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The AAPG/Datapages Combined Publications Database
Showing 20,604 Results. Searched 200,357 documents.
Adaptive regularization parameter estimation in image domain least-squares migration
Shen Sheng, Huazhong Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... vector at each point in the model space based on ray theory (Lecomte, 2008). Considering the locality of PSF, a set of pulse points can be set...
2024
Large Gypsum Mounds in the Todilto Formation, New Mexico
William F. Tanner
Rocky Mountain Association of Geologists
..., evidence the river-topography theory (B-l), but appear to river-topography (B-1), appear to compatible remaining be cOInpatible with any...
1972
Abstract: Calculation of Amplitude and Velocity in General Anisotropic Media; #90224 (2015)
M. Malehmir and D. R. Schmitt
Search and Discovery.com
.... Musgrave (1970) and Auld(1973) solved for slowness and polarization for given ray path of plane wave propagating in general anisotropic media. Thomsen...
2015
Seismic Imaging Through Gas Cloud Using Borehole Seismic Walkaway Technique; A Case Example From Offshore Malaysia
Teck Kean Lim, Gunawan Taslim, Amy Mawarni M Yusoff
Indonesian Petroleum Association
... estimation (Figure-2). The low velocity of the gas saturated area causes a “pull-down” effect, as well as ray bending of P waves passing through the gas...
2008
Using Bayesian Belief Networks to Evaluate Continuous Gas Resources (Shale Gas, Tight Gas, and Coal Bed Methane): Tools to Calibrate the Expert and Exploit Knowledge; #40571 (2010)
Kurt J. Steffen
Search and Discovery.com
... tool to incorporate beliefs based on theory, empiricism, and tacit expert knowledge; 3) to manage system and input uncertainty; and 4) to improve expert...
2010
The Study of the Oligocene Electrofacies in the Paratethys Region; #30652 (2020)
Dragos Cristea
Search and Discovery.com
... the opportunity of automating the interpretation and analysis of well log data of gamma ray, neutron and density logs using a statistical pattern...
2020
Combination of Seismic Velocity Gradient and Sonic Gradient Variation as a Hydrocarbon Indicator: A Case Study in Clastic Reservoirs in South Sumatra
Iswani Waryono, Wahyu Triyoso
Indonesian Petroleum Association
... and the stack model is based on paraxial ray theory to obtain the travel time formulation for a two and three dimensional inhomogeneous model...
2012
High-Quality 3-D MicroCT Imaging of Source Rocks Novel Methodology to Measure and Correct for X-Ray Scatter
Alexander Katsevich, Michael Frenkel, Qiushi Sun, Shannon L. Eichmann, Victor Prieto
Unconventional Resources Technology Conference (URTEC)
.... Theory and Method X-Ray Scatter Correction Method The main concept behind the BSA-based method of scatter correction is as follows. Since the radiation...
2018
Fault Interpretation Problems in the Southeast Barrow Sub-Basin
R. K. Whyte
Petroleum Exploration Society of Australia (PESA)
... several major steps. With fault offset these steps cause lateral velocity contrasts on the fault plane, called velocity windows. Normal incidence ray...
1994
Multiple prediction and removal via zero offset SRME: a case study from the Tarim Basin
Yalin Li, Haijun Yang, Gengxin Peng, Duoming Zheng, Ruirui Zhao, Chuanwen Sun
International Meeting for Applied Geoscience and Energy (IMAGE)
... with offset and azimuth. The method is based on Surface-Related Multiple Elimination (SRME), which is derived from wave equation theory and is widely used...
2024
Depositional Structures and Processes in the Non-Barred High-Energy Nearshore: ERRATUM
H. E. Clifton, R. E. Hunter, R. L. Philips
Journal of Sedimentary Research (SEPM)
... of 10 seconds and a deep-water height of 1 meter. Transformations are calculated from Airy wave theory (Inman, 1963, p. 57-62), Stokes wave theory...
1971
Abstract: Azimuthal Simultaneous Elastic Inversion; #90172 (2014)
Jon Downton, Benjamin Roure
Search and Discovery.com
...-shaped crack model (Hudson et al., 1981) or linear slip deformation (LSD) theory (Schoenberg and Sayers, 1995) are explored. After describing...
2014
Abstract: Fracture Detection Via Azimuthal Analysis of Seismic Data: Snake Oil or silver Bullet?; #90187 (2014)
Mike Perz, Peter Cary, Xinxiang Li, and Satinder Chopra
Search and Discovery.com
... performance (notable, broader-scoping exceptions include a recent paper by Delbecq et al. (2013) and also Zheng et al., 2008). Theory The two P wave...
2014
Stratigraphic Correlation of Well Logs by Computer Techniques
Albert J. Rudman , Robert W. Lankston
AAPG Bulletin
...., spec. v. 12, p. 139-147. Middleton, D., 1960, An introduction to statistical communication theory: New York, McGraw-Hill, 1140 p. Neidell, N...
1973
Using Multi-Focusing 3-D Diffraction Imaging to Predict Fracture Swarms in Unconventional Reservoirs
Marianne Rauch-Davies, Alex Berkovitch, Kostya Deev
Unconventional Resources Technology Conference (URTEC)
... of the diffracted events and attenuation of the specular reflections allows creating an image that contains mostly diffraction energy. We briefly describe the theory...
2013
Ultrasonic velocity tomography of rock sample
Tian Xie, Jiajia Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... of image inversion under sparse coverage significantly. Theory and/or Method Ultrasonic waves carry a large amount of information during the propagation...
2023
Multi-Scale Rock Imaging for Reservoir Characterization: A Wolfcamp Case Study
Anyela Morcote, Radompon Sungkorn, Gustavo Carpio, Michael McGroarty, Michael Everts
Unconventional Resources Technology Conference (URTEC)
... of ML to discover and learn from its data. 2 Theory Mudrocks have complex multi-scale heterogeneous features. A variety of imaging and detection...
2016
A Special Mechanism for Varve Formation in a Glacial Lake
C. I. Dell
Journal of Sedimentary Research (SEPM)
... supports this theory. Varves in the northern part of the lake have a FIG. 1. X-ray diffraction traces showing differences in carbonate content...
1973
Direct Method for Determining Organic Shale Potential from Porosity and Resistivity Logs to Identify Possible Resource Plays; #110128 (2010)
Thomas Bowman
Search and Discovery.com
... or organic-rich shale sections a separation between the curves occur. Using the gamma-ray curve, reservoir intervals can be identified and eliminated from...
2010
Pulsed Neutron Technology: Applications for Tight Gas Reservoirs, #42004 (2017).
Gustavo Valenzuela, Gustavo Potas, Nayibe Otalora, Maria Eugenia Garcia, German Serrano, Camilo Mejia, Alejandro Schiuma
Search and Discovery.com
... of hydrogen Pulse Neutron – Basic Theory • What is a neutron generator? – Deuterium is accelerated into the tritium – High-energy neutrons that travel...
Unknown
Evaluation of Potential Geochemical Reactions and Changes in Hydrologic Properties at the Kemper County CO2 Storage Complex; #80653 (2018)
Lauren E. Beckingham, Fanqi Qin, Ishan Anjikar, Brenda L. Kirkland, Shawna Cyphers
Search and Discovery.com
... regionally extensive and attractive CO2 storage reservoirs. Here, a suite of complementary analyses including powder X-ray Diffraction (XRD) and 2D scanning...
2018
Dip and Azimuth Determination in 3D CRS-Stack
A. Hendriyana, M. Jaya, R. Sule, A.D. Guntara
Indonesian Petroleum Association
... properties along the raypath between source and receiver according to Fermat’s principle in ray theory. In contrast, CRS stacking operation...
2013
Characterization and Fracture Potential of the Viola Limestone, I-35 Road Cut, Carter County, Oklahoma: Abstract
Aisha R. Ragas, Roger M. Slatt, Douglas W. Jordan
Tulsa Geological Society
... lithology and fracture potential, and to develop simple criteria for identifying fracture-rich zones from conventional gamma-ray logs. The section...
2003
Abstract: Lithofacies and spectral gamma-ray analysis of a potential outcrop analogue for a secondary reservoir in the McCully Gas Field, Sussex, NB
Dave Keighley, Devin Mohan
Atlantic Geology
...Abstract: Lithofacies and spectral gamma-ray analysis of a potential outcrop analogue for a secondary reservoir in the McCully Gas Field, Sussex, NB...
2006
Abstract: Preliminary investigations of Nb in melt-fluid systems using in situ X-ray spectroscopy
Adam Jeremy Layman, Alan J. Anderson
Atlantic Geology
...Abstract: Preliminary investigations of Nb in melt-fluid systems using in situ X-ray spectroscopy Adam Jeremy Layman, Alan J. Anderson 94 AGS...
2006