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The AAPG/Datapages Combined Publications Database
Showing 2,890 Results. Searched 200,357 documents.
An immersed absorbing boundary condition for scalar wavefield modeling under topography
KeJi Chen, Hanming Chen, Hui Zhou
International Meeting for Applied Geoscience and Energy (IMAGE)
... and the wavefield prediction is implemented along the normal direction of the surface, which means wavefield absorption along the normal direction. Numerical...
2022
Simple Method of Distinguishing Zircon, Monazite, and Xenotime: NOTES
O. H. Hering, W. Zimmerle
Journal of Sedimentary Research (SEPM)
...-spectroscopic observations: Philadelphia Acad. Nat. Sci. Proc., 1911, p. 106-116. KEELEY, F. J., 1928, Notes on absorption spectra of certain minerals...
1963
X-Radiography of Rocks with I-125 Source: GEOLOGICAL NOTES
Malcolm P. Weiss
AAPG Bulletin
.... With a source-sample distance of 12.5 cm., the exposures listed in Table I seemed most appropriate. For samples in which the X-ray absorption is rather...
1966
Significance of Strontium Distribution in Some Carbonate Rocks in the Carboniferous of Northumberland, England
Wissam S. Al-Hashimi
Journal of Sedimentary Research (SEPM)
... dedolomitized dolostones show that the strontium content of dolostones suffered a considerable loss during dedolomitization (Sr = 95 ± 26 ppm, mSr2+/mCa2...
1976
Tectonically Controlled Freshwater Carbonate Cementation in Chalk
Ya'acov Mimran
Special Publications of SEPM
... the interest of the mechanism of absorption of faulting by soft chalk, and in the diagenetic processes associated with such absorption. Metlmis o Stlrrl\. f Six...
1985
Geochemical Identification of Unconformities Using Semi-quantitative X-ray Fluorescence Analysis
M. B. Al-Gailani
Journal of Sedimentary Research (SEPM)
.... Na2O results are inconclusive due to the high matrix absorption ratio of Na. P2O5 is a good indicator of phosphatization in carbonate rocks...
1980
Carbon Isotopic Compositions of Petroleums and Other Sedimentary Organic Materials
Sol R. Silverman , Samuel Epstein
AAPG Bulletin
..., the extracts were combusted in the manner described previously for preparation for C-13/C-12 analysis. In addition, the infrared absorption spectrum...
1958
The Impact of the Fracturing Additives on the Near Fracture Face Matrix Permeability for Shale and Low Permeability Sand Formations
Aymen A. Al-Ameri, Talal D. Gamadi, Lloyd Heinze, Ion Ispas, Sheldon Gorell
Unconventional Resources Technology Conference (URTEC)
... both of the fluid flowback and fluid loss into the formation and the reverse is true for the friction reducer with a nonionic surfactant fluid and 3 wt...
2018
Tracer Eluting Proppants for Shale Fracturing
Bochao Zhao, Krishna Panthi, Kishore K. Mohanty
Unconventional Resources Technology Conference (URTEC)
... as a function of time. Rhodamine 6G has a significant absorption peak around 530 nm. Based on the absorption value, URTeC 478 4 rhodamine concentration can...
2019
Petrographic Features of Sandstones that Affect Their Suitability for Road Material
Robert J. Yedlosky, John R. Dean
Journal of Sedimentary Research (SEPM)
.... This empirical test consists of deducing the absorption rate of a sandstone by measuring the diameter of an expanded drop of alcohol on a surface...
1961
Relative Reactivity of Skeletal Carbonates During Dissolution: Implications For Diagenesis
Lynn M. Walter
Special Publications of SEPM
... to selective loss of the most unstable phases, the magnesian calcites. Mineralogic stability doubtless plays a significant role in the relative rates...
1985
Evaluating the suitability of shallow aquifer for irrigational purposes in some parts of Kelantan, Malaysia
Mohammad Muqtada Ali Khan, Kishan Raj Pillai A/l Mathialagan, Aina Mardhiya, Zakiyah Ainul Kamal, Hafzan Eva Mansor
Geological Society of Malaysia (GSM)
... absorption ratios or SAR (Muthulakshmi et al., 2012). Besides, calcium concentration may also impact the irrigation process in certain area as high...
2018
ABSTRACT: Reflected Light Microscopy and Transmission Micro-FTIR of Alginite in Relation to Petroleum Generation, Upper Ordovician Kukersites, Saskatchewan, Canada
L.D. Stasiuk, B.D. Kybett, S.L. Bend
The Society for Organic Petrology (TSOP)
...ABSTRACT: Reflected Light Microscopy and Transmission Micro-FTIR of Alginite in Relation to Petroleum Generation, Upper Ordovician Kukersites...
1992
Early Diagenesis of Sediments and their Interstitial Fluids from the Continental Slope, Northern Gulf of Mexico
Douglas Perry
GCAGS Transactions
... mainly the loss of water through compaction, and the loss of dissolved sulfate through bacterial action. Near salt domes, interstitial waters have...
1970
Fascicular-optic Calcite: A Replacement of Bundled Acicular Carbonate Cements
A. C. Kendall
Journal of Sedimentary Research (SEPM)
... crystals, followed by subsequent stabilization (calcitization or magnesium loss). BATHURST, R. G. C., 1959, The cavernous structure of some Mississippian...
1977
Modeling of scattering losses using energy transport
Manuel Alejandro Jaimes Caballero, Roel Snieder
International Meeting for Applied Geoscience and Energy (IMAGE)
... and intrinsic absorption) properties of the medium and the wave propagation, and is therefore suitable to study the quality factor Q. In radiative...
2022
Comparison of Quantitative Mineral Analysis By X-Ray Diffraction and Fourier Transform Infrared Spectroscopy
Paul R. Craddock, Michael M. Herron, Susan L. Herron
Journal of Sedimentary Research (SEPM)
... seconds each. Absorption spectra are computed automatically from the measured transmission spectra. The far-IR and mid-IR absorption spectra may...
2017
Identification of Short-Term Changes in Sediment Depositional Rates: Importance in Environmental Analysis and Impact Investigations
Wayne C. Isphording , F. Dewayne Imsand , Gregory W. Isphording
GCAGS Transactions
... efficiency loss. Blake, A., 1978, Engineering Geology of a Selected Area in Baldwin County, Alabama: M.S. Thesis, Department of Geology...
1984
Reservoir Sensitivity to Water Flooding: An Experimental Study of Seawater Injection in a North Sea Reservoir Analog
B. T. Ngwenya, S. C. Elphick, G. B. Shimmield
AAPG Bulletin
... to the near-injector area, leading to loss of injectivity; however, the net effect on productivity in a particular field will depend on the relative magnitude...
1995
Application of least squares one-way wave migration in irregular sampling data of Bohai Bay Basin
Lv Yongchang, Li Daoshan, Wang Yongming, Meng Jie, Feng Xukui, Hu Dan, Wu Xiaofeng, Kong Zhaoju
International Meeting for Applied Geoscience and Energy (IMAGE)
..., and the absorption attenuation of subsurface medium and other factors will also lead to the migration artifacts and the phenomenon of weak amplitude that should...
2022
Pulsed-Neutron Data as a Tool for Water Source Identification - Case Examples
Glen Ricky Himawan, Bancha Srikampha
Indonesian Petroleum Association
.... This is called neutron absorption; after each absorption, the nucleus of the atom releases a gamma ray with a specific energy. This gamma ray is called capture...
2019
Garcia Gas Field, Las Animas County, Colorado
Joseph R. Clair, B.B. Bradish
Rocky Mountain Association of Geologists
... wells were used for light and heat by ranches in the area, and no commercial use of the gas was made until 1934 or 1935 when a small gasoline-absorption...
1956
ABSTRACT: Physical Sorption of Gases: Implications for Resources, Reserves, and Production from Sorbed Gas Reservoir Systems; #90122 (2011)
Jeffrey R. Levine
Search and Discovery.com
... or the sorbent-sorbate interface may be treated thermodynamically as a distinct phase. Transition from the gas phase to sorbed phase entails a loss...
2011
Abstract: Quantitative Predication for Reservior Porosity via AVO; #90187 (2014)
Li Ang, Chen Shumin, Zhang Erhua, and Ju Linbo
Search and Discovery.com
... resolution include: first is the 60% -90% loss of seismic waves pass energy attenuation, and this part of the energy mainly includes the high-frequency signal...
2014
Abstract: Reflectivity Color Correction in Gabor Deconvolution; #90211 (2015)
Carlos Montana and Gary Margrave
Search and Discovery.com
... reflectivity tends to depart from the white noise behaviour by a loss of power at low frequencies, thereby termed blue reflectivity. The assumption...
2015