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The AAPG/Datapages Combined Publications Database
Showing 716 Results. Searched 200,357 documents.
Abstract: FWI Using Reflections in Shallow Waters Offshore Abu Dhabi; #91204 (2023)
Carlos Barajas, Olivier Hermant, Oleg Khakimov, Bastian Hutahayan, Guillaume Cambois, Mohamed Mahgoub, Olivier Kirstetter
Search and Discovery.com
... the velocity model using diving waves only, whilst for the second step we use both diving waves and reflected waves to reach the required depth...
2023
Abstract: Building Accurate Depth-Velocity Models in Shallow Water Marine Environment by Joint Reflection/Refraction Velocity Inversion; #90246 (2016)
Sergey Birdus
Search and Discovery.com
.... In this environment, refracted and diving waves can provide additional information for velocity modelling. This paper discusses how Refraction Tomography...
2016
ABSTRACT: Determining Reservoir Compartmentalization Using Differential Wide Aperture Seismic; #90061 (2006)
James H. Leven
Search and Discovery.com
... signals and their short transit time through the reservoir interval. The differential wide aperture seismic (DWAS) technique uses long offset diving waves...
2006
Time-Lapse Refraction Seismic I: A Complementary Monitoring Method?
Martin Landrø, Lasse Amundsen
GEO ExPro Magazine
... diving waves in a medium where the velocity increases linearly with depth. energy is sent back to the surface at the critical V0 = 2,000 m/s and two...
2017
ABSTRACT: Confirming Depth Models using Differential Wide Aperture Seismic; #90061 (2006)
James H. Leven
Search and Discovery.com
.... Conversely, the use of diving waves in the wide aperture seismic (WAS) technique provides excellent control on the sub-surface wavespeed, but lower...
2006
Abstract: OBN Interferometry for Velocity Model Building in a Challenging Salt Context from Barents Sea; #91204 (2023)
Guillaume Henin, Sujith Swaminadhan, Loic Janot, Sylvain Masclet
Search and Discovery.com
...-low frequency virtual shot gathers from the raw OBN continuous records. The obtained virtual gathers contain diving waves with useful frequencies down...
2023
Advanced Diving Systems: ABSTRACT
H. Dan Wilson
AAPG Bulletin
...Advanced Diving Systems: ABSTRACT H. Dan Wilson 1966 652 652 50 3. (March) (No submitted.) End_of_Article - Last_Page 652...
1966
Elastic FWI application to a land data set in the Middle East
Anna Sedova, Olivier Leblanc, Thibaut Allemand, Gilles Lambar, Stphane Pellerin, Daniela Donno
International Meeting for Applied Geoscience and Energy (IMAGE)
.... (2019) and Adwani et al. (2020) propose to jointly invert diving and surface waves (using a free-surface condition), emphasizing their complementary role...
2022
Bed Forms and Processes on Estuarine Tidal-Current Ridge, Willapa Bay, Washington: ABSTRACT
R. Lawrence Phillips
AAPG Bulletin
... is approximately 3 km long, arcuate in shape, asymmetric in profile, and rises a maximum of 13 m above the channel floor. Repeated high-resolution profiling, diving...
1979
Abstract: Sensitivity Analysis and Application of Time-lapse Full Waveform Inversion: Synthetic Testing, and Field Data Example for Monitoring An Underground Gas Blowout, The North Sea, Norway; #90254 (2016)
Hadi Balhareth, Martin Landro
Search and Discovery.com
... of the full waveform inversion (FWI) technique is paving the way for robustly incorporating head waves as well as diving waves into reservoir...
2016
-- no title --
user1
Search and Discovery.com
... the diving waves. Diving waves can dive to the required depth without being covered by a high amplitude noise. Therefore, using them in 4D spotlight...
Unknown
Elastic Multi-parameter FWI Imaging – a North West Shelf undeveloped gas field case study
Fabio Mancini
Southeast Asia Petroleum Exploration Society (SEAPEX)
... diving waves is a well-established tool in the model-building workflow for producing high-resolution subsurface velocity models. However...
2025
High-resolution near-surface land FWI across the Delaware basin fill zone
Terence Krishnasamy, James Sheng, Ronaldo Florendo, James Beck, Antonio Sierra, Sam Murphy, Jay Siebens, Yvonne Iwo-Brown
International Meeting for Applied Geoscience and Energy (IMAGE)
... effort acquisitions is prohibitive. In this case study we show how a multistage acoustic FWI approach utilizing different cost functions for diving waves...
2023
Depositional Complexities in Sea-Ice Environment of Arctic Shelves: Example from Harrison Bay, Alaska: ABSTRACT
Erk Reimnitz, P. W. Barnes
AAPG Bulletin
... winnowed or shaped into 1-m high sand waves by waves and currents. Yearly fathometer and sidescan sonar surveys, many diving observations, and numerous...
1981
Geological Diving: ABSTRACT
Robert F. Dill
AAPG Bulletin
...Geological Diving: ABSTRACT Robert F. Dill 1955 138 138 39 1. (January) Geological diving, one of the newest forms of offshore exploration, is being...
1955
Jumpstarting Hydrocarbon Exploration and Development in the Philippines
Rene Villafuerte, Jun Wang, Yitao Chen, Peter Chia
Southeast Asia Petroleum Exploration Society (SEAPEX)
... zones below. The absence of diving waves inhibits proper velocity modelling and depth imaging. An accurate velocity model and advanced migration approach...
2025
Exploration in the North Sea: Abstract
T. F. Gaskell
Tulsa Geological Society
... and falls in waves make diving operations almost impossible, and can raze the seabed from under stationary-type drilling rigs. Despite all the minuses...
1967
Abstract: When Surface Waves Become our Zoom-in Lensa Case Study from Western Desert Of Egypt; #91204 (2023)
Fatma Ibrahim
Search and Discovery.com
...Abstract: When Surface Waves Become our Zoom-in Lensa Case Study from Western Desert Of Egypt; #91204 (2023) Fatma Ibrahim When Surface Waves Become...
2023
Abstract: Recent Successes in FWI Deployment on Land-Data; #91204 (2023)
Moosa Al Jahdhami, Raya Al Kalbani, Ahmed Al Obeidi, Ahmed Al-Harthi
Search and Discovery.com
... that is faced when a sub-optimal starting model is used. The kinematic FWI inversion was run using diving waves with acoustic propagator...
2023
Improving subsalt images using reflection FWI on WAZ data: Examples from the Gulf of Mexico
Maksym Kryvohuz, Yihua Cai, Sebastian Ramirez, Robert Schelstrate, Gislain Madiba
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocity models in complex areas. Areas below salt require to retrieve kinematic information from the reflectivity field, because diving waves do not travel...
2022
Land FWI in the Sultanate of Oman: Challenges and advances on the road to high-resolution velocity
Mohammad Sheryar Farooqui, Yonghe Guo, Azza Al Hasni
International Meeting for Applied Geoscience and Energy (IMAGE)
... surface waves that overshadow much weaker diving and reflected waves. Strong elastic effects in the shallow geology makes the application of acoustic...
2024
A Robust Gradient for Long Wavelength FWI Updates
Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... in the gradient in heterogeneous media, and is able to deliver velocity updates beyond the penetration depth of diving waves. We use synthetic examples...
2016
Full waveform inversion of simultaneous long-offset data
Nizar Chemingui, Alejandro A. Valenciano, Andrew Long
Petroleum Exploration Society of Australia (PESA)
..., refractions, and diving waves). We combine an acquisition strategy that employs simultaneous shooting to record long offset data and a robust FWI...
2019
ABSTRACT: Velocity Modeling of the Near-Surface Structures by Diving-Wave Tomography, Diving-Wave Penetration Correction and Conventional Refraction Analyses, by Almalki, Hashim; El-Werr, Abdel-Khalek; #90141 (2012)
Search and Discovery.com
2012
Improving reservoir imaging using long-offset OBN data: A case study from Conger field, Gulf of Mexico
Bin Deng, Han Su, Bharat Bonala, Jiawei Mei, Jennifer Lewis, Estefania Ortiz, Wisley Martins
International Meeting for Applied Geoscience and Energy (IMAGE)
..., the diving waves diminish rapidly at reservoir level as we move away from the field center (Figure 3d). The lack of diving waves suggested limited updating...
2023