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The AAPG/Datapages Combined Publications Database
Showing 27,163 Results. Searched 195,364 documents.
Relation of Organic Matter to Color of Sedimentary Rocks
H. Whitman Patnode
AAPG Bulletin
... of all samples. The average reduction number is about 1.00 and the average reflectivity 31 per cent. The angle at which t e regression lines cross...
1941
P- and PS-Wave Vector Wavefields for Anisotropic Petrophysics
James Gaiser
Petroleum Exploration Society of Australia (PESA)
... inversion methods. Norton et al. (2010) show that conventional seismic methods of amplitude variation with offset or angle (AVO or AVA) inversion...
2016
Abstract: Physical Modeling for Azimuthal AVO Over a Simulated Fractured Medium; #90174 (2014)
Faranak Mahmoudian, Gary F. Margrave, and Joe Wong
Search and Discovery.com
... variation, although small, is demonstrated clearly. Note that the AVA variation is small for incident angles less than 30⁰. AAPG Datapages/Search...
2014
Future of Tunu Field Development: A Breakthrough of Gas Sand Identification Using Automated Seismic Assessment, #42144 (2017).
Firman B. Kurniawan, Rangga A. Brahmantio, Argo Wuryanto, Yudhistira Adji, Eros S. Erriyantoro, Pujo Rahmanto
Search and Discovery.com
...-substacks, CDP gathers, amplitude versus angle (AVA), and inversion/litho-seismic cube. From the 1-D modeling and drilled wells results, the water sands do...
2017
Abstract: Gabbros, metagabbros and waves in the continental crust
Chuck Hurich, Aphrodite Indares, Sharon Deemer
Atlantic Geology
... and metamorphic grade in determining the velocity, density and reflectivity structure of the continental crust. Unmetamorphosed examples...
1998
Abstracts: The Reflectivity Response of Multiple Fractures and its Implications for Azimuthal AVO Inversion; #90173 (2015)
Olivia Collet, Benjamin Roure, Jon Downton
Search and Discovery.com
... variation of the reflectivity response when we increase the angle separating both sets of fractures. Besides, we can distinguish on figure 3 (right...
2015
Abstract: P- and S-Wave Velocity Measurements and Pressure Sensitivity Analysis of AVA Response; #90211 (2015)
Tiewei He and Douglas Schmitt
Search and Discovery.com
...Abstract: P- and S-Wave Velocity Measurements and Pressure Sensitivity Analysis of AVA Response; #90211 (2015) Tiewei He and Douglas Schmitt...
2015
Abstract: Maximize the Potential of Seismic Data in Shale Exploration and Production Examples from the Barnett Shale and the Eagle Ford Shale; #90187 (2014)
Joanne Wang and Duane Dopkin
Search and Discovery.com
... suited for velocity anisotropy and azimuthal AVA determinations. The AVAZ approach measures the changes in amplitude variation with reflection angle...
2014
Methods of estimating wavelet stationarity, stabilizing non-stationarity, and evaluating its impact on inversion: A synthetic example using SEAM II Barrett unconventional model
Jesse Buckner, Michael Fry, Joe Zuech, Peter Harris, Bill Shea
International Meeting for Applied Geoscience and Energy (IMAGE)
.... The impact of this stabilization routine is shown by improvement in pre-stack amplitude versus angle (AVA) inversion results. commonly observed...
2023
Abstract: Mapping Lithological Heterogeneity in Athabasca Oil Sand Reservoirs Using Surface Seismic Data: Case History; #90171 (2013)
Yong Xu and Satinder Chopra
Search and Discovery.com
... the formation and weak correlation between seismic (P impedance or reflectivity) and lithology, “normal” attempts at geologic interpretation usually prove...
2013
De-Risking Exploration Well in A Mature Basin, Jabung Block, South Sumatra Basin: Application of Avo Analysis in A Sub-Unconformity Play
Lucky Kriski Muhtar, Mawar Indah Nursina, Iman Suripto Suyatno, Henri Heru Prasetijo, Hendra Niko Saputra
Indonesian Petroleum Association
.... To de-risk the play, this study proposes to characterize the reservoir by Amplitude Variation with Offset/Angle (AVO/AVA) method for a better...
2022
Seismic Foldout: Quad 35 Hybrid MC3Ds: Innovative multi-parameter FWI for near field exploration
Tor Akermoen, Jeroen Hoogeveen, GEOEX MCG, Kristen Berli, Seismic Partner, Tom Rayment, Percy Mellar
GEO ExPro Magazine
..., this approach provides true-amplitude reflectivity images for both structural and quantitative interpretation (including angle stacks for AVA analysis...
2023
Reflection Seismogram in a Solid Layered Earth: ABSTRACT
Milo M. Backus, Filho Nepomuceno, Jingzhong Cao
AAPG Bulletin
... of compressional and shear velocity variations. The expected variation in reflectivity with offset in clastic basins suggests that we should seriously...
1983
AVAZ inversion for brittleness indicator and fracture parameters of gas-bearing reservoirs with tilted transverse isotropy
Yuanyuan Tan, Guangzhi Zhang, Zhengqian Ma, Ying Lin
International Meeting for Applied Geoscience and Energy (IMAGE)
... the amplitude variation with the angle and azimuth (AVAZ) inversion. First, we derive a linearized PP-wave reflection coefficient of the TTI medium...
2023
Reservoir Characterisation Through Integrated AVO, AI and EI Inversion
Andy Furniss
Indonesian Petroleum Association
...) are the most widely used in AVO studies. The Shuey equation relates reflectivity at a given angle, R(θ), as a function of normal incidence reflectivity...
2002
Hydrocarbon Expression on Low-Impedance AVO: A Phenomenon of Amplitude Reversal
W. Waluyo
Indonesian Petroleum Association
... offset or angle of incidence. The calculated reflectivity of Model 3 is shown in Figure 4. This model is similar to Model 2, however the concentration...
2002
Abstract: Kirchhoff Prestack Time Migration with Angle Domain Common Image Gathers; #90174 (2014)
Jianhua Pan, Robert Tilson, Gerry Schlosser, and Elvis Floreani
Search and Discovery.com
... be obtained from seismic data by processing in common angle gathers. Instances of these benefits are amplitude-versus-angle (AVA) analysis with the specific...
2014
Learning from 40 Years Experience: Risking Seismic Amplitude Anomaly Prospects; #110139 (2010)
Mike Forrest
Search and Discovery.com
... with offset/angle (AVO, AVA): prestack data, seismic gathers, offset/angle stacks, cross-plots (actually “change in AVO”) Phase (Polarity) Change: seismic...
2010
Pre-Messinian Tight Reservoir Characterization Western Nile Delta, Egypt; #11317 (2020)
Trisakti Kurniawan, Hasnor Farhana Hasnan, M Adni B Wahab, Wahyu Prasetyotomo, Christian Brinzer, Alessandro Mannini
Search and Discovery.com
... to capture uncertainty in thickness, tuning, and variation in reservoir effectiveness. Anisotropy as another factor was also considered in the model...
2020
AVO Inversion in Marine Gas Hydrate Studies; #41603 (2015)
Marc-André Chen, Stan Dosso, George Spence, Michael Riedel, Roy Hyndman
Search and Discovery.com
... and free-gas from suitable multichannel seismic (MCS) data is the study of BSR amplitude variation with offset (AVO), a method commonly used for hydrocarbon...
2015
Abstracts: Fluid Substitution and Seismic Modelling in a Sandstone Aquifer; #90173 (2015)
Virginia C. Vera and Don C. Lawton
Search and Discovery.com
... saturation stages: 0%, 20% and 60%. Figure 5 confirms that the reflectivity diminishes with the increment in the incident angle. All the curves have the same...
2015
ABSTRACT: Prestack Depth Migration for 'Easy' Onshore Plays?, by Morgan Brown; #90156 (2012)
Search and Discovery.com
2012
Pre-Messinian Tight Reservoir Characterization — Western Nile Delta, Egypt
Search and Discovery.com
N/A
Seismic Lithology and Pitfalls in Seismic Porosity Detection: ABSTRACT
D. R. Balogh, W. Barney, D. Harvey, G. W. Snyder
AAPG Bulletin
... reflectivity to be estimated from the offset variation. The results of this procedure show greater continuity and geologic interpretability. More important...
1985
Seismic Foldout: Potential Prospectivity Identified in the Orphan Basin
Yermek Balabekov, Yang Yang, Sriram Arasanipalai, PGS Ultima
GEO ExPro Magazine
... manner. However, PGS Ultima is an entirely data-driven workflow and it delivers reflectivity and relative density properties in a much faster...
2022