Full-waveform inversion and FWI imaging for land data

James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

... on conventional migrations. offsets of 8209 m which imposes limitations to the penetration of diving waves in most areas. The noise in the data also limits...

EXTENDED ABSTRACT: Basalt Imaging on the NE Atlantic Margin: seeing through a glass, darkly; #90022 (2002)

Robert S. White

Search and Discovery.com

... conventionally been the norm, considerable extra information is gained from the diving waves (refractions) which are returned from the substructure, and also...

Optimizing seismic survey design for frontier exploration in Cyprus salt basins

Chris Tapie, Valeriy Brytik, Shangli Ou, Lindsey Donaldson, Ares Ouzounis, Ivan Fabuel-Perez, Maxime Guillois, Daniel Eke, Sunwoong Lee, Mahir Khalil, Gita Febriany, Luigi Pastore

International Meeting for Applied Geoscience and Energy (IMAGE)

... was on the offset needed for Full Waveform Inversion (FWI) in the salt environment. It has been shown that low frequency diving waves that penetrate through...

Underwater Geology and Analysis of Recent Sediments Off the Northwest Florida Coast

J. E. Vause

Journal of Sedimentary Research (SEPM)

...Underwater Geology and Analysis of Recent Sediments Off the Northwest Florida Coast J. E. Vause 1959 Vol. 29 No. 4. (December), Diving geologists...

Sand Waves on Browns Bank observed from the Shelf Diver

Georges Drapeau

Atlantic Geology

... the two surveys. Stewart and Jordan observed tidal overfalls over shallow sand waves whose crests were 3.7 metres below the sea surface. Diving...

Elastic FWI imaging of a complex presalt structure using NATS data

Arthur Henrique, Luiz Felão, Sergio Barragan, Florian Jouno

International Meeting for Applied Geoscience and Energy (IMAGE)

... the full wavefield (primary reflections, surface and interbed multiples, refractions, and diving waves). FWI also uses a multi-scale inversion, matching...

Multiparameter FWI imaging in the Gulf of Mexico

Tom Rayment, Karen Dancer, James McLeman, James Penwarden, Tim Ooi, Monica Hartmann

International Meeting for Applied Geoscience and Energy (IMAGE)

... and imaging workflows. Introduction Model-building with FWI (Tarantola, 1987) applied to diving waves (diving wave FWI) is now a well-established tool...

Envelope full-waveform inversion of marine seismic data

Kai Xiong, David Lumley, Wei Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... is only approximate for body wave reflections, and is even less accurate for other wave types such as head waves, diving waves, and multiples). Considering...

Moving Offshore in the Gulf of Mexico: People, Technology, and the Organization of Work in the Early Years of Oilfield Diving

Diane E. Austin

Petroleum History Institute

...Moving Offshore in the Gulf of Mexico: People, Technology, and the Organization of Work in the Early Years of Oilfield Diving Diane E. Austin Oil...

Incorporating refraction time-shifts into geophysical monitoring systems for monitoring shallow CO2 accumulations

Martyn Steel, Sjoerd A.L. De Ridder, Mike Branston, James Butt, Gabrielle Busanello

International Meeting for Applied Geoscience and Energy (IMAGE)

... monitoring, with the work focussing on a gas blow out in the North Sea. The work is further expanded to incorporate diving waves into shallow gas estimation...

ROV Tool Innovation for Underwater Valve Plug Removal

Prima Tirto Kusumo, Pradintio Ariadi, Herrisman

Indonesian Petroleum Association

... divers to remove the plug, but this will lead to huge cost since water depth more than 50 m will require a specialized form of diving known...

Underwater Mapping by Diving Geologists

H. W. Menard , R. F. Dill , E. L. Hamilton , D. G. Moore , Geo. Shumway , M. Silverman , H. B. Stewart

AAPG Bulletin

...Underwater Mapping by Diving Geologists H. W. Menard , R. F. Dill , E. L. Hamilton , D. G. Moore , Geo. Shumway , M. Silverman , H. B. Stewart 1954...

Resolving geological complexity with legacy streamer survey: Potiguar 3D offshore Brazil case study

Seet Li Yong, Milos Cvetkovic, Terry Johnson, Boedi Soelistijo, Leon Ge

International Meeting for Applied Geoscience and Energy (IMAGE)

... but most of the area lies in water depth of 2000m or more. With maximum offsets of 8km, the survey suffers from a lack of diving waves which...

Unraveling US GoM North Green Canyon subsalt complexities with sparse nodes

Katarina Jonke, Jingqian Kang, Sandra Garzon, Gino Alexander, Ganyuan Xia, Gabriel Ritter, Ahmed Afifi

International Meeting for Applied Geoscience and Energy (IMAGE)

... applicable (Dellinger et al., 2017). A breakthrough in automated salt model building came from FWI algorithms that effectively utilized diving waves...

ABSTRACT: Seismic, Side-Scan Survey, Diving, and Coring Data Analyzed by a Macintosh II

Search and Discovery.com

Sub-L1 norm regularized inversion deblending in local 3D FK domain for ocean-bottom node data

Jun Sun, Zhaojun Liu, Manhong Guo, Graeme Stock, Bin Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and high fidelity preservation on direct arrivals and diving waves. It demands an efficient, highly accurate and stable algorithm. In this abstract...

Unlocking subsurface complexity: Sparse ocean-bottom node and full-waveform inversion for northern Green Canyon, Gulf of Mexico

Kate Glaccum, Denes Vigh, Yao Yu, Eray Kocel, Bing Bai, Di Chen, Hongyan Li, Kevin Lyons

International Meeting for Applied Geoscience and Energy (IMAGE)

... adaptable as a model building tool. Many field successes using diving waves are complemented by kinematic updates using also reflections, expanding...

Latest imaging advancements in Suriname shallow waters

Jing Yang, Zhihua Sun, Zhihua Su, Bei Hu, Nicolas Chazalnoel

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the target layers underneath. By utilizing multiples and diving waves, highfrequency FWI Imaging can provide a superior image in the shallow section, where...

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)

...-to-P-wave transmitted energy (diving waves) is a function of only Vp and ρ (equation 5.46, Aki and Richards, 2002); we anticipated more elastic...

Time-lapse matching of OBN seismic data using 2D convolutional neural networks

Ramon C. F. Araújo, Gilberto Corso, Samuel Xavier-de-Souza, João M. de Araújo, Tiago Barros

International Meeting for Applied Geoscience and Energy (IMAGE)

... receiver gathers. The first step is to preprocess baseline and monitor data by muting the direct arrival and diving waves. The reason is that those...

Abstract: Feasibility Testing of Time-lapse Seismic Monitoring with Full Waveform Tomography; #90171 (2013)

Chad Hogan, Ken Hedlin, Gary Margrave, and Michael Lamoureux

Search and Discovery.com

.... The waveform tomography process requires a sufficiently accurate starting model, typically constrained by requiring that modelled diving waves...

Next-generation resolution through multiparameter FWI imaging

Tom Rayment, James McLeman, Karen Dancer, Tim Burgess

International Meeting for Applied Geoscience and Energy (IMAGE)

... the simultaneous FWI imaging technique. Introduction The use of diving waves in FWI has become an industry-standard practice in model-building workflows...

Designing surveys in an updated regulatory environment With consideration of processing

Carsten Udengaard, David Brookes, Simon Dean, Seet Li Yong, Henrik Roende, Duncan Bate, Etienne Marc

International Meeting for Applied Geoscience and Energy (IMAGE)

... shows a time slice through a modelled node location before and after regularization of the source grid. In Figures 1e and 1f, diving waves, reflected...

Oscillatory Ripple Marks and the Evaluation of Ancient Wave Conditions and Environments

Paul D. Komar

Journal of Sedimentary Research (SEPM)

... of the ancient environment. This paper reviews the relationship between the wave action and the ripples produced. In shallow water with waves of low period...

Near-Shore Studies in Sedimentology and Morphology Along the Florida Panhandle Coast

William F. Tanner

Journal of Sedimentary Research (SEPM)

... of the Florida panhandle. These studies have extended as far as 10 miles seaward, where diving techniques were employed, and about an equal distance...