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The AAPG/Datapages Combined Publications Database
Showing 6,051 Results. Searched 200,630 documents.
Volcanic Glass Transformation Types and Their Relationship with the Basins Parameters: A Case Study of the Rupea Tuffs (Transylvanian Basin) and Govora Tuffs (Dacian Basin), #50397 (2011)
Georgiana Popescu, Irina Chiciudean, and Barbara Soare
Search and Discovery.com
... the Tortonian (depositional moment of the Rupea tuffs and Govora tuffs). The method used is X-ray powder diffraction. The results show different transformation...
2011
Mineralogical Estimation of Organic Rich Mudrocks from Well Logs Using Neural Networks: Overcoming Training Dataset Size Limitation by Integrating X-Ray Fluorescence Elemental Data; #42458 (2019)
Mustafa Al Ibrahim, Tapan Mukerji, Allegra Hosford Scheirer
Search and Discovery.com
... at different scales. X-ray diffraction can be used but it is relatively slow and expensive. Neural networks can be used but they require a relatively large...
2019
New technologies for seismic resolution enhancement and bandwidth expansion: Applications in SE Asian Basin
Yasir Bashir, Abdul Halim Abdul Latiff, Muhammad Sajid
Geological Society of Malaysia (GSM)
... inelastic absorption, and acquisition filters. Diffraction is a common phenomenon observed in seismic data recordings, especially in carbonate reservoirs...
2024
Moganite as an Indicator for Vanished Evaporites: A Testament Reborn?
Peter J. Heaney
Journal of Sedimentary Research (SEPM)
... reliability. This study provides evidence that lutecite actually is a newly recognized mineral called moganite. Powder X-ray diffraction studies reveal...
1995
The Gabbroic Suite and Associated Hornfelses of Bukit Kemuning, Trengganu, Peninsular Malaysia
S. Chandra Kumar
Geological Society of Malaysia (GSM)
... compositions were determined from 2V or when measured, using the curves of Hess (1960, p. 27). Clinopyroxene compositions have been obtained by plotting...
1980
The Geophysical Aspects of Abnormal Fluid Pressures
Edward B. Reynolds, John E. May, Alf Klaveness
Houston Geological Society
... be done with care (Shugart, 1969, p. 10). Faulting Faulting can either increase or decrease RMS velocities because of additional diffraction and refraction...
1971
A hybrid machine learning model for improving regression of mineral composition estimation using well logging data
Xiaojun Liu, Kezhen Hu, Stephen E. Grasby, Benjamin Lee
International Meeting for Applied Geoscience and Energy (IMAGE)
... data analysis in recent years, such as predicting missing logging curves (Wu, 2021), well correlation, and facial recognition (Bakdi et al., 2020...
2024
Holocene Coral Reef on Kauai, Hawaii: Evidence for a Sea-Level Highstand in the Central Pacific
Anthony T. Jones
Special Publications of SEPM
... and filamentous algae Subsequent examination by X ray diffraction for signs of diagenetic al teration showed that all samples were greater than 98 per...
1992
Surficial Sediments Of Boston Harbor, Massachusetts (1)
Ely Mencher , R. A. Copeland, H. Payson, Jr.
Journal of Sedimentary Research (SEPM)
... of the 20-62 µ fraction shows it to be almost entirely angular vitreous quartz. Little black carbonaceous material is present. X-ray diffraction studies un...
1968
Improving the Accuracy of Nuclear Spectroscopy Logs in the Permian Basin by Calibrating Elemental Composition with Mixed-Lithology Core Chemistry
Hernan Mora, Weijun Guo, Yasin Abulaiha, Haijing Wang, Michael Cheshire, Aygul Kostinovsky, Luisa Crousse, Mason Edwards, Bobby Kurniawan
Unconventional Resources Technology Conference (URTEC)
..., and fitting errors are the most critical quality control curves for geochemical logging. Figure 4. Existing workflow for nuclear spectroscopy log...
2025
A Geology-Based, Non-Seismic Attribute Method to Generate Facies, Lithology, and Petrophysical Parameters in the Chinook and Cascade Fields, Walker Ridge, Gulf of Mexico, USA
Elizabeth Ann Watkins, Julio Tamashiro, Marcelo Cristian Torrez Canaviri, Nicolas Martin, Eldar Guliyev, Renato Leite, Nhom Vince Nguyen, Abayomi Aina, Mauro R. Becker
GCAGS Transactions
... in the model. Petrophysics Petrophysical curves used in the geologic model were calculated primarily from the gamma ray, resistivity, and density neutron...
2015
References Cited: Part 5. Laboratory Methods
AAPG Special Volumes
... for measuring oil-water relative permeability curves at reservoir conditions: 56th Annual Fall Technical Conference and Exhibition of the Society...
1992
18O Variations in the Halimeda of Virgin Islands Sands: Evidence of Cool Water in the Northeast Caribbean, Late Holocene
Charles W. Holmes
Journal of Sedimentary Research (SEPM)
... Cenozoic glacial ages: New Haven, Connecticut, Yale Univ. Press, p. 355-380. BLOOM, A. L., 1979, Atlas of Sea Level Curves, IGCP Project 61: Ithaca...
1983
Chemostratigraphy of Upper Cretaceous Chalk in the Danish Subbasin
Niels Oluf Jorgensen
AAPG Bulletin
...: Geological Survey of Denmark, v. 2, no. 71, 68 p. Dypvik, H., 1981, Drilling mud contamination of samples in x-ray diffraction and atomic absorption...
1986
High Production and Highstand Shedding from Deeply Submerged Carbonate Banks, Northern Nicaragua Rise
Karen S. Glaser, Andre W. Droxler
Journal of Sedimentary Research (SEPM)
... Bomb and for carbonate mineralogy by X-ray diffraction (detailed methods can be found in Droxler et al. 1988). Carbonate mineralogic data are plotted...
1991
The Goddard Shale in the eastern Anadarko Basin: Understanding an exceptionally productive mudrock reservoir with fluid-sensitive clay
Justin D. Spears and Jack C. Pashin
AAPG Bulletin
... to identify rock fabrics, sedimentary structures, and fossils. X-ray diffraction (XRD), x-ray fluorescence, Rock-Eval pyrolysis, total organic carbon (TOC...
2022
A New Approach To Quantify the Ordering State of Protodolomite Using XRD, TEM, and Z-Contrast Imaging
Yihang Fang, Huifang Xu
Journal of Sedimentary Research (SEPM)
..., Saskatchewan, Canada, was examined using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Z-contrast...
2019
Carbonate Geochemistry of Superior Deep Test Well, Andros Island, Bahamas
H. G. Goodell , R. K. Garman
AAPG Bulletin
... analyzed for carbonate mineralogy by X-ray diffraction and for strontium by X-ray fluorescence. Samples from contemporary Bahama marine sediments and from...
1969
Geochemical interactions of shale and brine in autoclave experiments—Understanding mineral reactions during hydraulic fracturing of Marcellus and Eagle Ford Shales
Jiemin Lu, Patrick J. Mickler, Jean-Philippe Nicot, Wanjoo Choi, William L. Esch, and Roxana Darvari
AAPG Bulletin
.... Bish, D. L., 1994, Quantitative x-ray diffraction analysis of soil, in Amonette, J. E., and L. W. Zelazny, eds., Quantitative methods in soil...
2017
Application of a deep-water stratigraphic framework to the production of the Wolfcampian units in the Permian Basin
Daniel Minisini and Patricio Desjardins
AAPG Bulletin
... (9300 km2 [35,900 mi2]), describing 29 cores, integrating 11 lithofacies and 15 petrofacies with core analyses (gamma ray, x-ray diffraction, total...
2024
Aspects of Rock Physics From Laboratory and Log Data that are Important to Seismic Interpretation: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data
A. R. Gregory
AAPG Special Volumes
...., 1966, Ultrasonic diffraction loss and phase change in anisotropic materials, Acous. Soc. America Jour., v. 40, p. 863-876. Podio, Augusto L., 1968...
1977
Carbon dioxide sealing capacity: Textural or compositional controls? A case study from the Oklahoma Panhandle*
Constantin Cranganu and Hamid Soleymani
Environmental Geosciences (DEG)
... (SEM), Sedigraph energy dispersive spectra (EDS), x-ray diffraction (XRD), Brunauer–Emmett–Teller-specific surface area, and total organic carbon...
2015
Application of Nuclear Spectrometry to Formation Geochemical Evaluation
G. Mathieu, J. Roestenburg
Indonesian Petroleum Association
... in the field recording. An example of environmental correction curves is shown on Figure 3. When the total porosity increases, or when the formation capture...
1988
Extraction of Oil from the Bakken Shales with Supercritical CO2
Lu Jin, Steven Hawthorne, James Sorensen, Lawrence Pekot, Bethany Kurz, Steven Smith, Loreal Heebink, Nicholas Bosshart, José Torres, Chantsalmaa Dalkhaa, Charles Gorecki, Edward Steadman, John Harju
Unconventional Resources Technology Conference (URTEC)
... detected in the samples through x-ray diffraction (XRD) analysis. High-pressure mercury injection tests showed that pore throat radii are less than 10...
2017
Laboratory Evaluation of Apparent Conductivity of Ultra-Fine Particulates
Janette Cortez-Montalvo, Ubong Inyang, Ron Dusterhoft, DanDan Hu, Maria Apostolopoulou
Unconventional Resources Technology Conference (URTEC)
... before and after UFP treatment was studied using computed tomography (CT) scans, and X-ray diffraction quantitatively assessed reservoir rock...
2018