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The AAPG/Datapages Combined Publications Database
Showing 20,630 Results. Searched 200,685 documents.
Forward Modeling to Improve Seismic Acquisition Design
Paula A.C. Barbosa, Jose A. Jaramillo, Jose H. Olaya
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... numerical modeling techniques: ray tracing. This theory is an approximation to the solution of the elastodynamic wavefield equation, which is valid...
2006
Anisotropic Pre-Stack Depth Migration in the Cusiana and Cupiagua Sur Fields
J. Checa, M. Mesa, N. Burke, J. Calderon, H. Alfonso, U. Egozi, B. Ver West, M. Yates
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
...). In this process, non flatness of the CIGs is associated with velocity errors along the travel paths of the corresponding Common Reflection Point (CRP) ray...
2006
Three-Dimensional Depth Imaging of Seismic Data to Assess Subsurface Geology in Northern Utah and Southwestern Wyoming
Alvin K. Benson
Utah Geological Association
... models based on 3-D information were constructed (figure 13). Using these 3-D depth models for velocity information, a 3-D wave-equation depth image...
1999
Fit For Purpose Integrated Structural Identification Using Azimuthal Monopole Sonic Waveforms and Vertical Seismic Profiling: The First Case Study From The Vertical Unconventional Well in North Sumatera Basin - Indonesia
Erfandi Adhiansyah, Annisa Nur Mahdiya, Murthala Hatta, Irma Eliza, Barry Albert Lumankun
Indonesian Petroleum Association
... of the source offset. The process for producing the image involved building a velocity model. The velocity was derived from the time-depth relationship...
2022
Karst topography paces the deposition of lower Permian, organic-rich, marine–continental transitional shales in the southeastern Ordos Basin, northwestern China
Xi Zhang, Xiaoming Zhao, Jiawang Ge, Shuxin Li, and Tingshan Zhang
AAPG Bulletin
... ray (GR), density (DEN), and acoustic (AC) logging data (D); seismic velocity (E); modal mineralogy (F); Sr/Ba, Ni/V, Ni/Co, and U/Th ratios (G); total...
2024
Coupling Geomechanics and Petrophysical Measurements for Production Enhancement in Organic-Rich Shales
Azra N. Tutuncu, Daisuke Katsuki, Binh T. Bui, Anton Padin, Bryan McDowell
Unconventional Resources Technology Conference (URTEC)
... property alteration and formation tortuosity. The grain contact adhesion hysteresis model was modified to incorporate permeability and velocity...
2016
3-D Tomographic Amplitude Inversion for Compensating Transmission Losses in the Overburden
Barry Hung, Kefeng Xin, Sergey Birdus, James Sun
Indonesian Petroleum Association
... anomalies. and reference amplitudes information from step (1), the tomographic inversion equation for velocity update as described by Zhou et al (2003...
2009
Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)
Robert J. Ferguson and Gary F. Margrave
Search and Discovery.com
... and seismic reflectivity is estimated (imaging). Unlike ray-based approaches, extrapolation raypaths are not restricted to minimum traveltimes (Schneider...
2013
Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)
Robert J. Ferguson and Gary F. Margrave
Search and Discovery.com
... and seismic reflectivity is estimated (imaging). Unlike ray-based approaches, extrapolation raypaths are not restricted to minimum traveltimes (Schneider...
2013
Porosity Determination by 3D High-Resolution X-Ray Computed Microtomography and Its Correlation with Gas Adsorption Technique; #40509 (2010)
Inaya Lima, Milena Oliveira, Paula Rocha, Francisco Souza, Carlos J. Abreu, and Ricardo Lopes
Search and Discovery.com
...) (1) In Equation 1, Io is the X-ray incident; I is the X-ray transmitted by the samples; is the linear attenuation coefficient of the sample...
2010
Porosity Determination by 3D High-Resolution X-Ray Computed Microtomography and Its Correlation with Gas Adsorption Technique; #40509 (2010)
Inaya Lima, Milena Oliveira, Paula Rocha, Francisco Souza, Carlos J. Abreu, and Ricardo Lopes
Search and Discovery.com
...) (1) In Equation 1, Io is the X-ray incident; I is the X-ray transmitted by the samples; is the linear attenuation coefficient of the sample, and x...
2010
Untapping a behind Casing Hydrocarbon Potential by Integrating Well and Seismic Data with Static Model: Case Study in the Lower Lemat Formation in South Sumatera Basin
Muhamad Ardhian Bayu Aji, Bakhtiyar Irfan Alfani, Ilyas Anindita, Muchamad Ocky Bayu Nugroho
Indonesian Petroleum Association
...). Gamma ray logs are used to calculate shale volume using a linear method because the results obtained are more suitable if validated using mud log data...
2024
Identification of Fluid Movement in the Formation and Behind Casing Through the Use of Thermal and Acoustic Energy from Production Logs
Jose González, Alejandro Linares, Jairo Pérez, Alexander Castro, Virginia Mayorga, Danelys Bernal Correa, Juan Marin, Mario Ardila Moreno, Diego Rodriguez, Jose Vasquez
Unconventional Resources Technology Conference (URTEC)
... is directly proportional to the fluid velocity and inversely proportional to the cross-sectional area. Moreover, according to Bernoulli's equation (1738...
2023
Abstract: Measuring the Anisotropy of Salt in the Mahogany Oil Field, Gulf of Mexico, by D. G. Raymer, J-M. Kendall, G. J. Beaudoin, M. C. Mueller, and R. R. Kendall; #90923 (1999)
Search and Discovery.com
1999
3-D High-Resolution Reservoir Characterization from Crosswell Seismic Data
John Washbourne, Kenneth Bube
West Texas Geological Society
... of the tomogram. b)Velocity tomogram after one continuation step and three non-linear inversions. c)Velocity tomogram after two continuation steps and seven non...
1998
Improvements on airborne gamma-ray spectrometry inversion
Jessica D. Weihermann, Yaoguo Li, Saulo P. Oliveira, Francisco J. F. Ferreira, Adalene M. Silva
International Meeting for Applied Geoscience and Energy (IMAGE)
...Improvements on airborne gamma-ray spectrometry inversion Jessica D. Weihermann, Yaoguo Li, Saulo P. Oliveira, Francisco J. F. Ferreira, Adalene M...
2024
Fluvial Environments and Paleohydrology of the Upper Morrow 'A' (Pennsylvanian) Meander Belt Sandstone, Beaver County, Oklahoma
Frank G. Cornish
Oklahoma City Geological Society
... (1973) derived an equation relating width and depth for streams with a sinuosity greater than 1.7. This equation determines an acceptable range of width...
1985
Abstract: Full Waveform Inversion of Borehole Data in the Presence of High-Velocity Screens; #91204 (2023)
Ali Aldawood, Andrey Bakulin, Fuqiang Chen
Search and Discovery.com
... preventing seismic energy from travelling to a deeper depth. We also add three low-velocity anomalies to introduce horizontal heterogeneity. 317 shot gathers...
2023
Numerical simulation of water injection into layered fractured carbonate reservoir analogs
Mandefro Belayneh, Sebastian Geiger, Stephan K. Matthi
AAPG Bulletin
..., the fluid velocity is computed at the center of each finite element from Darcy's law (equation 1) and is used for the solution of the conservation...
2006
Oceanographic Currents and the Convexity of the Uppermost Continental Slope
Neil C. Mitchell, John M. Huthnance
Journal of Sedimentary Research (SEPM)
... terms from how declining "energy" with water depth allows sediments to steepen. Computer models using the diffusion transport equation with mobility K...
2008
Time Series Analysis I
Roy E. Plotnick and Karen L. Prestegaard
Special Publications of SEPM
...: Autocorrelogram for gamma ray log discussed in Chapter 1. CHAPTER 3. 66 Continuous gamma ray resistivity flow velocity topography TIME SERIES ANALYSIS I...
1995
A quantitatively determining gas saturation method by pulsed neutron logging technique in complex cased borehole
Guiping Xiao, Feng Zhang, Jilin Fan, Fangwei Tang, Wei Zheng Shang
International Meeting for Applied Geoscience and Energy (IMAGE)
.... And then, the inelastic gamma-ray generated in the R can be represented: Nine(R) i in S0 e Rs e R ( ) s 4 R 2 (2) Where is the linear...
2022
Seismic Characterization of Montney Shale Using Passey's Approach
Search and Discovery.com
N/A
Geological Cross Sections: Part 6. Geological Methods
Jeremy M. Boak
AAPG Special Volumes
... is a critical tool to demonstrate the velocity structure, and consistency of conversion of time to depth. Lines connecting correlative formation or zone tops...
1992
Velocity model building and imaging driven by FWI with dual-azimuth data in a complex salt environment: Brazil case study
Xu Li, Christine Gans, Young Ho Cha, Diwi Snyder, Gopal Palacharla, Vijay Gottumukkula, Yaofeng He, Hongchuan Sun, Tetyana Vdovina, Xueyi Jia, Valeriy Brytik, Inmaculada Dura-Gomez
International Meeting for Applied Geoscience and Energy (IMAGE)
...Velocity model building and imaging driven by FWI with dual-azimuth data in a complex salt environment: Brazil case study Xu Li, Christine Gans...
2022