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Showing 4,634 Results. Searched 201,049 documents.
Tectonic and Petrophysical Investigation of Williston Basin Strata around the Weyburn CO2 Sequestration Reservoir
Sandor Sule, Zoltan Hajnal, and Bhaskar Pandit
Saskatchewan Geological Society
... seismic impedance, and the impedance values derived from acoustic and density wireline-logs (Figure 10). Figure 9 - Map of shale % in the Lower...
2006
ABSTRACT: FALSE POSITIVE SEISMIC BRIGHT SPOTS AND DISCRIMINATION BETWEEN GAS AND BRINE SATURATION, USING AVO ANALYSIS IN THE COLUMBUS BASIN, OFFSHORE TRINIDAD
Kathryn Young and Robert Tatham
Geological Society of Trinidad & Tobago
... seismic data were applied to 4 different study areas within the Columbus Basin: Intercept (A) and Gradient (B), Elastic Impedance (EI) inversion and Lambda...
2007
Abstract: Advanced Reservoir Characterisation Over the Sirikit Field: Prediction of Sand Distribution, Porosity and Connectivity
Phil Beale
Southeast Asia Petroleum Exploration Society (SEAPEX)
... to address several development issues. The project was undertaken in two phases. First conventional Acoustic Impedance (AI) inversion was used...
2001
Wide-angle AVO-inversion using constant P-traces: AVP-inversion
Dennis Cooke
International Meeting for Applied Geoscience and Energy (IMAGE)
... equation, the model m is defined as: 𝒎= !!! !!! !" !!! !!! !! ! …………………..….….(4) where 𝐼! , 𝐼! are P-impedance and S-impedance. Equations (3 & 4...
2022
3-D Seismic Classification - An Efficient Approach to Identify Prospective Targets in South Louisiana [Abstract]
Dave Paddock, Fangjian 'Jack' Xue, Kim Hemsley Schlumberger
New Orleans Geological Society
... as the input for classification: conventional seismic; acoustic impedance; reflection strength; instantaneous frequency; and trace decomposition. A seismic...
2003
The temperature structure of the upper mantle based on magnetotelluric data beneath the western Qaidam Basin, northern Tibet, China
Lishui Zhou, Letian Zhang, Sheng Jin
International Meeting for Applied Geoscience and Energy (IMAGE)
... study area. As shown in the formula (1), to eliminate the influence of current distortion further, the 2-D region impedance (𝑍2 ) was solved by G-B...
2022
Principles and Techniques of VSP Data Processing
A.A. Tabakov, V.N. Ferentsi, H.Garvini
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... is usually carried out. When dealing with only P waves, optimal inversion for acoustic impedance recovery can be applied (Tal-Virsky, Tabakov, 1983...
2006
Novel forward seismic modeling using the integration of Schmidt hammer and LiDAR: Example McKittrick Canyon Permian Reef Trail outcrop, Guadalupe National Park, Texas
Zhuobo Wang, John Pigott, Chenxi Xu
International Meeting for Applied Geoscience and Energy (IMAGE)
...) interbedding of the siliciclastic onlapping wedge and HST carbonate members. Conclusion Synthetic seismic Impedance model On top of the stratigraphic...
2022
SECTION III: Methods and Case Studies
Jeffrey M. Yarus and Richard L. Chambers
AAPG Special Volumes
... to acoustic impedance to aid in estimating interwell porosity. They use the external drift data integration method and compare and contrast...
1994
Elastic Multi-parameter FWI Imaging – a North West Shelf undeveloped gas field case study
Fabio Mancini
Southeast Asia Petroleum Exploration Society (SEAPEX)
... outputs of Vp (left), Vs/Vp (centre) and P-impedance (right). The gas field is marked by the yellow arrow. Figure 2. 30 Hz elastic MP-FWI imaging...
2025
Characterisation of focused gas hydrate accumulations from the Pegasus Basin, New Zealand, using high-resolution and conventional seismic data
Andrew R. Gorman, Patrick T. Fletcher, Dylan Baker, Douglas R.A Fraser, Gareth J. Crutchley, Stuart A. Henrys
Petroleum Exploration Society of Australia (PESA)
... impedance contrast resulting from the phase change from hydrate filled sediments to gas filled sediments can be readily identified as a bottom simulating...
2018
Rock-physics based time-lapse inversion in Delivery4D: synthetic feasibility study for CO2CRC Otway Project
Stanislav Glubokokvskikh, James Gunning, Tess Dance, Roman Pevzner, Dmitry Popik, Christian Proud
Petroleum Exploration Society of Australia (PESA)
... and actual acoustic impedance ZP in Figure 1a and seismic traces in Figure 1d. After numerous tests, we set up parameters of the inversion algorithm: time...
2018
Developing an Exploration Tool in a Mature Trend: A 3D AVO Case Study in South Texas
Mark E. Gregg, Charles T. Bukowski, Jr.
Houston Geological Society Bulletin
..., there are small contrasts in acoustic impedance between gas and wet sands and encasing shales. However, Poisson's ratio in the gas sand is significantly lower...
2001
Integrated Multidisciplinary Reservoir Characterization of the Three Forks Formation in the Williston Basin, Divide County, North Dakota
Shane M. Mogensen, Samuel D. Fluckiger, Riley Brinkerhoff, Inna Tsybulkina, Vasudev Bansal, Francisco Brito, Cesar Marin, Santi Randazzo, Michael Hoffman
Unconventional Resources Technology Conference (URTEC)
... (s-wave) velocity (Vs), density (ρ), acoustic (p-) impedance (AI), elastic (s-) impedance (SI), Vp/Vs, Poisson’s Ratio (σ), Young’s Modulus (E...
2016
Elastic AWI and RWI in the Santos Basin
Tenice Nangoo, Nikhil Shah, Adrian Umpleby, John Armitage, Mike Warner, Gustavo Catao Alves, Andre Bulcao, Analena Mileo Camara de Oliveira
International Meeting for Applied Geoscience and Energy (IMAGE)
... (Warner et al., 2023). Salt models invariably contain strong and rapid impedance contrasts, and these typically produce significant elastic effects...
2024
Interactive methods for enhancing the accuracy prediction and characterization of deep-water architectural elements in Western Black Sea, Romania
Juan Daniel Sanchez Mendoza, Michele Morosini
International Meeting for Applied Geoscience and Energy (IMAGE)
... with Acoustic Impedance, as a visual proxy for the lithology and overall rock quality (Figure 3). With such rendering, a series of seismic cross sections have...
2024
Abstract: Advances in Hydrographic Systems Aid Hydrocarbon Exploration and Geohazard Evaluation
Daniel L. Orange
Houston Geological Society Bulletin
... surveys. Summary: Geophysical systems that can be used to evaluate the impedance/ roughness and the shape (bathymetry) of the seafloor...
2005
Wave-equation based inversion for carbonate reservoir characterization in Kuwait
Rao Narhari, Ahmad Al-Sabari, Afrah Al-Ajmi, Justin Ugbo, Jeremy Harris, Gerard Soto, Panos Doulgeris
International Meeting for Applied Geoscience and Energy (IMAGE)
... 1015m thick dolomitic sweet-spots in this particular reservoir. Furthermore, we observe that acoustic impedance from deterministic inversion...
2024
Guided strategies for improving machine learning models applied to geophysical problems
Satyan Singh, Konstantin Osypov, Graham Baines, Mark Willis
International Meeting for Applied Geoscience and Energy (IMAGE)
... and the American Association of Petroleum Geologists REFERENCES Alfarraj, M., and G. Alregib, 2019, Semisupervised sequence modeling for elastic impedance...
2024
Extended Abstract: Managing “Big Data” and Finding the “Sweet Spots”: Principal Component Analysis and Neural Analysis of Seismic Attributes to the Rescue
Deborah King Sacrey
Houston Geological Society Bulletin
... (Sweetness, Relative Acoustic Impedance), AVO (Fluid Factor, Intercept Gradient), Spectral Decomposition (Envelope-based or Wavelet-Based) and Inversion...
2015
Extended Abstract: A Geology-Based, Non-Seismic Attribute Method to Generate Facies, Lithology, and Petrophysical Parameters in Chinook and Cascade Fields, Walker Ridge Protraction Area, Gulf of Mexico, USA
Elizabeth Ann Watkins, Julio Tamashiro, Nicolas Martin, Eldar Guliyev, Renato Leite, Nhom Vince Nguyen, Abayomi Aina, Mauro R. Becker, Marcelo Cristian Torrez Canaviri
Houston Geological Society Bulletin
... quantitative seismic attribute correlations (such as acoustic impedance) have not been obtained, so far, for characterization of depositional packages...
2016
Anatomy and Lithofacies of an Intact and Seismic-Scale Carboniferous Carbonate Platform (Asturias, NW Spain): Analogs of Hydrocarbon Reservoirs in the Pricaspian Basin (Kazakhstan)
Jeroen A. M. Kenter, Frans Van Hoeflaken, Juan R. Bahamonde, Guido L. Bracco Gartner, Lorenz Keim, Ronald E. Besems
Special Publications of SEPM
... of pseudo-unconformities instead of truncational toplaps, and the development of methods to construct realistic impedance models. Similarly, a synthetic model...
2002
Hydrocarbon Seeps of the Louisiana Continental Slope: Seismic Amplitude Signature and Sea Floor Response
Harry H. Roberts , Douglas J. Cook , Mark K. Sheedlo
GCAGS Transactions
... hydrate stability (a strong low impedance seismic event). In addition, surface and near-surface amplitude data enhance structural patterns and suggest...
1992
Estimation of Total Organic Carbon (TOC) Content of Shale from AVO Inversion: A New Crossplot Approach Based on Zoeppritz Equations
Un Young Lim, Richard Gibson Jr., Nurul Kabir
Unconventional Resources Technology Conference (URTEC)
..., and density, of shale. However, results from conventional cross-plots are usually limited to acoustic impedance (AI), shear impedance (SI...
2019
Jurassic Stratigraphy of the Wiggins Arch, Mississippi
John A. Rhodes, Glenn B. Maxwell
GCAGS Transactions
... or low acoustic impedance. The only lithology varying between the two extremes is porous carbonate which is, unfortunately, quite rare (Figure 4...
1993