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The AAPG/Datapages Combined Publications Database
Showing 4,616 Results. Searched 200,616 documents.
Three-Dimensional Seismic Modeling and Seismic Facies Imaging
Hongliu Zeng , Noel Tyler , Milo M. Backus
GCAGS Transactions
... models were generated by convolving a Ricker wavelet with the primary reflection coefficient series from stacked 2-D P-wave velocity and impedance models...
1995
Chapter 5: Seismic Trace Inversion
Tom Wittick
North Texas Geological Society
.... In our case the wavelet is zero phase. The reflection coefficient at a boundary between two rocks or any change in acoustic impedance is Figure 5-1...
1992
Seismic Trace Inversion
Abilene Geological Society
... is zero phase. The reflection coefficient at a boundary between two rocks or any change in acoustic impedance is R = [V2*D2-V1*D1]/[V2*D2+V1*D1] Figure 1...
1993
Methods for seismic Sweet Spot Identification, Characterization and Prediction in Shale Plays
Marita Gading, Lars Wensaas, Paul Collins
Unconventional Resources Technology Conference (URTEC)
... their elastic anisotropy (Vernik and Nur, 1992; Vernik and Landis, 1996; Sondergeld et al., 2000). As a consequence, acoustic impedance is reduced non...
2013
Understanding Rock Quality Heterogeneity Using Combined Multicomponent Seismic Inversion and Well Log Cluster Analysis. Montney Shale Reservoir, Pouce Coupe Field, Alberta, Canada
Claudia J. Duenas, Thomas Davis, David DAmico
Unconventional Resources Technology Conference (URTEC)
... to invert for parameters such as P-impedance, S-impedance, and URTeC: 1921332 3 density. The inversion results show a good match with well logs, leading...
2014
A Seismic Rock Properties Study of a Mesozoic Reservoir in Indonesia
Andi Alamsyah, Lantu, Sabrianto Aswad, Andi Darmawansyah
Indonesian Petroleum Association
..., Extended Elastic Impedance (EEI) has been found to be an effective discriminator in terms of lithology and fluid separation. Another useful concept...
2013
Deep neural networks for 1D impedance inversion
Vladimir Puzyrev, Anton Egorov, Anastasia Pirogova, Chris Elders, Claus Otto
Petroleum Exploration Society of Australia (PESA)
...Deep neural networks for 1D impedance inversion Vladimir Puzyrev, Anton Egorov, Anastasia Pirogova, Chris Elders, Claus Otto Deep neural networks...
2019
Structural Curvature versus Amplitude Curvature, #41012 (2012)
Satinder Chopra, Kurt J. Marfurt
Search and Discovery.com
... a horizon slice through a seismic amplitude, RMS amplitude, or impedance volume. Next, we compute the inline and crossline derivatives of this map. Computing...
2012
Enhancing Pre-Stack Seismic Inversion Using Neural Networks for Clastic Reservoir Characterization Simian Field, Offshore Nile Delta, Egypt; #20413 (2018)
Wael Said, Islam A. Mohamed, Ahmed Ali
Search and Discovery.com
... for the clastic reservoirs’ characterization. As the pre-stack inversion provides reliable impedance volumes and the neural-network analysis goes beyond...
2018
High-Resolution Three-Dimensional Water Saturation Prediction - A Case Study from Offshore Nile Delta; #42206 (2018)
Islam A. Mohamed, Ahmed Hosny, Abdulrahman Ali Mohamed
Search and Discovery.com
..., and the geostatistics. The mean of the realizations gives a highly resolved estimate of the acoustic impedance and shear impedance. Then, Vp/Vs volume...
2018
Seismic Foldout: Revealing a Promising New Play Concept in the Salar Basin, Offshore Canada
Yermek Balabekov, Susana Tierrablanca, Sriram Arasanipalai, Nizar Chemingui, PGS
GEO ExPro Magazine
... inversion of velocity and reflectivity (PGS Ultima) on AVO-compliant GeoStreamer data provides a high-resolution velocity model, with relative impedance...
2023
Abstract: Interpretation and Modeling of Time-Lapse Seismic Data: Lena Field, Gulf of Mexico
D. H. Johnston, J. J. Shyeh, J. E. Eastwood, ] M. Khan, and L. R. Stanley
Houston Geological Society Bulletin
... a very slight increase in impedance because the formation fluid pressure has declined, increasing the effective stress on the reservoir. Where oil has...
2001
Abstract: Seismic Inversion in a Tight Gas Sand: An Illuminating Case Study; #90171 (2013)
David Close, David Cho, Frederik Horn, and Charles Wagner
Search and Discovery.com
... the acoustic impedance interpretability is limited by variations in geopressure that are not independently constrained. The well-log calibrated seismic inversion...
2013
Abstract: Seismic Inversion in a Tight Gas Sand: An Illuminating Case Study; #90171 (2013)
David Close, David Cho, Frederik Horn, and Charles Wagner
Search and Discovery.com
... the acoustic impedance interpretability is limited by variations in geopressure that are not independently constrained. The well-log calibrated seismic inversion...
2013
Abstracts: Constraining Geologic Models with Seismic Inversions; #90173 (2015)
John V. Pendrel, Sumon Bhattacharyya, and David Fowler
Search and Discovery.com
...-point grid with inversion impedances in an artifact-free way. A relation between relevant geologic facies and impedance is then determined and input...
2015
Petrophysics and Rock Physics Modeling to Improve Seismic Reservoir Characterization Case Study of Lower Hackberry Sandstone; #40774 (2011)
Robert Y. Hu, Ted Holden, and Mary Broussard
Search and Discovery.com
..., resulting in a large contrast in acoustic impedance that overshadowed the fluid effect. Shale replacement with normal shale properties was applied...
2011
Seismic Reservoir Characterization of the Morrow A Sandstone, Postle Field, Texas County, Oklahoma, #50517 (2011)
Thomas L. Davis, Robert D. Benson, Scott Wehner, Michael Raines, Roger Freidline
Search and Discovery.com
...) buried beneath a complex overburden at 6,100 ft (1,850m) depth. Even though the sandstone is thin, it has a greater elastic impedance contrast than...
2011
VSP Lookahead of the Bit Information: Considerations and Accuracy Analysis, #42196 (2018).
P. Ranjan, M. Khaitan, S. Chandrasekhar, Basant Kumar
Search and Discovery.com
... position. The reflected waves contain acoustic information that can be inverted for impedance and velocity profiles. This unique feature in estimating...
2018
Conditioning Prestack Seismic Data in the Offset-Azimuth Domain; #42462 (2019)
Ritesh Kumar Sharma, Satinder Chopra
Search and Discovery.com
...) General Statement These days acoustic and elastic impedance are commonly derived from 3-D seismic data, which help us compute porosity...
2019
Tectonic Control on the Deposition of Organic-Rich Basinal Facies of Vaca Muerta Formation; #51670 (2020)
Alejandro Bande, Ricardo Veiga, Horacio Acevedo, Alfonso Mosquera
Search and Discovery.com
... a decrease of reservoir quality to the W and ticker intervals of low impedance strata towards the E. Additionally, regional VM TOC map show reduced values...
2020
Pushing the envelope of seismic stratigraphic interpretation: a case-study from the Mannville Group using small 3-D surveys
M. Smaili, B.S. Hart
CSPG Bulletin
... with either data set alone. We then used seismic inversion and a seismic attribute study to make quantitative lithology predictions. Acoustic impedance...
2018
Facies Mapping from Three-Dimensional Seismic Data: Potential and Guidelines from a Tertiary Sandstone-Shale Sequence Model, Powderhorn Field, Calhoun County, Texas
Hongliu Zeng , Milo M. Backus , Kenneth T. Barrow , Noel Tyler
AAPG Bulletin
... regression with SP and resistivity logs to build 3-D properties models, including models of transit time and impedance. The impedance model was mapped...
1996
4D Finite Difference Forward Modeling within a Redefined Closed-Loop Seismic Reservoir Monitoring Workflow, #41922 (2016).
David Hill, Dominic Lowden, Sonika, Chris Koeninger
Search and Discovery.com
..., with measured elastic parameter changes from an acoustic impedance inversion of 4D time-lapse seismic data. In the subsequent years variations...
2016
Reconditioning Seismic Data for Improved Reservoir Characterization, Lower Clear Fork and Wichita, Fullerton Field, West Texas
Hongliu Zeng, Stephen C. Ruppel, Rebecca H. Jones
West Texas Geological Society
... data for impedance representation, roughly linking seismic amplitude directly to log lithology and porosity. High-frequency enhancement raises...
2003
Application of seismic spectral blueing based on generalized S-transform in high-quality reservoir prediction in gas cloud area
Pengzhi Zhang, Lei Liu, Zhiheng Jiang, Zhenglong Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... to implement. It has achieved good results in high resolution reservoir prediction and colored wave impedance inversion. Based on the different...
2022