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The AAPG/Datapages Combined Publications Database
Showing 1,444 Results. Searched 200,685 documents.
Direct Diffractometric Quantitative Analysis of Synthetic Clay Mineral Mixtures with Molybdenite as Orientation-Indicator: NOTES
Joost Quakernaat
Journal of Sedimentary Research (SEPM)
... and microabsorption effects negligeable. The mount has to he sufficiently thick in order that the diffracted X-rays have maximum intensity. Furthermore the top...
1970
Marine Aragonite Sea-Floor Growths and Cements in Permian Phylloid Algal Mounds, Sacramento Mountains, New Mexico
S. J. Mazzullo, John M. Cys
Journal of Sedimentary Research (SEPM)
..., in which Mg-calcite is the dominant cement mineralogy. ASSERETO, R., AND FOLK, R. L., 1976, Brick-like texture and radial rays in Triassic pisolites...
1979
High-Resolution Rapid Elemental Analysis Using an XRF Microscanner: RESEARCH METHODS PAPERS
Toshitada Koshikawa, Yoshiki Kido, Ryuji Tada
Journal of Sedimentary Research (SEPM)
... faster than conventional XRF glass or powder methods. EQUIPMENT The primary X-rays that impinge on the rock or sediment surface eject an electron from...
2003
ABSTRACT: Genesis of mass wasting seismic facies deduced by CAT-scan analysis; #90013 (2003)
MATHIEU JACQUES DUCHESNE, BERNARD FRANCOIS LONG
Search and Discovery.com
...-rays linear attenuation coefficients distribution maps of the various core sections over their longitudinal axis. The topogram imagery shows a 2-D...
2003
Abstract: Anisotropic Moment Tensor Inversion and Visualization Applied to a Dual Well Monitoring Survey; #90224 (2015)
Scott Leaney, Xin Yu, Chris Chapman, Les Bennett, Shawn Maxwell, Jim Rutledge, and John Duhault
Search and Discovery.com
...e – time, spreading and transmission loss, and source and receiver impedance coupling terms. In (1) the sum over rays may include reflections, mode con...
2015
Integrating Geological Attributes with a Multiple Linear Regression of Geophysical Well Logs to Estimate the Permeability of Carbonate Reservoirs in Campos Basin, Southeastern Brazil; #10930 (2017)
Paula Almeida, Abel Carrasquilla
Search and Discovery.com
... Rider, 2000). Log Measured Parameter Derivative Property/Information Gamma rays Total U, Th, and K content of formations Lithology/argilosity...
2017
Advancements in Wireline Technology – Past, Present and Future
Kenneth C. Henry
Southeast Asia Petroleum Exploration Society (SEAPEX)
... as scintillation detectors, so named because they generate flashes of light when struck by gamma rays. These “new detectors” which were developed over...
1998
Improved Density Log Lithology Identification Using a Borehole-Compensated Photoelectric Factor
G. L. Moake, W. E. Schultz
Indonesian Petroleum Association
... Lithology Logging with Gamma Rays," Geophysics, Vol. 46, No. 10, 1439-1455, October 1981. 3. D. Ellis, D. Flaum, C. Roulet, E. Marienbach, and B. Seeman...
1987
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
... rays and accounts for vertical and lateral velocity gradients, allowing modelled travel time curves to accurately match those recorded in the CMP gathers...
2000
An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement
Andy Furniss
Petroleum Exploration Society of Australia (PESA)
.... Coherency inversion uses curved rays and accounts for vertical and lateral velocity gradients, allowing modelled travel time curves to accurately match...
1999
Biostratigraphy and Paleoecology of Diagnostic Invertebrates and Vertebrates from the Type Locality of the Oligocene Rosefield Marl Beds, Louisiana
Gary L. Stringer, Sylvester Q. Breard, Mervin Kontrovitz
GCAGS Transactions
..., Sharks and Rays: New York, NY, The Nature Company Guides, Time Life Books, 288 p. Tipsword, H. L., F. M. Setzer, and F. L. Smith, 1966, Interpretation...
2001
Wireline Geochemical Log Analysis of Thin Bed Reservoirs: Gulf of Mexico
R. V. Everett, J. E. Mc Donald, M. M. Herron
New Orleans Geological Society
... a detector that is on foot long (for example, the Natural Gamma Spectrometry service). Therefore, the elemental measurements result from gamma rays arriving...
1988
Definition, Identification, and Measurement of Normal and Abnormal Subsurface Pressures
Donald J. Timko, Lloyd C. Fons, William K. Grittman, Forest B. Rees
Houston Geological Society
... at a fixed distance from the source. The source emits gamma rays which interact with the electrons in the formation and continue on with diminished energy...
1971
PRELIMINARY ASSESSMENT OF COCCOLITHS FROM VENEZUELA; EVALUACION PRELIMINAR DE LOS COCCOLITOS DE VENEZUELA
Hugo Ancieta
Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)
... and are restricted to this period. The Cretaceous discoasters are distinctive because they usually have four rays or less, whereas the Tertiary forms...
1968
Modelo de Velocidades de Intervalo en Profundidad a partir de la Función de Difracción: Aplicación a Datos Reales [PAPER IN SPANISH] Depth Interval Velocity Model from a Diffraction Function: Application to Real Data
C. A. Ortega Galvis, L. A. Montes Vides
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... focusing of traced rays. INTRODUCCIÓN Durante el procesamiento se utilizan diferentes tipos de velocidades con el propósito de obtener una imagen del...
2004
Frequency vs Azimuth (FVAZ): the Younger Member of the Family of Seismic Driven Fracture Characterization Methods
Juan Tavella, Victoria Lazzari, Marcelo Frydman, Néstor Herrera
Unconventional Resources Technology Conference (URTEC)
... values of the azimuth 𝜓. Absorption does not change with incident angle for rays travelling on planes parallel to fracture while exhibits maximum...
2023
History of Radium-Uranium Mining in the Plateau Province
R. Clare Coffin
Utah Geological Association
... by Roentgen, who found that the glow from a Crooke’s tube contained penetrating rays which he called X-rays. Others worked with these strange phenomena...
1954
Induced seismicity hypocentral depth stability and sensitivity to Vp/Vs in the South Delaware Basin, West Texas
Alexandros Savvaidis, Anthony Lomax, Robin Dommisse, Caroline Breton, Matthew Shirley, Vincent OSullivan
International Meeting for Applied Geoscience and Energy (IMAGE)
... preserving vertical travel-time (Figure 3). This “modified” model produces travel-times to nearby stations (along near vertical rays) similar to those...
2022
Anisotropic Depth Migration Applied in an Area of the Colombian Llanos Foothills as a Tool for Understanding the Structure in Depth
Isabel Cristina Florez, Rob Vestrum
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
..., 1999). shale bedding is higher than the velocity perpendicular to bedding, rays from the eastern or updip side of the structure will travel...
2006
Wave Power Gradient: An Approach to Holocene Depositional History
R. S. Murali
GCAGS Transactions
... water wave height of 40 cm. were used. The wave rays were run at a grid spacing of 800 m. each, and a plan map of the shoreline was obtained for each...
1973
Portable X-ray diffraction for unconventional and conventional petroleum exploration
Dane Burkett
Petroleum Exploration Society of Australia (PESA)
...-discriminating CCD detects X-rays that have diffracted and fluoresced (Fig. 1), thus producing a 2D diffraction pattern (circumferentially summed in a 1D...
2018
Research and application of diffraction imaging based on the full-azimuth angle migration
Shengtao Zang, Xingrong Xu, Zhe Yang, Yanxiang Wang, Jiaqing Sun
International Meeting for Applied Geoscience and Energy (IMAGE)
... into local plane waves to indicate the characteristic of the propagation direction of the wave. The direction of incident and scattered rays...
2024
Managing uncertainty to deliver complex development wells
Peter van Ruth, Manish Agarwal, Scott Gagen
Petroleum Exploration Society of Australia (PESA)
... is based on tomographic principles in which depth errors are converted to time errors along zerooffset rays to calculate the error in the velocity model...
2019
Red Bed Coloration
George L. Robb
Journal of Sedimentary Research (SEPM)
... characteristic lines pointing to the presence of hematite in the sample. The second sample analyzed by x-rays was made up of biotite flakes with red material...
1949
Perspective of Isolated Carbonate Buildups for Hydrocarbons Exploration Targets in Menjangan Island, Bali, Indonesia
Kevin Muster Regulus Victor, Muhammad Bima Perkasa Alam, Delyuzar Ilahude
Indonesian Petroleum Association
... other information is needed and some other methods need to be employed, such as carbon and oxygen isotopes study, X-rays diffraction, magnetics, well...
2016