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The AAPG/Datapages Combined Publications Database
Showing 1,444 Results. Searched 200,691 documents.
Mapping in Microns
Shane Butler, Blaise Mibeck, Bethany Kurz, Alexander Azenkeng
GEO ExPro Magazine
... acquired (and subsequent x-rays) are automatically passed to the software for further processing. Each image frame is then divided into several thousand...
2020
Tidal-flat to Shallow-shelf Deposits in the Cap Mountain Limestone Member of the Riley Formation, Upper Cambrian of Central Texas
David T. King, Jr., Henry S. Chafetz
Journal of Sedimentary Research (SEPM)
... approximately 2.5 mm long bearing a whorl of 4 to 7, typically 6, side rays attached at an angle of 45° to 90° to the central ray. The central ray contains...
1983
Synthetic Seismic-Reflection Profiles of Rift-Related Structures
Martha O. Withjack , D. J. Drickman Pollock
AAPG Bulletin
...-incident rays from the deep sections of the fault surfaces pass t rough proportionately more high-velocity rock than those from the shallow sections...
1984
Aragonite-Calcite Relationships in Speleothems (Grotte De Clamouse, France): Environment, Fabrics, and Carbonate Geochemistry
Silvia Frisia, Andrea Borsato, Ian J. Fairchild, Frank McDermott, Enrico M. Selmo
Journal of Sedimentary Research (SEPM)
... aragonite rays. Commonly, the replacement phase inherited the textural and chemical characteristics of the precursor aragonite prisms and needles...
2002
Integrated Petrophysical Formation Evaluation Using Capture Spectroscopy and NMR on an Exploration Well, South Sumatra
ZhanGuo Shi, Mario Petricola, PingZai Wang
Indonesian Petroleum Association
... for radioactive shaly sands. Gamma rays are bursts of high-energy electromagnetic waves that are emitted spontaneously by some radioactive elements...
2005
Preliminary Note on the Paleocene Elasmobranchs of the Lodo Formation, Fresno County, California
Bruce J. Welton
Pacific Section SEPM
... denticles, a n d teleost (bony fish) otoliths (ear stones). Eleven genera within 9 families of sharks and rays are tentatively recognized; of w h i c...
1974
Enhanced Oil Recovery in Vaca Muerta Shale-Oil Could Kick Production with Good Economics
J.E. Juri, Isabel Vega
Unconventional Resources Technology Conference (URTEC)
... the following objectives: 1. Indicate the general nature of the nano-scale voidage within the shale. 2. Use Energy Dispersive X-rays to locate where...
2020
Fish feeding traces from middle Eocene limestones (Gargano Promontory, Apulia, southern Italy)
Matteo Belvedere, Marco Franceschi, Michele Morsilli, Pietro Luigi Zoccarato, Paolo Mietto
PALAIOS
... fishes (e.g., sturgeons) than with rays. The trace fossils are here attributed to the ichnogenus Piscichnus and constitute the first discovery...
2011
Interpretive Well Logging Concepts Assist South Texas Formation Evaluation Problems
Walter H. Fertl
GCAGS Transactions
... reported for the exploration activities in the Mackenzie delta, Canada, by Evans et al. (1975). GAMMA RAY SPECTRAL LOGGING APPLICATIONS Gamma rays...
1979
Imaging Subsurface Structures Under Gas Clounds by Multi-Component Technology
Xiaogui Miao, Loh Fong Cheen, Libo Zi, Jing Du, Magali Beele, Jacques Bonnafe, Natalia Anggriani, Gilles Vallon, Claudio Strobbia
Indonesian Petroleum Association
... domain PSTM (straight rays, bent rays and anisotropic) 4th order NMO picking and application HTI anisotropic residual NMO analysis and compensation...
2014
Coincidence of Radiometric Anomaly with Surface Petroleum near Sale, East Gippsland, Victoria
I. C. F. Stewart, B. L. Dickson, G. M. Taylor, M. J. Deuter, R. J. Annells, J. N. Mulready
Petroleum Exploration Society of Australia (PESA)
... m standard 234Th Pb X-rays 6000 214Pb 210'b 4000 2000 60 120 179 239 299 358 418 Gamma-ray energy (keV) Fig. 12. Gamma-ray spectrum...
2002
The Nature and Significance of Condensed Sections in Gulf Coast Late Neogene Sequence Stratigraphy
Bernard L. Shaffer
GCAGS Transactions
... rare, late forms of Discoaster brouweri characterized by thin, delicate rays and a relatively small central area, and of Globorotalia praehirsuta...
1990
A Critical Review on Characterization and Development Techniques for Low-Resistivity Pays across Indonesias Prominent Basins
Dimas Naufal Al Ghifari, Julianta P. Panjaitan, Muhammad Najmi Hafiy, Yudha Arisandhy S., Habib Luthfi Ash-Shiddiqie
Indonesian Petroleum Association
... to determine oil-water saturation. This tool works by emitting gamma rays that will produce a spectrum that can determine the content of hydrocarbons (C...
2024
Preliminary Evaluation of a Core Scintillation Counter for Bulk Density Measurement in Marine Sediment Cores
Chester Brier , Robert Bennin , Peter A. Rona
Journal of Sedimentary Research (SEPM)
... by direct transmission of gamma rays: Am. Soc. Test. Mater. Proc., v. 55, p. 1199-1223. BERRY, P. F., 1961, Gamma-ray attenuation coefficients: Nucleonics, v...
1969
Miocene Paleoecology in the Burkeville Area Newton County, Texas
D. N. Floyd, T. H. Miller, W. B. N. Berry
GCAGS Transactions
.... Diatoms and charophyte oogonia were also present. In addition to the microfauna, the estuarine sediments enclosed remains of sea-cows, turtles, rays...
1958
VSP: Lessons from Numerical Simulation
M. Suprajitno, S. A. Greenhalgh
Indonesian Petroleum Association
... into the calculations. Mode converted arrivals can also be generated with relative ease. The technique is practical in the sense that no rays need...
1985
Strike Line Methodology as an Optimization to Exploring in Fold and Thrust Belts
B. A. Blake, D. Figueroa, A. Otero, R. Manceda, W. Prayitno
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... in areas of very steep dip (>70°) where we have demonstrated the presence of turning rays (Blake, et al., 1999b). The geologist and geophysicist analyze...
2003
Chapter 2
Mark W. Longman
AAPG Special Volumes
... logs superimposed on a single log track. One of these is the formation density log which uses a shielded sidewall skid to emit gamma rays...
1981
Estimating Stimulation-Zone Anisotropy Effects During Microseismic Monitoring
Martin Karrenbach, Steve Cole, Victor Yartsev
Unconventional Resources Technology Conference (URTEC)
... using the initial velocity model. Rays originating from the center of each stage and propagating above and below the treatment level to the top...
2015
Evaluation of Coal Bed Methane Reservoirs (CBM) Using a Down-Hole Geo-Chemical Tool
Haris Kurniawan Hidayat, Udit Kumar Guru
Indonesian Petroleum Association
... can ensure that we measure results of one or the other type of reaction. With the geo-chemical tool (GT) the majority of the gamma rays measured...
2011
Combined Thermal Multi-Gate Decay Lithology Log and Open-Hole Log Applications to Strengthen Testing Justification in a Blind Drilling, Exploration Well Case, North Sumatra Basin
Nadia Nurul, Azazi Daulati, Gumelar, Maranu Ricardo, Ferry F Baskaraputra, Joan C L Tobing, Mahadevan S Iyer
Indonesian Petroleum Association
... are eventually thermalized and captured. As a result, large numbers of gamma rays and energy downgraded neutrons are produced and can be detected...
2014
Analysis of geologic structures using deep sonic imaging
Nobuyasu Hirabayashi, Leon Dahlhaus, Rajeev Kumar, Jeroen Jocker, Erik Wielemaker, Manish Lal Khaitan, Charles Naville
International Meeting for Applied Geoscience and Energy (IMAGE)
... Rays Normal Trial-reflector θtool = (i + N/2 + 1/2) ∆θ , (4) where i is the azimuth index of receiver (i ≥ 0), Ns is the number of half azimuths...
2024
Drillhole rugosity correction for gamma-gamma density tools A space modelling approach
Dragos Gavriliu, James Batchelor
Petroleum Exploration Society of Australia (PESA)
... fluid, water or air sitting between the formation and the source or detector and in the path of gamma rays. Key words: applied borehole rugosity...
2019
Estimation of Seismic Attenuation in the Delaware Basin Using Peak Frequencies
Małgorzata Drwiła, Leo Eisner, Zuzana Jechumtalová, Denis Anikiev, Randy Keller
Unconventional Resources Technology Conference (URTEC)
... s of traveltime as corresponding to rays sampling only the Delaware Basin, where the ray paths are travelling only through the sediments. For smaller...
2018
Guide to Dia Met Minerals Diamond Recovery Plant Near Sloan Ranch, Colorado
Michael A. Waldman
Wyoming Geological Association
... to 10-35,000,000 parts host). Diamonds have a specific gravity of 3.52, are hydrophobic (non-wettable), and most fluoresce when irradiated by x-rays...
1991