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Showing 18,871 Results. Searched 201,049 documents.
An analytical model for squirt flow and viscous shear relaxation in porous rocks
Yury Alkhimenkov
International Meeting for Applied Geoscience and Energy (IMAGE)
... cause strong dissipation of energy and dispersion of velocities over a wide frequency range. Propagating seismic waves in fluid saturated rocks produce...
2023
Application of Fullwaveform Tomography to VSP Walkaway Data
Eric Takam Takougang, Youcef Bouzidi
Petroleum Exploration Society of Australia (PESA)
..., Abu Dhabi [email protected] SUMMARY VSP walkaway data were collected in an oil field in the United Arab Emirates. 2D frequency domain fullwaveform...
2016
Prestack Seismic Data Inversion for Shale Gas Reservoir Characterization in China
Gang Yu, Yusheng Zhang, Ximing Wang, Xing Liang, Uwe Strecker, Maggie Smith
Unconventional Resources Technology Conference (URTEC)
... consists of seismic angle stacks connected to well information through well-tie and wavelet extraction. Well data is also used in the low frequency...
2016
Improving reservoir imaging with FWI: A case study in the Columbus Basin, offshore Trinidad
Xiaolei Song, Simon Luo, Hu Jin, Imtiaz Ahmed, Akkel Paul, Nirala Boodoo, Ganyuan Xia, Sean Cardinez, Rodney Johnston
International Meeting for Applied Geoscience and Energy (IMAGE)
... builds up higher frequency content. We discuss the FWI workflow and inversion parameters, and in particular, key decisions in switching from raw...
2024
Streamlining subsurface insights: Single extrapolation for holistic Green's function generation
Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
..., the OWE equation in frequency-space domain is: � 𝜔𝜔 2 𝜕𝜕 2 𝜕𝜕 + 𝑖𝑖 𝑖𝑖� 𝑑𝑑(𝑥𝑥, 𝑧𝑧, 𝜔𝜔) = 0, 𝛬𝛬 = � + 2. 2...
2024
Elastic full-waveform inversion at regional scale for the northern Gulf of Mexico
Yao Yu, Anastasia Pavlovskaya, Kim Shoemaker, Hongyan Li, Jennifer Qin, David Derharoutian Jr., John Law, Zhao Ge, Ruth Hammans, Vivian Robertson, Kate Glaccum
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the northern Gulf of Mexico (GOM), since 2020. This ultra-long offset and low-frequency data, when combined with full-waveform inversion (FWI), has...
2024
Improved Latin hypercube sampling inversion method of effective reservoir parameter considering compaction trend
Xuan Zheng, Zhaoyun Zong, Kun Luo
International Meeting for Applied Geoscience and Energy (IMAGE)
... are highly affected by the initial model of the model parameters and the low frequency prior background of complex oil and gas reservoirs has the greatest...
2024
Improved channel imaging using full-waveform inversion for deepwater Lingshui giant gas reservoir in South China Sea
Tao Wu, Dun Deng, Zijing Gong, Jie Cui, Rong Li, Lianlian Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
.... This velocity update process includes several frequency bands of FWI to iteratively build up the resolution of velocity model from low to high frequency...
2024
Residual noise attenuation of poststack seismic data using t-p-x decomposition
Sujith Swaminadhan, Shuvajit Bhattacharya, Sergey Fomel
International Meeting for Applied Geoscience and Energy (IMAGE)
... to the extended t-x-p domain, where p represents the local slope of the events. The t-xp domain is an extension of the local-time-frequency transform...
2024
Abstract: Inverse Modeling the Quality Factor in an Attenuating Medium; #90171 (2013)
Dali Zhang, Michael P. Lamoureux, and Gary F. Margrave
Search and Discovery.com
... to be frequency-independent or only slowly varying with frequency. The information about the relaxation spectrum of the medium is contained in the spectral...
2013
Abstract: Impedance Joint Inversion of Surface and Borehole Seismic Data; #90187 (2014)
Danping Cao, Xingyao Yin, and Guochen Wu
Search and Discovery.com
... data is a non-unique problem and the resolution is limited by the bandwidth of the seismic data. Make full use of the high frequency seismic...
2014
Abstracts: Revisiting Homomorphic Wavelet Estimation and Phase Unwrapping; #90173 (2015)
Roberto H. Herrera and Mirko van der Baan
Search and Discovery.com
... the phase and the amplitude spectrum in a linear fashion. Unfortunately all surface-consistent deconvolutions make a minimum-phase assumption which...
2015
Abstracts: Microseismic Source Inversion in Anisotropic Media; #90173 (2015)
Scott Leaney, Chris Chapman, and Tadeusz Ulrych
Search and Discovery.com
... amplitude spectrum further analyzed with a 3-term fit to extract the low frequency scalar moment and corner frequency. For the nonlinear problems...
2015
Target Detectability of Marine Controlled Source Electromagnetic Method Insights from 1-D Modeling, #40751 (2011)
Souvik Sengupta,
Search and Discovery.com
... parameters. Transmission frequency was also taken into account. For different sets of these parameters, a set of 1-D models has been generated using...
2011
The Distribution and Seismic Prediction of Beach Bar Sandbodies in Narrow and Elongate Lacustrine Basin - A Case from Es2 in Chezhen Depression in the East of China; #50641 (2012)
Xia (Rose) Luo
Search and Discovery.com
..., and frequency spectrum analysis. The prediction technique can distinguish beach and bar sand bodies in zones less than 5 m thick. The adoption of this innovative...
2012
A Step Change in Seismic Imaging Using a Unique Ghost Free Source and Receiver System; #41449 (2014)
Per Eivind Dhelie, Robert Sorley, Torben Hoy, David Lippett
Search and Discovery.com
... in the processing flow (Figure 3). The resultant output is a fully deghosted raw shot gather dataset with a complete spectrum over the whole frequency bandwidth...
2014
Antialiasing 5D Interpolation; #41497 (2014)
Stephen K. Chiu
Search and Discovery.com
... initial model are typically not aliased and can be used to constrain the least-squares inversion in MWNI, frequency by frequency, to overcome the aliasing...
2014
The Origin of High-Frequency Platform Carbonate Cycles and Third-Order Sequences (Lower Ordovician El Paso Gp, West Texas): Constraints from Outcrop Data and Stratigraphic Modeling
R. K. Goldhammer, P. J. Lehmann, P. A. Dunn
Journal of Sedimentary Research (SEPM)
...The Origin of High-Frequency Platform Carbonate Cycles and Third-Order Sequences (Lower Ordovician El Paso Gp, West Texas): Constraints from Outcrop...
1993
High Resolution Sequence Stratigraphic Architecture of a Mid-Continent Mississippian Outcrop in Southwest Missouri
Miranda Childress, G. Michael Grammer
Oklahoma City Geological Society
...- and two-dimensional cycle analysis in establishing high frequency sequence frameworks, part 2: SEPM (SC 35), p. 1–20. Kerans, C. and Tinker, S.W., 1997...
2015
ABSTRACT: Using 2-dimensional seismic modelling to support observed DHIs the Columbus Basin, Trinidad
Akkel Paul, Abigail Maxwell-Caraballo
Geological Society of Trinidad & Tobago
... frequency content as the real seismic data and compared with the initial observations to determine both the validity and depth of the CCR. The analysis...
2022
Atenuación Q y Métodos de Descomposición Tiempo-Frecuencia para la Detección Directa de Hidrocarburos en Datos Sísmicos [PAPER IN SPANISH] Q Attenuation and Methods of Time-Frequency Decomposition for the Direct Detection of Hydrocarbons in Seismic Data
Pedro Ayala, Jesús Sierra, Dan El Montoya
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... Attenuation and Methods of Time-Frequency Decomposition for the Direct Detection of Hydrocarbons in Seismic Data Pedro Ayala, Jesús Sierra, Dan El Montoya...
2009
ABSTRACT: THE XYZ'S OF 3-D SEISMIC SURVEY DESIGN
R. Daniel Wisecup, Western Geophysical Company, Houston, TX
Ohio Geological Society
... in seismic amplitude, frequency, character, time, etc. might be attributed, with confidence, to real changes in reservoir...
1996
Resolving Sequence Architecture in Neoproterozoic Carbonates Using Stacking-Pattern Analysis: Katakturuk Dolomite, Northeastern Brooks Range, Alaska - Abstract
James G. Clough, A. K. Fairbanks, K. Robert
Alaska Geological Society
... architecture. We recognize at least four orders of superimposed stratigraphic cycles based on stacking-patterns of high-frequency “fourth/fifth...
1999
Delineation of Outwash and Glacial Diamicton at a Fuel Spill Site Using Ground-Penetrating Radar - Abstract
A. J. Delaney, P. R. Peapples, S. A. Arcone, D. E. Lawson
Alaska Geological Society
... their stratification. In silts and clays however, GPR penetration at any frequency is minimal. We use these facts to delineate the horizontal and vertical extent...
2001
Abstract: Slope Fan Deposits of the 2nd Bone Spring Sand, Young North Field, Lea County, New Mexico
Amanda Downing, Jim Mazzullo
West Texas Geological Society
.... These features are also found in the sandstone units but with less frequency. The vertical succession within the 2nd Bone Spring Sand begins with a basal mid...
2000