Gemini: A fully operational broadband source for model building and imaging

Carsten Udengaard, David Brookes, Hector Flores

International Meeting for Applied Geoscience and Energy (IMAGE)

... surveys utilizing Full Waveform Inversion for high quality velocity models it will be beneficial to generate additional low frequency energy beyond...

Seismic Foldout: Côte Dlvoire … The new West African exploration hotspot

Madhurima Bhattacharya, Misha Isakov, Paolo Gabrielli, Carl Watkins, Dan Carruthers, VIRIDIEN

GEO ExPro Magazine

... wavefield elimination (GWE), advanced demultiple, and time-lag full waveform inversion (TL-FWI) velocity model building. The fast-track 3D volume...

Seismic Foldout: Geological understanding based on new data is required to unlock potential in the Vøring Basin

Jens Benfeeldt, Reidun Myklebust, TGS

GEO ExPro Magazine

... broadband data using a widetow triple source configuration and two long tails for FWI (full-waveform inversion) processing. This new dataset...

New insights into the Exmouth Sub-basin: Seismic acquisition, processing and imaging

Alexander Karvelas, Bee Jik Lim, Lianping Zhang, Haryo Trihutomo, Oliver Schenk, Sugandha Tewari

Petroleum Exploration Society of Australia (PESA)

... building consisted of two major stages: firstly, using full waveform inversion (FWI) to derive the nearsurface velocity field, and secondly, common image...

Imaging of multiwell and multifiber walkaway DAS-VSP datasets in a CCUS demonstration project onshore Japan

Yuji Yamada, Shotaro Nakayama, Takuji Mouri, Manish Lal Khaitan, Philip Armstrong, Olga Podgornova

International Meeting for Applied Geoscience and Energy (IMAGE)

... with reliable confidence levels. The recorded datasets were also fed into elastic full waveform inversion (eFWI) to extract detailed subsurface...

Data selection for velocity model estimation using a circular shot OBN survey

Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe Capuzzo, Roger M. Moreira, Jorge Lopez, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

... construction and eikonal equation in automatic pre-stack data selection can improve the velocity model estimation in full waveform inversion (FWI...

Lithology characterisation of the roof and floor of the Moranbah measures coal seam using post-stack and pre-stack seismic inversion

Margarita Pavlova

Petroleum Exploration Society of Australia (PESA)

...Lithology characterisation of the roof and floor of the Moranbah measures coal seam using post-stack and pre-stack seismic inversion Margarita...

Use of Automatic Moment Tensor Inversion in Real Time Microseismic Imaging

Michael Kratz, Michael Thornton

Unconventional Resources Technology Conference (URTEC)

..., classifying them into discrete mechanism groups. Automatic picking utilizes a form of full waveform inversion to calculate moment tensors for every...

Full phase-velocity spectrum inversion of multimode Rayleigh waves

Yanlong Niu, Yunyue Elita Li, Siau Chen Chian

International Meeting for Applied Geoscience and Energy (IMAGE)

... application, such as full waveform inversion (Yang et al., 2018). This motivates us to take a different views on the dispersion spectra comparison. Finite...

Acoustic waveform inversion with the Lippmann-Schwinger equation constraint

Rahul Sarkar, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... the inversion method is presented. INTRODUCTION Full waveform inversion in the frequency domain was pioneered by Pratt (1999), and since then a lot...

Can Sparse OBN Equal Savings and Data Quality?

Yannick Cobo, Rodrigo Felicio, Carlos Calderon, Paul Farmer, ION

GEO ExPro Magazine

... full-waveform inversion (FWI) for the estimation of velocities, with the exact same inversion parameters for each scenario. Thus, each scenario...

Imaging the presalt with elastic FWI using OBN data

Gabriel Brando, Benjamin Huard, Luis Cypriano

International Meeting for Applied Geoscience and Energy (IMAGE)

... successfully combined with the latest full-waveform inversion (FWI) technologies, such as Timelag FWI, to obtain accurate and geologically consistent earth...

Joint inversion of magnetotelluric and seismic travel time data with intelligent interpretation of geophysical models

Hongyu Zhou, Rui Guo, Maokun Li, Fan Yang, Shengheng Xu, Zuzhi Hu, Deqiang Tao

International Meeting for Applied Geoscience and Energy (IMAGE)

... saturations from joint electromagnetic and elastic full-waveform data: 81st Annual International Meeting, SEG, Expanded Abstracts, 660–665, doi: https...

Time-Lapse Monitoring of CO2 Sequestration: 1D Visco-elastic Waveform Inversion Applied to Distributed Acoustic Sensing-Acquired Zero offset Vertical Seismic Profile … a Feasibility Study

Yu Chen, Takashi Mizuno, Joël Le Calvez

Carbon Capture, Utilization and Storage (CCUS)

..., S. Glubokovskikh, V. Puzyrev, K. Tertyshnikov, and B. Gurevich, 2017. Timelapse full waveform inversion of vertical seismic profile data: Workflow...

Abstract: How much well do you need in Acoustic Impedance Inversion?; #90174 (2014)

Heather J. E. Lloyd and Gary F. Margrave

Search and Discovery.com

... contacts. While there are more sophisticated methods of computing inversions (such as full waveform inversion) the quickest and simplest way is to compute...

One more stride forward in Thunder Horse subsalt imaging with elastic FWI

Bunmi Elebiju, Qingsong Li, Ken Hartman, Francis Rollins, Ye Feng, Karl Kaiser, Werner Schinagl, Chi Chen, Alex Yanjun Hao, Zhiyuan Wei, Jiawei Mei

International Meeting for Applied Geoscience and Energy (IMAGE)

... recently, the application of Time-lag Full-waveform Inversion (TLFWI) using this OBN data has resulted in substantial improvements in velocity over...

GeoStreamer X Delivers Near-Field Multi-Azimuth Dataset for Accurate Lead Characterisation, South Viking Graben, Norway

Cyrille Reiser, Eric Mueller, PGS

GEO ExPro Magazine

... streamers for improved Full Waveform Inversion (FWI), and a wide-towed triple source configuration (225m separation between the outer source arrays...

Abstract: The Gulf of Papua: Challenging industry perspectives of prospectivity with evolving geophysical technology

Lauren Found, Simon Crellin, Helen Debenham

Southeast Asia Petroleum Exploration Society (SEAPEX)

... and Full Waveform Inversion (FWI). This survey has provided the greatest insights into regional architecture and hydrocarbon potential to date, facilitating...

Abstract: High Impact Data Creates High Impact Opportunities

Peter Baillie

Petroleum Exploration Society of Australia (PESA)

... application of several technologies. Technologies used include broadband processing, Full Waveform Inversion (FWI) and least squares Q PSDM (LSQPSDM). Prospects...

Combining science with models and calibration data to provide PP-FG solutions for industry

Search and Discovery.com

Joint Interpretation of geophysical field experiments in the Danube deep sea fan, Black Sea

Search and Discovery.com

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...