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The AAPG/Datapages Combined Publications Database
Showing 20,604 Results. Searched 200,357 documents.
The Limitations of Seismic Modelling of Geological Structures
B. L. N. Kennett
Petroleum Exploration Society of Australia (PESA)
.... Geometrical ray theory is of value in the construction of the two-way travel time field to a reflector, but we may also use ray theory as a high...
1985
Clay Minerals of Laramie Formation, Golden, Colorado, Identified by X-ray Diffraction
Arthur James Gude, rd
AAPG Bulletin
... and theory are presented briefly only where definitions are needed. The X-ray laboratory techniques for geological work are described. The X-ray...
1950
An enhanced method for gas evaluation by pulsed neutron logging technology in tight reservoirs
Bing Xie, Jilin Fan, Feng Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... of the formation. According to the thermal neutron distribution in the neutron double-group diffusion theory, the capture gamma-ray flux φt (R) received...
2022
Abstract: Complex-beam Migration: Non-recursive and Recursive Implementations; #90187 (2014)
Tianfei Zhu
Search and Discovery.com
...-Menahem, A., and Beydoun, B.B., 1985, Range of validity of seismic ray and beam methods in general inhomogeneous media – I. General theory: Geophys. J. R...
2014
Abstract: Regular Grids Travel Time Calculation A Practical Huygens Wavefront Expansion Approach; #90187 (2014)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
...ront tracing, Geophysics, Vol.66, No.3, 883889. Cerveny, V. , 2001, Seismic ray theory, Cambridge Univ...
2014
Fluid and Petrophysical Prediction in the Elastic Impedance Domain Using Neural Network Technique; #41066 (2012)
M. Hermana, M. Najmi, Z.Z.T. Harith, and C.W. Sum
Search and Discovery.com
... this difficulty. In this paper, the seismic volume of well log properties such as gamma ray (GR) will be derived to characterize reservoirs in terms...
2012
Seismic Models of Fifteen Stratigraphically Controlled Oil and Gas Fields with Sandstone Reservoirs, Rocky Mountain Basins: ABSTRACT
Robert T. Ryder, Gerald N. Smith, Myung W. Lee
AAPG Bulletin
..., Gerald N. Smith, Myung W. Lee 1979 840 840 63 5. (May) Two-dimensional seismic models, derived from both normal-incidence ray-theory and wave-theory...
1979
Optimization method of geometry and application based on Fresnel Gaussian beam forward modeling
Yang Jing, Yu Fuwen, Xu Xiaokun, Lv Shuang, Wang Xiangqian
International Meeting for Applied Geoscience and Energy (IMAGE)
... developed a forward method combining ray theory with wave equation [1].In 2006, Li Ruizhong introduced the advantage of Gaussian beam method...
2024
Quantitative X-Ray Diffractometry of Carbonate Rocks: RESEARCH METHOD PAPER
J. H. Fang, L. Zevin
Journal of Sedimentary Research (SEPM)
... of calcite, dolomite, quartz, pyrite, and anhydrite. THEORY As is well known, X-ray quantitative analysis is based on the equation of King and Alexander (1974...
1985
The Basis on Which Our Science Rests
W. V. Howard
Tulsa Geological Society
... to the facts observed in nature becomes of minor importance. Among these are the theory that porosity in limestones is caused by "dolomitization...
1943
Multifocusing Stack Technique for Subsurface Imaging, #40749 (2011)
Sunjay Sunjay,
Search and Discovery.com
... in the observed wave fields within the framework of the ray theory. References Berkovitch, A., I. Belfer and E. Landa, 2008, Multifocusing as a method...
2011
VSP and Well Logs from a Shallow Test Well
Search and Discovery.com
... well logs (natural gamma-ray, 16”-normal and focused-beam resistivity, SP, temperature, density, and caliper) were acquired in the open hole immediately...
2013
Application of finite difference eikonal solver for traveltime computation in forward modeling and migration
Amir Mustaqim Majdi, Seyed Yaser Moussavi Alashloo, Nik Nur Anis Amalina Nik Mohd Hassan, Abdul Rahim Md Arshad, Abdul Halim Abdul Latiff
Geological Society of Malaysia (GSM)
... plane harmonic solutions and employ the high frequency approximation of ray theory (Lecomte et al., 2000). In other words, the eikonal equation...
2021
PETROGRAPHIC ANALYSIS OF THE "KIBBEY LIMESTONE"
RICHARD R. RAWSON
Montana Geological Society
.... Publ., n. 13, p. 89-111. Irwin, M. L., 1965, General theory of epeiric dear water sedimentation: Am. Assoc Petroleum Geologists Bull...
1969
Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data
A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... of Simultaneously, the elements of the matrix (the Fréchet derivatives) are computed by applying ray perturbation theory along each normal ray. Cost function...
2009
Abstract: The Use of XRF as a Petrophysical Tool in Exploration and Development; #90187 (2014)
Jeff Taylor and Yeny Cortes
Search and Discovery.com
... with field examples. Introduction An X-ray fluorescence (XRF) spectrometer is an x-ray instrument used for routine, relatively nondestructive chemical...
2014
Abstract: Discriminating Depositional Habitat and Provenance of Mudrock Through Use of Spectral Gamma Ray; #90063 (2007)
Search and Discovery.com
2007
Elastic wave reverse-time migration with dynamic focused beams for weak anisotropic media
Ning Qin
International Meeting for Applied Geoscience and Energy (IMAGE)
... migration is based on ray theory, which has high computational efficiency and flexibility, and can be used for target-oriented imaging. However, it fails...
2023
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)
... Acquisition parameters can be improved through forward modeling employing ray tracing theory. If previous information about a certain target area...
2006
Anisotropy Kinematics Clarified through Regime Rrays Model
William J. Vetter
Search and Discovery.com
...“ in the conventional ray theory sense are involved in wavefront progression when triggered by idealized impulse excitation at a point source in an anisotropic...
Unknown
Anisotropy Kinematics Clarified through Regime Rrays Model
William J. Vetter
Search and Discovery.com
...“ in the conventional ray theory sense are involved in wavefront progression when triggered by idealized impulse excitation at a point source in an anisotropic...
Unknown
Abstract: Analysis of Parent Source Material of Calcium Bentonite in Smith County, Mississippi
Kayla Calhoun, Brenda Kirkland, Darrel Schmitz, James May
GCAGS Transactions
... consist of calcium montmorillonite, a smectite clay with an aluminum silicate and calcium structure. A widely accepted theory is that calcium bentonite...
2014
Amplitude and Phase Accuracy for x-t DMO, by Craig J. Beasley; #91024 (1989)
Search and Discovery.com
1989
Seismic Interpretation I and II--Recent Advances in Seismic Exploration: ABSTRACT
Ray L. Sengbush
AAPG Bulletin
...Seismic Interpretation I and II--Recent Advances in Seismic Exploration: ABSTRACT Ray L. Sengbush 1973 804 804 57 4. (April) This capsule review...
1973
Seismic Models of 15 Stratigraphically Controlled Oil and Gas Fields Containing Sandstone Reservoirs in Rocky Mountain Basins: ABSTRACT
Robert T. Ryder, Gerald N. Smith, Myung W. Lee
AAPG Bulletin
... T. Ryder, Gerald N. Smith, Myung W. Lee 1980 778 778 64 5. (May) Two-dimensional, normal-incidence, ray-theory seismic models were generated for 15...
1980