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The AAPG/Datapages Combined Publications Database

Showing 2,890 Results. Searched 200,357 documents.

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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

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