Generative modeling for inverse problems

Rami Nammour

International Meeting for Applied Geoscience and Energy (IMAGE)

... (termed FWI: Full Waveform Inversion) leads to a computationally expensive, non-convex optimization. The large scale of the IP limits feasible...

Prestack joint inversion based on multi-components seismic data using analytical solution of 1D elastic wave equation

Weiheng Geng, Wenkai Lu, Jingye Li, Xiaohong Chen, Yinshuo Li, Lei Han, Cao Song

International Meeting for Applied Geoscience and Energy (IMAGE)

... years, computer technology has flourished, making it gradually possible to numerically solve the elastic wave equation. Full waveform inversion (FWI...

Subsurface uncertainty quantification with deep geologic priors: A variational Bayesian framework

Ashutosh Tewari, Brent Wheelock, Jacob Clark, Dallas Foster, Matthew Li, Youssef Marzouk

International Meeting for Applied Geoscience and Energy (IMAGE)

... to update the posterior. Alternatively, complete seismic information can be assimilated in a full-waveform inversion framework. Therefore, in the second stage...

Improving Resolution and Clarity with Neural Networks; #41911 (2016)

Christopher P. Ross

Search and Discovery.com

... methodologies available to geoscientists. I will discuss and demonstrate results from a prestack inversion variety known as full waveform inversion (FWI...

Robust multichannel prestack AVA inversion based on elastic L1/2 norm

Nanying Lan

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 2020, Compound regularization of full-waveform inversion for imaging piecewise media: IEEE Transactions on Geoscience and Remote Sensing, 58, no. 2...

Handling noise in AEM inversion … implications for subsurface characterisation

Shane Mulè, Camilla Soerensen, Tim Munday

Petroleum Exploration Society of Australia (PESA)

... of quantifying and removing noisy data, including full waveform data analysis, automated algorithms and machine learning based approaches, have been...

Reviving an old Buffalo - Breathing new life into an old dataset with modern technology

R. McGee, H. Debenham, P. Hoiles, A. O'Neill, J. Miller, A. Padman

Petroleum Exploration Society of Australia (PESA)

... are becoming mainstream. One of these processes is full waveform inversion (FWI), which can more accurately decipher complex velocity variations...

Australian National Ocean Bottom Seismograph Fleet Advances Conventional Exploration

Alexey Goncharov, Michal Malinowski, Dejan Sekulic, Ashby Cooper, Peter Chia, Alexander Gavrilov, Garrick Paskos

Australian Petroleum Production & Exploration Association (APPEA) Journal

... of the crust and upper mantle from full-waveform inversion (FWI), due to their recording of longoffset transmitted phases (e.g. Operto et al. 2006). New OBS...

Abstract: Automatic Time Picking and Velocity Determination on Full-Waveform Sonic Logs; #90171 (2013)

Lejia Han, Joe Wong, John C. Bancroft, and Robert R. Stewart

Search and Discovery.com

...Abstract: Automatic Time Picking and Velocity Determination on Full-Waveform Sonic Logs; #90171 (2013) Lejia Han, Joe Wong, John C. Bancroft...

Capturing elusive subsalt 4D signals in Atlantis field with 4D elastic FWI imaging

Obi Egbue, Li Jiang, Chi Chen, Sabrina Strauss, Zedong Wu, Zhiyuan Wei

International Meeting for Applied Geoscience and Energy (IMAGE)

... images, with signals nowhere to be found against the noisy background. In recent years, full-waveform inversion (FWI) Imaging, especially elastic FWI...

High resolution imaging using multiples „ A North Sea case study

Chandan Kumar, Rodney Johnston, Petr Jilek, Xiaolei Song, Mikhail Davydenko

International Meeting for Applied Geoscience and Energy (IMAGE)

... and Verschuur, 2016). It tries to minimize the misfit between modelled and observed data in a least-squares sense. Unlike conventional full waveform inversion...

3-D Velocity Model of Hydrocarbon Ventsite in Cascadia Region Offshore Vancouver Island, by Mikhail M. Zykov and Ross Chapman; #90035 (2004)

Search and Discovery.com

From raw seismic data to quantitative interpretation via cloud-based FWI

Henry A. Debens

Australian Energy Producers Journal

... The Author(s) (or their employer(s)). Published by CSIRO Publishing on behalf of Australian Energy Producers Seismic full-waveform inversion (FWI...

Advances in seismic acquisition and processing technologies steered the success of exploration and development in Kuwait

Adel El-Emam

International Meeting for Applied Geoscience and Energy (IMAGE)

... developments in elastic Full Waveform Inversion for land data have also provided encouraging results in tests with field data from Kuwait (Leblanc et al...

Incorporating estimates of data covariance in elastic FWI to combat random and correlated noise

Luping Qu, Scott Keating, Kristopher A. Innanen, Xin Fu

International Meeting for Applied Geoscience and Energy (IMAGE)

.... INTRODUCTION Noise in full waveform inversion (FWI) applications refers to variations in the data which are either (1) not meaningfully predictable...

Eikonal equation-based adjoint-state characteristic reflection traveltime tomography: Method and application in real dataset

Jianming Zhang, Liangguo Dong, Jianhua Wang, Yilin Wang, Chao Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Petroleum Geologists REFERENCES Chi, B., L. Dong, and Y. Liu, 2015, Correlation-based reflection full-waveform inversion: Geophysics, 80, no. 4...

Subsalt Imaging: An Integrated Approach to Image Improvement of Vintage Data, #42076 (2017).

Evans Owah, Christian Rivera, Marjolaine Lahmi, Michel Courbe

Search and Discovery.com

... results. Keywords: acoustic, deghosting, full waveform inversion, subsalt, reverse time migration surface offset gathers, tomography Subsalt Imaging...

New technologies for seismic resolution enhancement and bandwidth expansion: Applications in SE Asian Basin

Yasir Bashir, Abdul Halim Abdul Latiff, Muhammad Sajid

Geological Society of Malaysia (GSM)

... introduces new technologies that address production enhancement techniques, including thin bed or thin reservoir, full waveform inversion, and diffraction...

Magnetotelluric inversion using supervised learning trained with random smooth geoelectric models

Lian Liu, Bo Yang, Yixian Xu, Dikun Yang

International Meeting for Applied Geoscience and Energy (IMAGE)

... increased as a function of the depth. Liu et al. (2021) implemented deep-learning seismic full-waveform inversion for realistic structural models using...

Seismic first arrival tomography for top salt velocity update: A case study in the Santos Basin, Brazil

Paulo H. B. Alves, Marco Cetale, Roger M. Moreira, Sérgio L. E. F. da Silva, Jorge Lopez

International Meeting for Applied Geoscience and Energy (IMAGE)

... such as full waveform inversion (He et al., 2022). Moreover, Santos et al. (2012) demonstrate the application of diffraction tomography, which helps...

Multi-conditional seismic velocity synthesis using an autoregressive transformer network

Randy Harsuko, Shijun Cheng, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... in a generative model. These stored velocity model distributions can be utilized to regularize inverse problems, like full waveform inversion. However, most...

Travel-time tomography for joint velocity and transducer location estimation

Edan Gofer, Raanan Dafni, Albert Shalumov, Ramon Axelrod, Moshe Oziel, Pinny Chaviv

International Meeting for Applied Geoscience and Energy (IMAGE)

.../elastic 3D model of a patient’s internal organs. The method uses Full Waveform Inversion (FWI) of measured data from transducers placed on a wearable...

Quantitative Interpretation in the Bedout Sub-basin: The value of seismic inversion in areas of sub-optimal seismic data quality

M. Kongawoin, A. Pauli, A. Locke, L. Hansen

Petroleum Exploration Society of Australia (PESA)

... SRME, and high-resolution Radon de-multiple. Velocity model building was improved with the introduction of Full Waveform Inversion (FWI) during PSDM17...

A feasibility study of Boree Salt body mapping in the Adavale Basin using passive seismic data

Peng Guo, Erdinc Saygin, Asrar Talukder

Australian Energy Producers Journal

.... Keywords: Adavale Basin, Boree Salt, elastic wave equation, full waveform inversion, hydrogen, passive seismic, subsurface imaging, surface wave...

Velocity estimation via model order reduction

Alexander V. Mamonov, Liliana Borcea, Josselin Garnier, Jrn Zimmerling

International Meeting for Applied Geoscience and Energy (IMAGE)

... Zimmerling, University of Michigan o SUMMARY THEORY A novel approach to full waveform inversion (FWI), based on a data driven reduced order model...