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The AAPG/Datapages Combined Publications Database
Showing 2,007 Results. Searched 200,616 documents.
Rate Transient Effects of Various Complex Fracture Network Topologies in Unconventional Gas Reservoirs: A Numerical Simulation Study
Jiamin Jiang, Rami M. Younis, Leslie Thompson, Zhe Liu
Unconventional Resources Technology Conference (URTEC)
...ry Multiple-fractured horizontal wells are ideally drilled along the minimum stress direction. However, in many cases operators cannot drill in the ide...
2015
Machine Learning Regressors and their Metrics to predict Synthetic Sonic and Brittle Zones
Ishank Gupta, Deepak Devegowda, Vikram Jayaram, Chandra Rai, Carl Sondergeld
Unconventional Resources Technology Conference (URTEC)
..., Poisson’s ratio and other mechanical properties. In the field, sonic logs are not commonly acquired and operators often resort to regression...
2019
Vertical and Lateral Geological and Geochemical Characterization of the Upper and Lower Benches of the 3rd Bone Spring Sand: A Case Study in Lea County, New Mexico, USA
John Speight, Guy Oliver, Isaac Easow
Unconventional Resources Technology Conference (URTEC)
... surface logging geological and geochemical techniques offer operators a robust nearreal-time comprehensive description of the reservoir to assist...
2024
FetKin: Coupling kinematic restorations and temperature to predict thrusting, exhumation histories, and thermochronometric ages
Ariel Almendral, Wilmer Robles, Mauricio Parra, Andrés Mora, Richard A. Ketcham, and Michael Raghib
AAPG Bulletin
... a linear system where the matrix and right-hand side vector are assembled from element matrices. The time derivative has been approximated...
2015
Subsurface temperature from seismic reflections: Application to the post-breakup sequence offshore Namibia
Arka Dyuti Sarkar and Mads Huuse
AAPG Bulletin
... conductive. Therefore, the assumption is of limited lateral heat flow variability, which is backed by the BSR-derived thermal gradients and derivative heat...
2023
Utilizing the Two-Way Wave Equation: Reverse Time Pre-Stack Depth Migration
Matthew H. Karazincir, Clive M. Gerrard, Andrew Long, Lynn B. Comeaux
Indonesian Petroleum Association
.... derivative of a function f(x) is required to be approximated with 4th order accuracy on a uniform grid, the approximation can be written...
2008
Predicting pressure-dependent velocities for carbonates by linking static and dynamic elastic properties
Xuan Qin, De-hua Han
International Meeting for Applied Geoscience and Energy (IMAGE)
... the derivative of velocity with respect to porosity) for the 𝑉𝑝 -porosity relations of HS bounds and the modified HS upper bound. By taking the derivative...
2022
An effective multiphysics toolkit for lithium prospecting: From geophysics to the static reservoir model in Pozuelos salt flat, Argentina
Ana Curcio, Eliana Chanampa, Luis Cabanillas, Ricardo Piethe
International Meeting for Applied Geoscience and Energy (IMAGE)
... shows the tilt derivative map. The map, with the same interpretative scheme explained previously, shows the central minimum divided by a relative...
2022
Full-waveform inversion and FWI imaging for land data
James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas
International Meeting for Applied Geoscience and Energy (IMAGE)
... derivative of the high-resolution velocity model obtained from highfrequency FWI. We find additional information on FWI images that is not evident...
2022
High-resolution FWI of converted-wave data A case study from the Edvard Grieg field
Per Eivind Dhelie, Vidar Danielsen, Jon Andre Haugen, Emilie Davenne, Knut Richard Straith, Alireza Roodaki, Manuel Peiro, Alexis Fotsoh, Wenlei Gao, Nabil Masmoudi, Andrew Ratcliffe
International Meeting for Applied Geoscience and Energy (IMAGE)
... and FWI derivative image algorithms (FWI Imaging). The method shown here, using processed radial PS data components, is a key milestone in ongoing work...
2022
Uncertainty quantification for full-waveform inversion with a mini-batch gradient-based sampling method
Zeyu Zhao, Mrinal K. Sen
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the first- and sometime the second-order derivative of a suitably designed objective function, are often implemented to render a ’best-fit’ model that can...
2022
Unlocking subsurface complexity: Sparse ocean-bottom node and full-waveform inversion for northern Green Canyon, Gulf of Mexico
Kate Glaccum, Denes Vigh, Yao Yu, Eray Kocel, Bing Bai, Di Chen, Hongyan Li, Kevin Lyons
International Meeting for Applied Geoscience and Energy (IMAGE)
... geologic resolution from the higher frequency bands, the derivative of the updated velocity model was taken to generate a type of pseudo-reflectivity...
2022
The modeling and simulation of Scholte wave propagation at fluid-solid interface
Zhiliang Wang, Rong Huang, Guojie Song
International Meeting for Applied Geoscience and Energy (IMAGE)
...-order time derivatives, we adopt Yang et al.’s (2007) idea to transform the higher-order time derivative into the space derivative. Meanwhile, we...
2023
Tectonic analysis of regional potential field data
Peter Betts, Robin Armit, Caroline Tiddy, Sheree Armistead, Laurent Ailleres
Petroleum Exploration Society of Australia (PESA)
... imaged in the RTP tilt derivative aeromagnetic image because the processed data shows continuity and rock package boundaries Recumbent folds are tight...
2019
Application of Full Waveform Inversion to Resolve an Eroded Shallow Carbonate Platform, North Madura, East Java, Indonesia
David Cavalin, Nurrul Ismail, Tom Paten, Kola Agbebi, Dave Lim
Indonesian Petroleum Association
... by computing the 2nd order derivative of the objective function (Hessian matrix) with respect to the model parameters. The prohibitive cost of computing...
2019
Kapteyn's Transformation of Grain Size Distribution
Jiri Brezina
Journal of Sedimentary Research (SEPM)
..., for comparison, the second derivative, n, of the settling curve of figure 1 is added: the skewness curves must approach the second derivative. The most sensitive...
1963
Influences of Provenance and Diagenesis on Detrital Garnet Suites in the Paleocene Forties Sandstone, Central North Sea
Andrew C. Morton
Journal of Sedimentary Research (SEPM)
... solution derivative of the Forties association. The converse is also true: the Forties association contains garnets with compositions outside the Gannet...
1987
Slope Mapping
W. E. Dole, N. F. Jordan
AAPG Bulletin
... response for a slope (or first horizontal derivative) filter in the X or Y direction. Because the gain increases as the frequency gets higher, high...
1978
Uncertainty in well test and core permeability analysis: a case study in fluvial channel reservoirs, northern North Sea, Norway
Shi-Yi Zheng, Patrick W. M. Corbett, Alf Ryseth, George Stewart
AAPG Bulletin
... geometry of the reservoir. Modern well test interpretation relies on the identification of certain flow regimes on the derivative of pressure. Where...
2000
Abstract: Which Curvature is Right for You? Part - 2; #90174 (2014)
Satinder Chopra and Kurt J. Marfurt
Search and Discovery.com
... a vertical derivative of apparent dip at user-defined azimuth, Barnes (2000) also defined the convergence/divergence of reflections. Convergent reflections...
2014
Abstract: Full Waveform Inversion of Crosswell Seismic Data Using Automatic Differentiation; #90187 (2014)
Danping Cao and Wenyuan Liao
Search and Discovery.com
... , one can obtain the derivative with respect to the model parameter, then the perturbation model vector at the initial model m 0 can be expressed...
2014
Rethinking the Classic Oxbow Filling Model: Some Hope for Improved Reservoir Connectivity, #50447 (2011)
John Holbrook, Neal Alexandrowicz,
Search and Discovery.com
... about 55ft Channel Depth (ft) 20 40 AREA INFLECTION 60 80 100 The second derivative inflection, the depth at which channel area begins...
2011
Reservoir Modeling and Composition Simulation of Primary Depletion and Carbon Dioxide Flooding of a Small Pennsylvanian Carbonate Mound Complex, Runway Field, Paradox Basin, Utah, Volume 1-3 (OFR-421)
Wilmer E. Culham, Douglas M. Lorenz
Utah Geological Survey
... Production and GOR History Runway Well10E-2 Figure 6-12 Oil Production and GOR History Runway WelllOC-5A Figure 7-1 Runway 10G-1 Test- Derivative...
2003
Characterization and Evolution of the Professor Valley Salt Body, Paradox Basin, Utah Using Integrated Geological, Geochemical and Geophysical (Gravity) Techniques
Derek T. Scott, Mark R. Baker, Diane I. Doser, Katherine A. Giles
Rocky Mountain Association of Geologists
... region (about 12 km east of our study area). To aid in developing 2-D models of the salt body, we calculated the second vertical derivative...
2024
Development of a Novel Compositional Simulation Approach to Model Recovery from Volatile Oil Reservoirs
E. Syahrial, T. S. Daltaban
Indonesian Petroleum Association
... on water saturation. However, for three-phase systems: oil, gas and water, hydrocarbon equations contain the derivative relative permeability to oil...
1998