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The AAPG/Datapages Combined Publications Database
Showing 20,630 Results. Searched 200,685 documents.
Petrophysical Evaluation of Organic Richness and Brittleness of Shale for Unconventional Hydrocarbon Prospecting: A Case Study on Vadaparru Shale, Krishna Godavari Basin, India
Arijit Sahu, Milan Kanti Das
Unconventional Resources Technology Conference (URTEC)
... with depth in the studied wells. Methodical approaches In order to evaluate shale organic richness standard wireline logs of gamma ray (GR), deep...
2019
Revealing the discontinuities by 3D prestack diffraction separation and imaging
Chuangjian Li, Suping Peng, Xiaoqin Cui, Peng Lin
International Meeting for Applied Geoscience and Energy (IMAGE)
... the local slope throng the normal moveout velocity and ray parameter, which can enhance the stability and accuracy of local slopes. In this way...
2022
Complex mountainous stepwise tomographic inversion modeling method
Haili Wang, Yongguo Wu, Weibo Li, Zhihui Yan, Li He, Baohua Yu
International Meeting for Applied Geoscience and Energy (IMAGE)
... and the error caused by large ray depth on the shallow surface velocity of inversion have not been considered. In addition, the deeper velocity...
2024
Quantification of Total Organic Carbon Content in Shale Source Rocks: An Eagle Ford Case Study
Adel A. Alqahtani, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... it to empty-hole conditions. Crossplot of gamma-ray intensity and formation density showed a linear relationship in the Devonian shale in most of western part...
2014
Quantitative Petrophysical AVO Error Analysis in a Layered Model
Search and Discovery.com
... from Zoeppritz equation with angle from RMS velocity. Shuey Vrms angle represents reflectivities calculated from Shuey’s approximation (1985...
2013
Lateral Correlation and Interpolation of Logs: Chapter 6
John H. Doveton
AAPG Special Volumes
... is given by: [EQUATION] where gi is the ith gamma-ray log reading sampled from a total of n successive depth increments. The first moment can...
1994
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
Advances in Micromodeling using Resistivity Borehole Images
John G. Manchuk, David L. Garner, Clayton V. Deutsch
CSPG Bulletin
... is represented as Cij, i = 1, ...,M, j = 1, ...,N, where N is the number of samples along depth. All variables in Equation (5) can be assigned the same indexes...
2015
A Novel Method for Experimental Characterization of the Poroelastic Constants in Unconventional Formations
Deepak Gokaraju, Munir Aldin, Akshay Thombare, Abhijit Mitra, Sudarshan Govindarajan, Robert Patterson
Unconventional Resources Technology Conference (URTEC)
... velocity, axial and radial strains were measured to evaluate the use of velocity as a gauge. Two Linear Variable Differential Transformers (LVDT) were...
2018
Abstract: Uncertainty Space for Microseismic Event Locations using a Double Difference Algorithm; #90174 (2014)
Timur Mukhtarov
Search and Discovery.com
... to distance between the events and the receiver and the scale length of the velocity heterogeneity (Waldhauser, 2000). Figure 2: Ray path non...
2014
Comparison of gas, Klinkenberg, and liquid permeability of sandstone: Flow regime and pore size
Tobias Orlander, Harald Milsch, and Ida Lykke Fabricius
AAPG Bulletin
... the pressure approach infinity. Thus, after deriving k g from Darcy’s equation for a series of pressures, Klinkenberg made a linear correlation of k...
2021
Estimating Smectite Content from Seismic Data
Roman Beloborodov, Marina Pervukhina, Valeriya Shulakova, Dimitri Chagalov, Matthew Josh, Michael B. Clennell, Gavin Ward, Matthew Waugh, Juerg Hauser
Australian Petroleum Production & Exploration Association (APPEA) Journal
... seismic data. XRD = X-ray diffraction. AVO = amplitude variation with offset. VP = compressional velocity. Vs = shear velocity. GLM = generalised...
2019
Compositional Analysis of Lithologies from Wireline Logs: Chapter 3
John H. Doveton
AAPG Special Volumes
..., and L is a vector of the log responses of the zone to be evaluated. This equation specifies a linear model that describes the link between log...
1994
A depth uncertainty estimation system with prestack seismic data
Huafeng Liu, Andrey H. Shabelansky, Jinsong Chen, Min Yang, Cory J. Hoelting, Ying Tan
International Meeting for Applied Geoscience and Energy (IMAGE)
...A depth uncertainty estimation system with prestack seismic data Huafeng Liu, Andrey H. Shabelansky, Jinsong Chen, Min Yang, Cory J. Hoelting, Ying...
2022
Estimation of Hydraulic Fracture Height and Pressure Deflation Using a Pulsed Vertical Seismic Profile and a DAS Fiber in the Midland Basin
Robert Meek, Robert Hull, Kevin Woller, Brian Wright, Mike Martin, Hector Bello, James Bailey
Unconventional Resources Technology Conference (URTEC)
... that the direct arrival passed through a single stage in one of the horizontal wells. We estimated the height of the p-wave velocity change due...
2019
Fracture-Porosity Identification from Anisotropy AVO and Fluid Substitution Modelling in Seismic 2D Data
Septian Prahastudhi, Tenny Octaviani, Ayi Syaeful Bahri, Yulia Putri Wulandari
Indonesian Petroleum Association
...-wave and s-wave velocity in the dry and wet condition, fracture properties (D) can be found. Thomson parameters obtained from an empirical equation...
2012
Improving the Convergence of Shot-Profile Migration by Plane Wave Synthesis
Chad M. Hogan
Search and Discovery.com
... Prestack depth migration is expensive for complex regions with strong lateral velocity variations. In these regions, it is desirable to use a wave...
Unknown
Improving the Convergence of Shot-Profile Migration by Plane Wave Synthesis
Chad M. Hogan
Search and Discovery.com
... Prestack depth migration is expensive for complex regions with strong lateral velocity variations. In these regions, it is desirable to use a wave...
Unknown
SG14: The COCORP Seismic Reflection Traverse Across the Southern Appalachians - Data Acquisition and Processing
Frederick A. Cook, Larry D. Brown, Sidney Kaufman, and Jack E. Oliver
AAPG Special Volumes
... the significant field parameters for both phases of the data acquisition. On all of the lines, the geophones were arranged in a center-weighted linear array...
1983
Abstract: A New Approach to Seismic Interpretation in Challenging Imaging Environments, by C. Edward Helsing and David C. Berman; #90067 (2007)
Search and Discovery.com
2007
Abstract: Application of Viscoacoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data; #90246 (2016)
Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones
Search and Discovery.com
... of the ray-based methods, two-way wave equation-based methods that derive a high-resolution attenuation model should be implemented. The second step...
2016
First-arrival traveltime and slope tomography in tilted anisotropic media with undulant topography
Xiaole Zhou, Serge Sambolian, Gaoshan Guo, Stephane Operto, Haiqiang Lan, Ling Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
...-coherent events to build high-resolution subsurface velocity models. These models can be further used as background/initial models for depth migration...
2022
GeoMind: An intelligent earth model building tool
Saleh Al Saleh, Ewenet Gashawbeza, Mustafa Marzooq, Hussam Banaja, Husain Al Shakhs, Jianwu Jiao
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the 3D prestack depth migration with the GeoMind velocity model and wave equation migration method. Second International Meeting for Applied...
2022
Seismic Brittleness Index Volume Estimation from Well Logs in Unconventional Reservoirs; #80381 (2014)
Roderick Perez
Search and Discovery.com
... ray (GR) seismic cube using probabilistic neural network (PNN). I combined these seismic attributes using the non-linear relationship developed from...
2014
Electrical and flow properties of highly heterogeneous carbonate rocks
Charlotte Garing, Linda Luquot, Philippe A. Pezard, Philippe Gouze
AAPG Bulletin
..., different values of f) for the saturating fluid. The formation factor F was calculated using a linear regression of f plotted versus f (equation 2...
2014