Practical solutions for reflection-driven FWI and application to Gulf of Mexico datasets

Max Liu, Ren-douard Plessix, Yi Yang, Jeffrey Vander Hurst, Na Shan, Rob Schelstrate, Colin Perkins, Vanessa Goh

International Meeting for Applied Geoscience and Energy (IMAGE)

...-to-noise ratio at low frequencies as well as the maximum offset available for FWI, hence increasing the penetration depth of diving waves. These are two...

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

... exploration, information carried by diving waves and post-critical reflections that are used to reconstruct the long-to-intermediate wavelength...

Abstract: Sub-Salt and Sub-Basalt Imaging Using Long Offset and Multicomponent Seismic Data, by J. Gaiser, N. Jones, and P. Fontana; #90923 (1999)

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user1

Search and Discovery.com

... and south Oman despite different challenges. Historically, various trials and tests were run to test diving waves-based inversions and reflection waves...

Tackling data challenges in land FWI: A case study

Victor Lopez, Yun Dong Guo, QingYang Li, Bin Yu, Changhua Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... and frequency ranges, but conventional FWI using diving waves mostly resulted in minor updates in the shallow regions where the velocity is relatively simple...

Diving Services for the Oil Industry*

Fergus Healy

Southeast Asia Petroleum Exploration Society (SEAPEX)

...Diving Services for the Oil Industry* Fergus Healy 1974 114 118 In 1973, prior to the year-end oil crisis, the French Petroleum Institute produced...

Key Technologies for Processing of Seismic Data in Gas Cloud Area, Bohai Bay Basin, #42093 (2017).

Xia Tongxing, Ming Jun, Liu Lei, Zhou Xuefeng, Liu Hongxing, Liu Xuetong

Search and Discovery.com

... methods to attenuate different kinds of multiples. First, single streamer deghosting is applied to attenuate ghost waves and enhance low frequency energy...

Reducing mapping ambiguity via visco-acoustic multi-azimuth dynamic resolution time-lag full-waveform inversion in offshore Senegal

Kai Zhao, Hui Zhang, Jianfeng Yao, Robert Eliott-Lockhart, Jacob Low

International Meeting for Applied Geoscience and Energy (IMAGE)

... term from reflections in the FWI gradient by a dynamic weighting, attempting to exploit the benefit of both diving waves and reflected waves. Fourth...

Visco-Acoustic Full-Waveform Inversion: A Case Study to Resolve High-Resolution Shallow Channel Absorption, Offshore Indonesia

Jun Wang, Yonghe Guo, Putri Supriandini, Kelik Moersidin, Rahmad Hidayat

Indonesian Petroleum Association

... FWI approach using diving waves for joint estimation of velocity and Q models (Wang et al., 2018). Based on the relationship between stress and strain...

Improving subsalt images using FWI and FWI imaging: A streamer case study at Big Foot

Weihong Fei, Jingru Chen, Min Yang, Leah Grassi, Erik Everson, Paul Bovet, Marin Laomana, Sheree Wold, Alex Yanjun Hao, Chi Chen, Shubin Zeng, Zhiyuan Wei

International Meeting for Applied Geoscience and Energy (IMAGE)

... and WAZ data. FAZ data shows deeper diving wave penetration than the WAZ data. Neither of the datasets has diving waves that reach the target depth level...

Diving Deeper to Reveal Hydrocarbon Potential in the Barents Sea

Sören Naumann, Rune Sakariassen, PGS

GEO ExPro Magazine

... were extended from 7 km to 10 km length, allowing the recording of deeper diving waves (refractions) and thereby enabling FWI to produce velocity...

Abstract: Improving Reservoir Imaging with Time-Lag Fwi in the Partitioned Zone Between Kuwait and Saudi Arabia; #91204 (2023)

Art Petrenko, Trevor Coulman, Guangfu Shao, Ibrahim Hakam, Mohammed Almutairi, Sujoy Ghose, Kai Zhang

Search and Discovery.com

..., at the limit of the reach of diving waves (Figure 3). In particular, we examine the Limestone C formation, a thin layer of carbonate sandwiched...

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... The seismic data used in this study was acquired in 2010 with four streamers of 6 km length. Ray-based modelling of the diving waves indicated an expected...

Diving Geology: ABSTRACT

J. A. Forman

AAPG Bulletin

...Diving Geology: ABSTRACT J. A. Forman 1966 647 647 50 3. (March) A remarkably large amount of "surface geology" has been done in the California...

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)

.... FWI can as well incorporate reflections, which allow velocity estimation beyond the penetration depth of diving waves. For this to be feasible...

Extended Abstract: Clean, Renewable Energy: Under the Sea?

PESA Staff

Petroleum Exploration Society of Australia (PESA)

... chairman of Hardman Resources. He said his inspiration for th e concept came from his experience of diving, being tossed about by the waves off the WA...

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)

... as an initial model for FWI at 6 Hz. FWI was then run up to 12 Hz utilising the transmitted waves (refracted and diving waves). An upper bound of 12 Hz...

Abstract: Bed Forms and Internal Structures in Deep Estuary Channel System, Willapa Bay, Washington, by R. L. Phillips, H. E. Clifton, R. J. Anima; #90972 (1976).

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ABSTRACT: Geomorphology and Spatial Patterns of Sedimentation on a Modern Mix Depositional System, NE Brazil, by Vital, Helenice; Campos Soares, Camila H.; Beserra, Diego D.; Silva, João Paulo F.; Gomes, Moab P.; Pierri, Guilherme S C.; Nogueira, Mary Lucia S.; #90142 (2012)

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Key Technologies for Processing of Seismic Data in Gas Cloud Area

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Full Waveform Inversion for Complex Near-Surface Imaging Using SEG SEAM II Synthetic Model; #42322 (2018)

Ali A. Mohamed, Abdullatif A. Al-Shuhail

Search and Discovery.com

... and attenuation problems, in addition to strong scattering of surface and body waves that interfere with the imaging of deeper structure...

Resolving complex velocity and gas absorption features with full-waveform inversion in the Taranaki Basin, New Zealand

Yuelian Gong, Dominic Fell, Robert Hunn, Richard Bisley, Alexander Karvelas, Bee Jik Lim

Petroleum Exploration Society of Australia (PESA)

... full-waveform inversion (Q-FWI), driven by diving-waves, is used to estimate the Q model for the shallow gas clouds (Cheng et al., 2015). The final...

Nearshore Bedform Patterns Along Rhode Island from Side-Scan Sonar Surveys

Andrew Morang , Robert L. McMaster

Journal of Sedimentary Research (SEPM)

..., megaripples, and sand waves. Fields of low amplitude sand waves, 10-15 m in wave length, were discovered lying parallel to the shoreline at depths...

Velocity model building for pressure and converted wave imaging using surface-DAS data: A North Sea case study

M. ElAttar, H. Malak, A. Cooke, O. Lewis, C. Thorgersen

International Meeting for Applied Geoscience and Energy (IMAGE)

... building workflow on 2D S-DAS data (using an active source acquisition) from the North Sea, utilizing both fullwaveform inversion (FWI) for the diving...

Land seismic multi-parameter FWI imaging

Mason Phillips, James McLeman, Vlada Avramovic, Tom Rayment, Stuart Schmitt, Mike Varner, Yasser Khalifeh, Ahmad Ammar Chahine, Eskil Jersing

International Meeting for Applied Geoscience and Energy (IMAGE)

... contaminated with cultural noise, air waves, surface waves, guided waves, a wide variety of multiples, and complex distortions of each of these modes...