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Showing 20,860 Results. Searched 200,693 documents.
Elastic full-waveform inversion using random space shift
Yuhui Yao, Jizhong Yang, Yuzhu Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... than AFWI due to the slow S-wave velocity which requires a more accurate initial model than Pwave velocity, together with the existence of tradeoff...
2022
Shallow shear wave velocity estimation through the ground stiffness and viscosity
Zhouhong Wei, Rong Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
...Shallow shear wave velocity estimation through the ground stiffness and viscosity Zhouhong Wei, Rong Wang Shallow shear wave velocity estimation...
2024
Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014)
Jianhua Pan
Search and Discovery.com
...Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014) Jianhua Pan AAPG Search and Discovery...
2014
Abstract: Duplex Wave Migration Imaging Vertical Boundaries; #90211 (2015)
Brian Link and Naum Marmalevsky
Search and Discovery.com
... methodology will only be recorded if the velocity depth model is characterized by significant vertical velocity heterogeneity. Duplex Wave Migration...
2015
Log Resistivity Measuring Devices Compared to S-waves from a Vertical-Force Source VSV / VSH Ratio in Identification of Fracture Sweet Spots in Densely Fractured Reservoirs
John M. Robinson, Bob Van Nieuwenhuise
GCAGS Transactions
..., positive source S-wave velocity in the common midpoint (CMP) domain and the P–SV velocity in the common conversion point (CCP) domain utilizing Vp/Vs...
2014
2013
Log Resistivity Measuring Devices Compared to S-waves from a Vertical-Force Source, #41377 (2014)
John M. Robinson
Search and Discovery.com
... wavefield has a faster deeper velocity (VTI media Levin, 1979, 1980). In addition, both shear velocities are significantly less than the P-wave...
2014
Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data
Search and Discovery.com
... of refracted / diving wave methods in the foothills: shallow, high-velocity contrasts inhibit the early arrival energy from propagating to target depths...
2013
Abstract: Navigating through the Red Sea Subsalt Structures: A Look-Ahead VSP Case Study from Saudi Arabia; #90319 (2018)
Ali A. Aldawood, Carlos Planchart
Search and Discovery.com
.... Then, the upgoing P-wave reflections were separated from the recorded total wavefield using model-based separation techniques. An initial two-layer velocity model...
2018
Granite and Limestone Velocity Determinations in Arbuckle Mountains, Oklahoma
B. B. Weatherby, W. T. Born, R. L. Harding
AAPG Bulletin
... within observational errors and yield a value of 17,950 ft./sec. for the longitudinal wave velocity. The data taken over the shorter span show...
1934
Pressure prediction using converted shear waves from OBN data: A rock physics approach
Prajnajyoti Mazumdar, Kevin Searles, Bjorn Olofsson, James Gaiser, Terence Krishnasami
International Meeting for Applied Geoscience and Energy (IMAGE)
... such as in shallow sedimentary sections. Introduction Pore pressure prediction in industry generally uses P-wave velocity-based prediction methods...
2023
Simultaneous Inversion for Microseismic Event Location and Velocity Model in Vaca Muerta Formation
Zhishuai Zhang, Jing Du, Fuchun Gao
Unconventional Resources Technology Conference (URTEC)
... the parameterization error, however, may lead to an ill-posed problem. The velocity model parameter set we use in this study is comprised of P- and S-wave...
2017
Broadband Seismic Technology and Beyond: Part III: The Interaction between Ocean Waves and Recorded Seismic Data
Lasse Amundsen, Martin Landrø
GEO ExPro Magazine
... by a sine wave, analytical equations enable us to calculate the horizontal (u) and vertical (v) particle velocity and the pressure (p) as a function...
2013
Depth Imaging Seismic Data to Help Delineate Gas Reservoirs in Southwest Wyoming
Alvin K. Benson
Wyoming Geological Association
..., velocity, etc. Thus, the acoustic wave equation can be used to determine the wave field at any depth z from surface data through a process known...
1989
ABSTRACT: Compaction, Stresses, and Velocity in High Overpressure, by Ebrom, Daniel, Philip D. Heppard, Michael Tompkins, Leon Thomsen; #90026 (2004)
Search and Discovery.com
2004
Automated Early-Arrival Travel Time Tomography Using Full-Azimuth, Long-Offset Dual Coil Data in U.S. Deepwater Gulf of Mexico
Search and Discovery.com
N/A
Abstract: Applying of high-technology algorithms for high-quality seismic and velocity products: Nile Delta, offshore Egypt; #90254 (2016)
Mahmoud M. Abu Shabana, Abdallah Ibrahim
Search and Discovery.com
...Abstract: Applying of high-technology algorithms for high-quality seismic and velocity products: Nile Delta, offshore Egypt; #90254 (2016) Mahmoud M...
2016
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
...Abstract: OBN Interferometry for Velocity Model Building in a Challenging Salt Context from Barents Sea; #91204 (2023) Guillaume Henin, Sujith...
2023
A case study using FWI to image pre-Messinian target in the East Mediterranean Sea
Jyoti Kumar, Marcus Bell, Tamer Darwish, Mai Ahmed, Mahmoud Ahmed, Moataz Ahmed
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and it consists of a mixture of salt and clastics known as 'dirty salt,' which presents another challenge for velocity model building (VMB). In order to improve...
2022
An integrated workflow centered around elastic FWI for complex subsalt imaging using wide-azimuth data in the southern Gulf of Mexico
Hongyan Li, Riaz Alai, Nolan Brand, Frederico Xavier de Melo, Hugo Enrique Muñoz Cuenca, Wenmiao Liu, Iestyn Williams, Saeeda Hydal, Khaled Abdelaziz, Emmi Sanchez Vargas, Nik Nur Halim C Soh, M Shah B Sulaiman, Sandeep Kumar
International Meeting for Applied Geoscience and Energy (IMAGE)
... to improve subsalt velocity model building through converted wave velocity scanning, interleaved EFWI and tomography, and EFWI model guided salt scenario...
2024
Reservoir Description by Interferometric Imaging of VSP Data in Transition Zones
Thomas Radford, Martin Karrenbach, Ferry Yustiana, Willi Brianno, Dhea Wachju
Indonesian Petroleum Association
... the location of the reef flank, via tomographic velocity estimation, standard P-wave imaging as well as interferometric imaging. VSP DATA ACQUISITION...
2013
Application of Traveltime Tomography and Kirchhoff Migration Methods to Improve the Seismic Cross-Section Resolution on 2D Land Seismic Data
Harmita Lestari, Nur Ayu Anas, Muh. Resky Ariansyah, Sabrianto Aswad, Heri Winarto
Indonesian Petroleum Association
.... In addition, static correction will determine the velocity model created. Travel time tomography has a role to facilitate the calculation...
2019
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)
...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...
2024
CMP domain near-surface velocity model building based on deep learning
Yihao Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
...CMP domain near-surface velocity model building based on deep learning Yihao Wang CMP domain near-surface velocity model building based on deep...
2022
Abstract: Q-estimation from Uncorrelated Vibroseis VSP Model Data; #90172 (2014)
Arnim B. Haase
Search and Discovery.com
..., University of Calgary [email protected] Summary A known method for velocity dispersion estimation and Q-factor calculation from uncorrelated...
2014