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Showing 2,329 Results. Searched 200,636 documents.
FWI for the complex Walker Ridge salt province using streamer data
Dorothy Ren, Xin He, Siyun Xu, Fei Gao, Feng Lin, Jiawei Mei
International Meeting for Applied Geoscience and Energy (IMAGE)
... and (f) RTM image. model errors are large and TLFWI’s update power from the tomography term of reflection energy is limited. With a closer input model...
2022
An application of FWI with progressive transfer learning
Shirui Wang, Jinjun Liu, Yuchen Jin, Xuqing Wu, Jiefu Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
..., Theory and observations — Seismic tomography and inverse methods: Treatise on Geophysics, 1, doi: https://doi .org/10.1016/b978-044452748-6.00009-2. Vigh...
2022
Mitigating cycle skipping in FWI through preconditioned multidimensional optimal transport
James McLeman, Tim Burgess, Tom Rayment, Victor Chua
International Meeting for Applied Geoscience and Energy (IMAGE)
... workflows or having to start with a velocity derived from an RMO tomography update. For all results shown, 10 FWI iterations were used. In the KR FWI case...
2022
Interferometry derived S-wave velocity model with geological constrains for induced seismicity monitoring
Galina Simeonova, Dmitry Alexandrov, Toufik Chtouki, Petr Kolnsk, Leo Eisner, Tijmen Jan Moser, Umair Waheed, Sherif Hanafy, Barbara Cox
International Meeting for Applied Geoscience and Energy (IMAGE)
..., we modify the methodology applied to the Groningen gas field where a dense seismic monitoring network was used for S-wave tomography (Chmiel et al...
2022
Examining the significance of the converted-modes beneath an ultra-high-velocity caprock: Physical modeling and a Gulf of Mexico salt proximity VSP survey
Jingjing Zong, Yukai Wo, Jizhong Yang, Nikolay Dyaur
International Meeting for Applied Geoscience and Energy (IMAGE)
... earlier with the geophones covering the entire depth range to obtain a 1-D velocity profile. Wo et al. (2021) apply a layer tomography approach...
2022
ABSTRACT: Cenozoic South American Tectonic Interaction A case for Prism prism Collision in Venezuela, Trinidad and Barbados Ridge
James Pindell and Lorcan Kennan
Geological Society of Trinidad & Tobago
... expression within or at the margins of the Proto-Caribbean Seaway. (2) Mantle seismic tomography beneath the Caribbean and northern South America (Van...
2007
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)
... by FWI and is alternated by interpretationbased scenarios and ray-based tomography. First, one round of FWI was performed on smoothed legacy model...
2022
RNN-based seismic velocity model building: Improving generalization using hybrid training data
Hani Alzahrani, Jeffrey Shragge
International Meeting for Applied Geoscience and Energy (IMAGE)
.../10.1190/geo2020-0547.1. Araya-Polo, M., J. Jennings, A. Adler, and T. Dahlke, 2018, Deep-learning tomography: The Leading Edge, 37, 58–66, doi: https...
2022
Efficient physics-informed Bayesian inversion of VSP and hydrofrac data
Tian Qiao, George Turkiyah, Gerard T. Schuster
International Meeting for Applied Geoscience and Energy (IMAGE)
... computed using a traveltime tomography procedure, for the passive data we used a migration method. The posterior functions can then be computed...
2022
Reducing seismic quantitative interpretation uncertainty in complex geological environments: A case study from offshore Australia
Andrea Paxton, Lianping Zhang, Abdul Kholiq, Lee Davey, Richard Bisley, Dominic Fell, Leo Leon, James Shadlow
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocity model across the large survey area produced by a proprietary workflow combining FWI and common-image point (CIP) Tomography updates (Woodward...
2022
Application of full-waveform inversion to ultra-high-density OBN data at Clair field
Simon Luo, Xukai Shen, Philip Tillotson, Lindsey Smith, Dan Davies
International Meeting for Applied Geoscience and Energy (IMAGE)
... model for FWI, we used a legacy TTI model built from the same UHDOBN data using TTI tomography. The initial model, shown in Figure 4(a), is reasonably...
2022
High-resolution FWI of converted-wave data A case study from the Edvard Grieg field
Per Eivind Dhelie, Vidar Danielsen, Jon Andre Haugen, Emilie Davenne, Knut Richard Straith, Alireza Roodaki, Manuel Peiro, Alexis Fotsoh, Wenlei Gao, Nabil Masmoudi, Andrew Ratcliffe
International Meeting for Applied Geoscience and Energy (IMAGE)
... previously relied on tomography combined with joint PP-PS event registration, but these only update for the low-wavenumber background model. To move beyond...
2022
High resolution petrophysical and geomechanical characterization for subsurface stress prediction in the Permian Basin
Emmanuel Oyewole, Brian Crawford
International Meeting for Applied Geoscience and Energy (IMAGE)
... of Exploration Geophysicists and the American Association of Petroleum Geologists High resolution subsurface stress prediction tomography (DECT...
2022
A New Permeability Prediction Workflow Using 3D Porous Media Reconstruction Method, Case Studies: Malay Basin Thin Sections
Luluan A. Lubis, Zuhar Zahir T. Harith, Khairul Arifin M. Noh, Hilfan Khairy
Indonesian Petroleum Association
...-resolution X-ray tomography, also known as CT-scanning. CTscan produces multiple closely spaced 2D slice images of a rock that, when stacked together...
2012
Towards more accurate reservoir imaging using FWI: An OBN case study at Trion
Zhen Wang, Sen Mei, Zhuocheng Yang, Joakim Blanch, Ezequiel Genova, Juan-Mauricio Florez-Nino, Humberto Salazar-Soto, Alfredo Vazquez-Cantu
International Meeting for Applied Geoscience and Energy (IMAGE)
... were derived from azimuthally sectored TTI models generated from ray-based reflection tomography in the respective individual azimuths using two WAZ data...
2022
High-resolution seismic imaging of shallow karstified carbonate overburden offshore Indonesia
Xiaobo Li, Yonghe Guo, Yi Xie, Barry Hung, Ilham Panggeleng, M. R. Husni Sahidu, Sarah Putri
International Meeting for Applied Geoscience and Energy (IMAGE)
...., 2020), which may correspond to cave structures, as indicated by the blue arrow in Figure 1b. It is challenging for conventional tomography...
2022
Santos Vision: Innovative Seismic Data Processing in a Super Giant Oil Basin
Hermann Lebit, Sriram Arasanipalai, Jeff Tilton, Pascal Ollagnon, PGS
GEO ExPro Magazine
...-salt sediment velocity model building process utilized a combination of data-driven traditional tomography fault patterns and sedimentary geometries...
2019
Pie in the Sky?
Ed Hagar
GEO ExPro Magazine
... the background traffic noise is like the modeling to begin sooner, whether it be manual, tomography sound exposure level. However, like safety, reducing...
2019
Comparative analysis between laboratory measurement and numerical simulation to evaluate anisotropy in Coquinas from Morro do Chaves Formation: A Brazilian presalt analog
Lucas Oliveira, Andr Martins, Marco Ceia, Roseane Missgia, Herson Rocha, Natan Santarm, Jessica Moreira, Irineu Lima Neto
International Meeting for Applied Geoscience and Energy (IMAGE)
... visualization and compute effective properties on these large 3D microcomputed tomography (μCT) images. Furthermore, using highly innovative, very fast...
2022
High-resolution imaging using Gaussian beam point-spread-function deconvolution
Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan
International Meeting for Applied Geoscience and Energy (IMAGE)
... muting. The frequency band used for migration ranges from 0 to 35 Hz. The migration velocity model (Figure 2) is built using ray-based tomography. 121...
2023
Enhancing geoscientific understanding through autonomous monitoring of hydrological and biogeochemical processes with timelapse electrical resistivity
Roelof Versteeg, Doug Johnson, Greg Partridge, Rebecca L. Rubinstein, Tyler Turner, Sean Kacur, Reza Soltanian, Mike van der Werf, Marco de Kleine, Sarah Garre, Guillaume Blanchy, Doug LaBrecque
International Meeting for Applied Geoscience and Energy (IMAGE)
..., Electrical resistivity tomography of Vadose water movement: Water Resources Research, 28, 1429–1442, doi: https://doi.org/10.1029/91WR03087. Doherty, J., 2015...
2023
Can Sparse OBN Equal Savings and Data Quality?
Yannick Cobo, Rodrigo Felicio, Carlos Calderon, Paul Farmer, ION
GEO ExPro Magazine
... mostly from FWI from diving waves and wide angle reflections in the data, tomography iterations interleaved with subsequent iterations of FWI...
2021
Quantitative Interpretation Reveals Prospectivity of the Kwanza Shelf, Offshore Angola
Roberto Ruiz, Cyrille Reiser, Avril Burrell, PGS, Jean Afonso Colsoul, Naire Judith Ricardo Cahumba Quenge, ANPG
GEO ExPro Magazine
... geometries associated with the salt. For this, tomography (reflection and refraction) and Full Waveform Inversion (FWI) have been used to unveil...
2021
North Sea Core: An Undervalued Asset
K. A. Wright, H. Kombrink
GEO ExPro Magazine
... tomography (CT) scans. In exchange for the provision of material, we gain access to the results and are in the process of assembling datasets...
2021
Geophysical Techniques in the Study of Hydrocarbon-Contaminated Soil
Umar Hamzah, Mohd Azmi Ismail, Abdul Rahim Samsudin
Geological Society of Malaysia (GSM)
... ground penetrating radar (GPR), electrical resistivity tomography (ERT) and vertical resistivity probe (VRP) were used in mapping subsurface geological...
2008