flattening As A Tool In Seismic Stratigraphy And Geomorphology.

2:50 p.m.
Speaker: Sébastien Lacaze (Eliis)
Title: Paleoscan: A Global Approach In Seismic Interpretation.

3:15 p.m.
Break

3:25 p.m.
Speakers: Manuel Poupon and Gabriel Guerra (Shell International E&P)
Title: A New Class of Large-scale Attributes For Seismic Stratigraphy.

3:50 p.m.
Speaker: Tom Smith (App Geo Research)
Title: Self-Organizing Maps Of Multi-Attribute 3D Seismic Reflection Surveys.

4:15 p.m.
Speaker: Mirko van der Baan (University of Alberta)
Title: Nonstationary Phase Estimation: A Tool For Seismic Interpretation?

4:40 p.m.
Speaker: Olav Inge Barkved (BP)
Title: Full Wave Form Inversion: Providing Seismic Velocities With A Step Change In Interpretive Value.

5:05 p.m.
Conclusion

It has been over 25 years since converted compressional to shear-waves (PS-waves) were recognized as a viable source of shear-wave information. The acquisition, processing/analysis and application of PS-waves have over these years successfully addressed many industry challenges in imaging through gas and imaging targets of poor P-wave reflectivity. Other successful applications in obtaining elastic rock properties for reservoir characterization have been lithology delineation in clastics and to a limited degree stress/fracture analysis and fluid discrimination. Interestingly, PS-waves have proven to provide increased shallow resolution – dramatically so in the marine environment. Notwithstanding these successes however, multicomponent technology at present represents only 5% to 10% of industry’s seismic effort. There are still acquisition, processing, velocity model building and prestack imaging issues as well as challenges incorporating elastic properties from PS data in our reservoir modeling.

The objective of this workshop is to examine past and present challenges the industry has faced in utilizing shear-wave technology for exploration and production of hydrocarbons. After an historical overview of these efforts with a focus on PS-waves, our aim is to highlight successes in joint PP/PS analyses and assess if current advancements are addressing industry challenges and needs. Are we on the right track and how long until we see the use of PS data playing a more significant role in seismic applications?

Introduction: Jim Gaiser
Keynote presentation:
Speaker: Robert Stewart (University of Houston).
Title: The measure of full motion: Multicomponent seismic exploration and its value

Acquisition: Jim Gaiser

Speaker: Chris Walker (RXT)
Title: Application of MEMS technology in OBS

Speaker: Shuki Ronen (Seabird Exploration)
Title: Technology and economy of ocean bottom nodes on the first anniversary of the first 5C crew

Speaker: Mark Meier (ExxonMobil)
Title: Converted-wave survey design

Speaker: Gregg Hofland (ION)
Title: Data integrity and operational efficiency measures for multi-component imaging

Applications: Bob Tatham

Speaker: Robert Tatham (University of Texas at Austin)
Title: An applications oriented data base of interpretations of seismic P- and S-wave data

Speaker: Rodney Johnston (BP)
Title: Converted-wave imaging challenges

Speaker: Bob Kidney (EOG)
Title: Delineation of a diagenetic trap using P-wave and converted-wave seismic data in the Miocene McLure shale, San Joaquin basin, CA

Speaker: John Tinnin (GXT)
Title: Reducing risks and increasing production with multicomponent technology

Processing/Analysis, Inversion and Prestack imaging: Vijay Khare

Speaker: Mrinal Sen (University of Texas at Austin)
Title: Estimation of properties of shallow sediments from multi-component ocean bottom seismometer data

Speaker: Xiang-Yang Li (British Geological Society, EAP)
Title: Use of multicomponent seismic data for oil-water discrimination in fractured reservoirs

Speaker: Bruno Gratacos (CGGVeritas)
Title: Amplitude effects associated with shear-wave splitting

Speaker: Pascal Edme (Schlumberger Cambridge Research)
Title: Near-surface S-wave velocity estimation from P-wave polarization analysis

Break

Speaker: Paul Sava (Colorado School of Mines, CWP)
Title: 3D elastic-wave mode separation for TTI media

Speaker: Kurang Mehta (Shell)
Title: Advancements in processing and imaging of downhole multi-component data

Speaker: Dean Witte (Transform Software and Services)
Title: Attribute-driven multi-component registration

Speaker: Tim Jenkinson (ExxonMobil)
Title: Pre-conditioning angle stack input for joint PP-PS inversion

Stress is a fundamental geophysical field which impacts many aspects of exploration and production as well as rock properties. In exploration applications, the stress field impacts the drillability of wells, the porosity and permeability of the reservoir, and the sealing capacity of faults. Changes in the stress field due to production may lead to reservoir compaction, surface subsidence, formation fracturing, casing deformation and failure, sanding, reactivation of faults and bedding parallel slip. Fortunately, rock properties and specifically those governing surface and borehole seismic and borehole acoustic waves are sensitive to stress.

The objective of this workshop is to discuss the state-of-the-art in assessing the sensitivity of rocks to stress with emphasis on applications in exploration and production. This workshop will focus on understanding this dependence on stress, and inverting seismic and borehole acoustic velocities for the state of stress in the rock.

Stress dependence of Granular Media

8:30 a.m.
Author: Jim Berryman (LBNL)
Title: Pressure dependence of elastic moduli in grain packs: Quantifying a rattler-jamming mechanism

8:50 a.m.
Authors: Per Avseth (Odin Petroleum), Kenneth Duffaut (Statoil) and Martin Landrø (NTNU)
Title: What happens with stress sensitivity when we go from loose sediment to consolidated rock? Rock physics modeling versus 4D seismic observations

9:10 a.m.
Authors: Shiyu Xu and Ganglin Chen (ExxonMobil)
Title: Stress-Induced Anisotropy in Unconsolidated or Weakly Consolidated Sands: Concept, Laboratory Validation and Application to Seismic Modeling

9:30 a.m.
Author: De-Hua Han (U. of Houston)
Title: Pressure effect on seismic (dynamic) and mechanical (static) properties of rocks

9:50 a.m.
Discussion

10:10 a.m.
Break

Effects of pore shape

10:20 a.m.
Author: Serge Shapiro (FUB)
Title: Stress dependent elasticity of transversely isotropic rocks: a porosity deformation approach

10:40 a.m.
Author: Boris Gurevich (Curtin U and CSIRO)
Title: A simple model of stress dependent dispersion and attenuation due to squirt flow

11:00 a.m.
Author: Arthur Cheng
Title: Inversion of stress-dependent velocity data for pore geometry

11:20 a.m.
Authors: Shaik, AK, Alam, MM, Fabricius, IL (Technical University of Denmark)
Title: Stress effects on physical properties of chalk from South Arne field, North Sea

11:40 a.m.
Discussion

12:00
Break for Lunch

Stress effects in the overburden

1:00 p.m.
Author: Dave Dewhurst (CSIRO)
Title: Stress-dependence of velocity and its anisotropy in shales

1:20 p.m.
Author: Colin Sayers (Schlumberger)
Title: The effect of the smectite-to-illite transition on the velocity vs. effective stress relation of shales, and implications for seismic pore pressure prediction"

1:40 p.m.
Authors: Arpita Pal Bathija, Mike Batzle, and Manika Prasad (Colorado School of Mines)
Title: An experimental study of the dilation factor

2:00 p.m.
Authors: Paul Hatchell, Peter Wills, and Catalin Didraga (Shell International Exploration and Production)
Title: Time-lapse monitoring of surface waves

2:20 p.m.
Discussion

2:40 p.m.
Break

Stress effects in field data

2:50 p.m.
Authors: Doug Schmitt, Claire Currie and Lei Zhang (U of Alberta)
Title: Measuring and indicating crustal stress magnitudes and directions: examples from hydraulic fracturing, borehole imaging, and core damage"

3:10 p.m.
Author: Ran Bachrach (WesternGeco and Tel Aviv U.)
Title: in-situ estimation of stress sensitivity parameters

3:30 p.m.
Author: Romain Prioul (Schlumberger)
Title: Do we really need to know stress-sensitivity of rocks for practical applications? What do we learn from models and in situ sonic measurements?"

3:50 p.m.
Author: Colin Sayers (Schlumberger)
Title: Variation in elastic wave velocities due to stress changes in the vicinity of a borehole"

4:10 Discussion

4:30 End

Full (acoustic) wave-equation imaging, e.g., Reverse-Time Migration (RTM) has become widely affordable and accessible, and is beginning to be recognized as the ultimate imaging solution for complex areas; Nonetheless, many challenges remain in exploiting the full power of full wave-equation imaging, including building workflows in which all elements correspond to the sophistication of the final imaging, and avoiding artifacts arising from the comprehensiveness of the wave equation solutions. In particular it seems that model-building is (again) lagging behind migration technology, and may therefore undermine the apparent advance in addressing complex imaging problems. In this workshop we aim to consider the state of the art in imaging in such areas, identify the challenges, and explore potential responses.

8:45 a.m.
Opening remarks

Technical Session 1: Inversion-based imaging and wave-based migration velocity analysis

8:50 a.m.
Speaker: Biondo Biondi, Stanford University
Title: Linearized waveform inversion for sub-salt imaging, time-lapse monitoring and simultaneous shooting
Authors : Yaxun Tang, Gboyega Ayeni (Stanford University) and Alejandro Valenciano (PGS)

9:10 a.m.
Speaker: Robert Soubaras, CGGVeritas
Title: Migration velocity inversion: where could it fit between ray-based tomography and full waveform inversion?
Authors : Robert Soubaras and Bruno Gratacos, CGGVeritas

9:30 a.m.
Speaker: Paul Sava, Colorado School of Mines
Title: Wavefield-based migration velocity analysis with space/time extended images
Authors : Tongning Yang and Paul Sava, CWP, Colorado School of Mines

9:50 a.m.
Speaker: Ivan Vasconcelos, GXT
Title: Image-domain wave-equation tomography - strategies, examples and role in model building
Authors : Ivan Vasconcelos, Huub Douma & Robert Bloor, GXT

10:10 a.m.
Coffee Break

Technical Session 2: Reverse Time Migration and Velocity Analysis

10:25 a.m.
Speaker: Christof Stork, TierraGeo
Title: Dip dependent illumination analysis using RTM with different acquisition geometries.
Authors : Christof Stork and Dave Diller

10:45 a.m.
Speaker: Hongbo Zhou, Respsol
Title: Migration Velocity Analysis = Migration + Velocity Analysis (with traveltime)
Authors : Hongbo Zhou, Qingbo Liao, and Francisco Ortegosa

11:05 a.m.
Speaker: Sang Yong Suh, TGS-NOPEC
Title: High Performance Reverse Time Migration -- with Application to Gulf of Mexico Deepwater Subsalt Imaging
Authors : Sang Yong Suh

Panel Discussion 1: Issues on RTM and Wave-based velocity analysis

11:25 a.m.
Ian Jones, GXT
Title: Introduction to panel discussion

11:30 a.m.
All panelists

12:00
Lunch Break

Technical Session 3: Full-Waveform Inversion

1:30 p.m.
Speaker: Jerry Schuster, University of Utah
Title: Multi-source Least Squares Migration, Waveform Inversion, and MVA Analysis
Authors : Wei Dai, Ge Zhan, Xin Wang, and Gerard Schuster, University of Utah

1:50 p.m.
Speaker: René-Édouard Plessix, Shell
Title: 3D full waveform inversion: a real example from the Gulf of Mexico
Authors : René-Édouard Plessix and Colin Perkins, Shell International E&P

2:10 p.m.
Speaker: Steve Kelly, PGS
Title: Examples of full-waveform inversion for dual-sensor, synthetic and field recordings
Authors : Steve Kelly, Jaime Ramos-Martínez, Sean Crawley and Boris Tsimelzon, Petroleum Geo-Services, and Qunshan Zhang, Univ. of Texas at Dallas

2:30 p.m.
Coffee Break

2:45 p.m.
Speaker: John Etgen, BP
Title: Full Waveform inversion: Beyond Imaging
Authors : Laurent Sirgue and John Etgen, BP

3:05 p.m.
Speaker: Joe Meng, ConocoPhillips
Title: Dip guided full waveform inversion for high resolution velocity
Authors : Zhaobo Meng, Leming Qu, Yong Ma, ConocoPhillips, Dave Hale., CSM

3:25 p.m.
Speaker: Denes Vigh, WesternGeco
Title: Acoustic Waveform Inversion with Anisotropy
Authors : Denes Vigh, Bill Starr, HongYan Li, and Kun Jiao WesternGeco

3:45 p.m.
Panel Discussion 2: Issues on Full Waveform Inversion

3:45 p.m.
Paul Williamson, TOTAL
Title: Introduction to panel discussion

3:50 p.m.
All panelists

4:20 p.m.
Concluding remarks

This workshop will give an overview of the use of geothermal energy to produce electricity. The United States is the world’s leader in the production of geothermal with many new projects currently being contemplated or developed. Three types of geothermal electrical production will be discussed. One is the conversion of oil and gas wells that co-produce large amounts of hot water for use in direct electricity generation. The second are hydrothermal resources consisting of high permeability hot rock. The source of the heat in these systems is typically magmatic and they often have significant amounts of in-situ water. The final geothermal system we will discuss are enhanced geothermal systems, or what is often called hot, dry rock. These are systems that are generally deep and impermeable, possibly drilled into bedrock, with little or no in-situ water. The source of the heat can be either magmatic or the decay of radioactive elements in basement rock. Each of these types of geothermal involve different kinds of technologies and present unique opportunities and challenges.

The workshop will have speakers from Australia, Europe, and the United States who will discuss geothermal systems from the perspectives of exploration, drilling, and finance. The talks will be 30 minutes long with 10 minutes for questions in order to facilitate presenting the topics in depth while leaving time for significant discussion. Geothermal exploration and drilling has much in common with the oil and gas industry, but it also involves some unique technologies and presents special challenges. One of the main objectives of the workshop is to highlight the similarities and differences between geothermal and oil and gas in order to facilitate the transfer of technology and know how between the two fields.

8:30 am – 8:55 am: John K. Prentice (TriplePoint Physics)
Introduction and Geothermal Overview

8:55 am – 9:35 am: Barry Goldstein (PIRSA)
Hot Rock Play Ingredients, Characteristics, and Potential – An Australian Perspective

9:35 am – 10:15 am: Hartwig von Hartmann (LAIG)
Exploration of Hydrogeothermal Prospects in Germany

10:15 am – 10:55 am: Thomas Anderson (RMOTC)
Geothermal in the Oilfield: Using Hot Produced Water for Power Generation

10:55 am – 11:10 am: BREAK

11:10 am – 11:50 am: David Castillo (GeoMechanics International)
Geomechanical Considerations Regarding Geothermal Operations

11:50 am – 12:30 pm: William Cumming (Cumming Geoscience)
A Conceptual Model Approach to the Geophysical Exploration of Permeable Geothermal Reservoirs That Considers Context

12:30 pm – 1:30 pm: BREAK

1:30 pm – 1:55 pm: Mary Fuka (TriplePoint Physics)
Surveying of the Geothermal Landscape

1:55 pm – 2:35 pm: Douglas Blankenship (Sandia National Laboratories)
Enhanced Geothermal Systems Well Construction Technology Evaluation

2:35 pm – 2:45 pm: BREAK

2:45 pm – 3:25 pm: Des FitzGerald (Intrepid Geophysics)
Remote Sensing of Heat Anomalies

3:25 pm – 4:05 pm: Gang Yu (KMS Technologies)
Geothermal Exploration Using MT and Gravity Techniques at Szentlörinc Area in Hungary

Technologies used in the application of near surface seismology and ground penetrating radar (GPR) have seen significant advances over the last several years. Both methods have benefited from new processing tools, increased computer speeds, and an expanded variety of applications. Many shallow seismic projects now incorporate analysis results from different parts of the seismic wavefield allowing greater redundancy and confidence in interpretations without increased acquisition costs. More information is being extracted from GPR data by utilizing the wide range of analysis techniques developed for seismic data in concert with new tools specific to electromagnetic wave analysis.

It is fitting that these two geophysical techniques share the stage for a workshop that focuses on the highlights of an ever-increasing number of near surface studies taking advantage of the wide range of processing and analysis approaches applicable to both. This workshop is designed to bring the best of the past decade, state-of-the-practice applications of today, and visions for the next decade together providing practitioners and researchers with a unique opportunity to interact and share experiences.

8:30 a.m.
Methodology
Speaker: Jianghai Xia, Kansas Geological Survey, USA
Title: Surface wave imaging/material characterization with Love and Rayleigh waves

Speaker: Colin Zelt, Rice University, USA
Title: Frequency-dependent traveltime tomography for near-surface studies”

Speaker: James Irving, University of Lausanne, Switzerland
Title: Estimation of the lateral correlation structure of subsurface velocity heterogeneity from surface-based geophysical reflection images

Speaker: Sébastien Lambot, Université catholique de Louvain, Belgium
Title: GPR inversion for soil water content estimation”

10:30 a.m.
Theory
Speaker: Partha Routh, ConocoPhillips, USA
Title: GPR Scattering Theory

Speaker: Gerhard Pratt, Queen's University, Canada
Title: Seismic Waveform Inversion

Speaker: Jan van der Kruk, Institute of Chemistry and Dynamics of the Geosphere, Forschungszentrum Jülich, Germany
Title: Towards true-amplitude migration of GPR data using exact radiation patterns”

12:00
Break for Lunch

1:30 p.m.
Integration

Speaker: Erwan Gloaguen, Institut national de la recherche scientifique (INRS), Canada
Title: Bayesian data integration using stochastic tomographies and high-resolution hydrogeological logs

2:00 p.m.
Case Studies

Speaker: Andre Pugin, Geological Survey Canada
Title: Unconsolidated sediment mapping using multi-component seismic reflection data”

Speaker: Lee Liberty, Boise State University, USA
Title: Near-surface seismic reflection methods in an urban environment

3:00 p.m.
Wrap-up and Concluding Remarks

The workshop is jointly sponsored by SEG and SPWLA and has the goal of creating a direct dialog between the vendors and operators on how best to take advantage of the directional LWD resistivity instruments to maximize the profitability of each well and field. The workshop will identify challenges in data acquisition, processing, and interpretation, and propose possible ways forward to address these challenges. Detailed topics may include:

• The current problems & challenges faced when using directional LWD resistivity measurements for well placement and formation evaluation such as drilling risk reduction, well landing and navigating within reservoirs, and populating reservoir models using these measurements
• Challenges and learnings in real time FE using directional LWD resistivity tools
• What is done now and what is needed for the future: short, medium, and long term
• Where is the frontier of directional LWD resistivity R & D
• Identification of current best practices using directional LWD resistivity technology

Bandlimited seismic inversion can be robustly and efficiently performed through the application of a spectral shaping (“colouring”) filter that matches the seismic data spectrum to the average well log impedance spectrum (Lancaster and Whitcombe, 2000). This approach can be further enhanced by application of the spectral shaping filter to un-migrated data. Pre-migration spectral shaping improves the accuracy and signal-to-noise ratio of inversion results. Application of the shaping filter early in the processing sequence creates a range of new opportunities for better preservation of the low-frequency part of the seismic spectrum through the processing work flow.

In this workshop we will share some of our worldwide experiences with the “Coloured” and Pre-Migration Spectral Shaping Inversion methods. The examples will highlight benefits related to basic interpretation tasks (net-to-gross and lithology prediction, DHI ranking and fluid contact identification, time-lapse, improved imaging for low-signal-to-noise-ratio data, or under complex and absorbing overburden) and different business stages (exploration, development, production). In addition, we hope to focus attention on the value of low-frequency information, which forms the backbone of the inversion products. The examples will demonstrate that low frequencies are critical for better imaging of the sub-surface, not only for image-challenged areas (e.g. sub-salt, sub-basalt), but even for high-signal-to-noise-ratio data and in well-imaged areas.

8:30 a.m.
Speaker: Spyros Lazaratos
Introduction

9:00 a.m.
Speaker: Steve Lancaster
Title: Coloured Inversion, The physical model and recommended implementation

9:30 a.m.
Speaker: David Whitcombe
Title: Strategies for extending usable bandwidth

10:00 a.m.
Break

10:15 a.m.
Speaker: Adam Bucki
Title: Interpretation impact from Pre-Migration Spectral Shaping Inversion

10:45 a.m.
Speaker: Shelly Roth
Title: Spectral shaping applications in the Gippsland Basin, Australia

11:15 a.m.
Break

12:15 p.m.
Pre-Migration Spectral Shaping Inversion applications in West Africa

• Detuning and improved resolution, Steve Jones
  
• Sand prediction, Eric Wildermuth
  
• Application in deepwater field development, JJ Lee
  
• Integration with modeling, Rachel Paez
  
• 4D seismic interpretation, Scarlet Castro

1:45 p.m.
Break

2:00 p.m.
Speakers: Bruno Gratacos, John Gibson, Jon Sallas, Guido Baeten and Robert Dowle
Title: Pushing the low frequency limits in land and marine acquisition - some recent experiences

2:40 p.m.
Speakers: Suhail Butt, Rick Brooymans, Celine Lacombe and Henning Hoeber
Title: We can do better with the low frequencies if we try

3:00 - 3:30 p.m.
Wrap-up and discussion

Shale studies, long neglected relative to research on sandstones and carbonates, have risen to recent prominence by the convergence of several distinct trends. Higher gas prices have made the exploitation of unconventional resources more appealing, and the total resource of shale gas is staggering. (One estimate of the Marcellus shale resource makes it the largest single source of natural gas on the globe!) Especially now that gas prices have been weaker, there is a need to control costs. How can geophysics aid in moving shale exploitation to being geoscience-driven?

Shales have historically been seen as the impediment that had to be drilled through to arrive at the pay zone. Now shales are also recognized as critical in providing the seals that allow hydrocarbons to build to economic concentrations in the subsurface. How can seismic recognition of overpressured zones, generally through identification of lower interval velocities, lead to better models of seal formation? What are the implications for generation and migration of hydrocarbons?

Locally, shales act as top seal and lateral seal for many conventional hydrocarbon reservoirs. Time-lapse seismic experiments have produced the counter-intuitive results that bounding shales have a larger time-lapse signature than the reservoir itself. How can these measurements usefully constrain the reservoir depletion model and inform the reservoir intervention decision plan? What is the resolution and uncertainty of seismic-derived analyses of shale strains?

Properties of Shales

Speaker: Stephen Holditch
Title: Stimulation of gas shale reservoirs

Speaker: Ivar Brevik
Title: Control factors on seismic and resistivity anisotropy in shales

Speaker: Mike Batzle
Title: Frequency dependent anisotropic moduliii in shales

Speaker: Joel Walls
Title: Using microseismic data to improve production modeling in a horizontal, hydraulically fractured gas shale well

Speaker: Paul Hatchell
Title: Monitoring geomechanical changes inside and outside the reservoir using time-lapse seismic

Shale Rock Physics I

Speaker: Lev Vernik
Title: Anisotropy of organic-rich shale: Causes and Consequences

Speaker: David Dewhurst
Title: Shale strength estimation from physical, petrophysical and rock physics properties

Speaker: Manika Prasad
Title: Old and new insight on organic rich shale

Speaker: Chandra Rai
Title: Petrophysical properties of gas shales

Speaker: John Rasmus
Title: Resistivity and Dielectric Dispersive Shales – What are the petrophysical implications?

Geomechanics and Shale Reservoirs

Speaker: Mark Zoback
Title: Potential utilization of CO2 in shale gas reservoirs for enhanced recovery and sequestration

Speaker: Daniel Moos
Title: Geomechanical controls on fracture flow properties in shales

Speaker: Ahmad Ghassemi
Title: In-situ stress, fracturing, and natural fracture behavior

Speaker: Makul Sharma
Title: A Drilling engineers and a reservoir engineers view of shales

Speaker: Tom Olsen
Title: Completion optimization issues in the low permeability Bakken oil play

Speaker: Russ Ewy
Title: Shale Geomechanics

Seals, Overpressure, and Compaction Trends

Speaker: Leon Thomsen
Title: Pore Pressure Compartments: Their Sociology and Implications for Shale Mechanics

Speaker: Philip Heppard
Title: What’s normal compaction anyway?

Speaker: Nazmul Haque
Title: Mudstone compaction and evolution of rock properties – Implications for shale reservoir and seal integrity

Speaker: De-hua Han
Title: Shale compaction in sedimentary processing

Speaker: Brian Hornby
Title: Shale compaction and anisotropy – parameter estimation, in-situ measurements and implications for pore pressure estimation and seismic imaging

Shale Rock Physics II

Speaker: Amos Nur
Title: Computational rock physics for shales

Speaker: Boris Gurevich
Title: Modeling stress dependent anisotropy of shales using double porosity approach

Speaker: Azra Tutuncu
Title: Revisiting nonlinear viscoelasticity for unconventional reservoirs and their seals

Speaker: Rune Holt
Title: Stress path dependent wave velocities in clays and shales

Speaker: Michael Payne
Title: Rock physics applications in shales