References Cited: Part 7. Geophysical Methods

AAPG Special Volumes

... estimation from full waveform acoustic logging data: The Log Analyst, v. 29, p. 112-122. Carlini, A., and A. Mazzotti, 1989, Optimized receiver array...

Reservoir properties estimation using MAZ towed multisensor streamer seismic: A Norwegian case study

Cyrille Reiser, Roberto Ruiz

International Meeting for Applied Geoscience and Energy (IMAGE)

... through a comprehensive Velocity Model Building (VMB) flow where Full Waveform Inversion (FWI) using refractions and reflections in a MAZ setting...

Null-space shuttle inspired feature-targeted uncertainty analysis and stochastic inversion improvement

Jingfeng Zhang, Esteban Díaz, Anar Yusifov, Ganyuan Xia

International Meeting for Applied Geoscience and Energy (IMAGE)

...eted uncertainty analysis in full-waveform inversion: Geophysics, 86, no. 1, R63– R76, doi: https://doi.org/10.1190/geo2020-0192.1. Liu, Q. and D. Wang, ...

Seismic super resolution method for enhancing stratigraphic interpretation

Chengbo Li, Qingrong Zhu, Baishali Roy

International Meeting for Applied Geoscience and Energy (IMAGE)

... for acquiring highresolution seismic (e.g., Li et al., 2012; Mosher et al., 2017); broadband processing and full waveform inversion were widely adopted...

Deep neural networks for 1D impedance inversion

Vladimir Puzyrev, Anton Egorov, Anastasia Pirogova, Chris Elders, Claus Otto

Petroleum Exploration Society of Australia (PESA)

... in the modelling result, while the free surface multiples are not generated. In general, this inversion can be viewed as an alternative to 1D full waveform inversion...

Advanced Processing and Inversion of Two AEM Datasets for 3D Geological Modeling: The Case Study of Spiritwood Valley Aquifer; #80434 (2014)

Vincenzo Sapia, Andrea Viezzoli, Greg Oldenborger, Flemming Jørgensen

Search and Discovery.com

... will focus mainly on the results obtained from AeroTem III and “Full Waveform” VTEM survey flown over the Spiritwood Valley Aquifer in Manitoba (Figure 1...

Automated velocity modeling with domain transformations

Kevin Gullikson, Arnab Dhara, Ram Tuvi, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the art in seismic inversion is full waveform inversion (FWI), a nonlinear optimization method in which the shots are simulated by forward modeling...

From exploration to diagnosis: Can geophysicists revolutionize healthcare?

Chuck Peng, Maurice Nessim

International Meeting for Applied Geoscience and Energy (IMAGE)

...[5]. Full waveform inversion was also reported in literature where a super-computer was used to invert for sound speed variations by exactly matching...

Full-elastic AVA extraction using acoustic FWI

Michael Warner, John Armitage, Adrian Umpleby, Nikhil Shah, Henry Debens, Fabio Mancini

International Meeting for Applied Geoscience and Energy (IMAGE)

... unprocessed seismic data using purely acoustic full-waveform inversion. The resultant parameters incorporate the full elastic response of the observed...

Resolving Seismic Attenuation Issue through Q-Migration, a Case Study in Sisi-Nubi Field, Indonesia

Bastian Hutahayan, Keat Huat Teng, Kelik Moersidin, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam

Indonesian Petroleum Association

.... To achieve this, we need more advanced model building tool, a full waveform inversion, for instance. Note that, strong absorption that is observed...

Seismic Foldout: Northern North Sea: A Dual-Azimuth Solution

Anna Rumyantseva, Jaswinder Mann-Kalil, Idar Kjørlaug, CGG

GEO ExPro Magazine

... these needs (see foldout and Figure 1). By applying high-­ resolution time-lag full-­waveform inversion (TLFWI) to a dataset c ­ ombining the two azimuths...

Seismic Foldout: Potential Prospectivity Identified in the Orphan Basin

Yermek Balabekov, Yang Yang, Sriram Arasanipalai, PGS Ultima

GEO ExPro Magazine

... to the main products. Text: Yermek Balabekov, Yang Yang, Sriram Arasanipalai; PGS Full Waveform Inversion (FWI) followed by Least-Squares Migration (LSM...

Illuminating the Complex Geology of the UK Faroe Shetland Basin

Antonio Castiello, Gareth Venfield, Jens Beenfeldt

GEO ExPro Magazine

... precisely. The VMB employed in this project is a combination of highresolution Full Waveform Inversion (FWI) and reflection tomography, constrained by both...

What do acoustic FWI derived amplitudes mean in terms of elastic properties?

Dhananjay Kumar, Ana Garcia-Ceballos, Joe Dierkhising, Abigail Maxwell, Akkel Paul

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Abigail Maxwell, and Akkel Paul, bp ⁺ Now at Colorado School of Mines Summary Full waveform inversion (FWI) derived reflectivity (FDR) is a derivative...

Transformation of point-to-line source seismogram in a 2D geological model

Moosoo Won, Bing Zhou, Mohamed Jamal Zemerly, Mohammad Al-Khaleel, Mohamed Kamel Riahi

International Meeting for Applied Geoscience and Energy (IMAGE)

... prior to 2-D full waveform inversion is recommended for efficiently producing high-resolution images of the subsurface. The traditional filter...

FWI derived reflectivity gathers in angle domain

Hu Jin, Simon Luo, Qingqing Liao, Xukai Shen, Ganyuan Xia, Madhav Vyas

International Meeting for Applied Geoscience and Energy (IMAGE)

... gathers in angle domain Hu Jin∗ , Simon Luo, Qingqing Liao, Xukai Shen, Ganyuan Xia, and Madhav Vyas bp SUMMARY Full-waveform inversion (FWI) images have...

Revealing the subsalt in Garden Banks with a sparsely-shot TPS OBN and FWI

Michael Merritt, Guido Baeten, Vishram Rambaran, Karen Godfrey, Kevin Bianchini, Tara Brothers, Frederic Chelminski, Alex Hao, Huawei Gao, Yingxue Su, Zhiyuan Wei

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Wang, 2021, Full-waveform inversion for full-wavefield imaging: Decades in the making: The Leading Edge, 40, 324–334, doi: https://doi.org...

The Effects of Seismic Data Conditioning on Pre-Stack Simultaneous Impedance Inversion

Scott W. Singleton

GCAGS Transactions

... is then compared to a synthetic gather (in this case, a full waveform solution was used that includes the effects of attenuation, multiples...

Nonlinear LS-RTM based on the seismic scale separation and full-wavefield multiparameter FWI

ystein Korsmo, Yang Yang, Nizar Chemingui, Andrey Pankov, Antonio Castiello

International Meeting for Applied Geoscience and Energy (IMAGE)

.... In this paper, we will discuss the various properties and implementations of LSM and Full Waveform Inversion (FWI) and suggest a new nonlinear least...

Deep learning approach to inverting flexural wave dispersion

Hengjian Zhang, Zhifen Sun, Xianzhi Li, Xiaofang Sun, Chu Wang, Ya Jin, Xiaofei Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... attenuation from full waveform acoustic logs: Journal of Geophysical Research: Solid Earth, 87, 5477–5484, doi: https://doi.org/10.1029/JB087iB07p05477...

Velocity model building and imaging driven by FWI with dual-azimuth data in a complex salt environment: Brazil case study

Xu Li, Christine Gans, Young Ho Cha, Diwi Snyder, Gopal Palacharla, Vijay Gottumukkula, Yaofeng He, Hongchuan Sun, Tetyana Vdovina, Xueyi Jia, Valeriy Brytik, Inmaculada Dura-Gomez

International Meeting for Applied Geoscience and Energy (IMAGE)

... azimuthal well log constrained tomography, iterative full waveform inversion (FWI) leveraging 3D mesh interpretation and wave-equation-based map...

Massive focal mechanism solutions from deep learning in west Texas

Yangkang Chen, Omar M. Saad, Alexandros Savvaidis, Fangxue Zhang, Yunfeng Chen, Dino Huang, Huijian Li, Farzaneh Aziz Zanjani

International Meeting for Applied Geoscience and Energy (IMAGE)

... solutions align well with the strikes, dips, and rakes of the known faults that were explored previously using full-waveform-based methods. INTRODUCTION...

An integrated approach to subsurface uncertainty and risk analysis from offshore Trinidad

Raihaan Ali, Randy Partap, Sarika Ramnarine, Tariq Karamath, Daisy Ramsaran

International Meeting for Applied Geoscience and Energy (IMAGE)

... and even multiples (Zhang et al., 2020). Tarantola (1984) proposed full waveform inversion (FWI) which can build an Earth model automatically through...

Chapter 8: Amplitude Versus Offset

Tom Wittick

North Texas Geological Society

... for determining Poisson’s ratio over a given depth interval. Without a full-waveform sonic log one must estimate Poisson’s ratio for the strata...

Amplitude Versus Offset

Abilene Geological Society

... difficult and expensive to measure. Poisson's ratio is a function of the ratio of P-wave and S-wave velocities. The full-waveform sonic tool measures S-wave...