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The AAPG/Datapages Combined Publications Database

Showing 6,082 Results. Searched 200,636 documents.

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Geochemical and micropaleontological evidence of paleoenvironmental change in the Late Cretaceous Western Interior Seaway from the Niobrara to the Pierre Shale Formation

Kira K. Timm, Stephen A. Sonnenberg

Rocky Mountain Association of Geologists

... Seaway, south-central Wyoming: AAPG Bulletin, v. 71, p. 859–881.   146 ANALYTICAL METHODS 147 RESULTS AND DISCUSSION 153 CONCLUSIONS 172...

2018

Biogeochemical Reactions in a Diffusion-limited Zone Around Wellbore Cement Relevant to Underground Hydrogen Storage

Christopher Rooney, Qingyun Li

Unconventional Resources Technology Conference (URTEC)

... of different oxidation states at a micron scale resolution, which is hard to obtain by other methods such as SEM-EDS. S maps of cement samples were collected...

2023

Diagenetic Transformation of Dolomite into Stevensite in Lacustrine Sediments from Jbel Rhassoul, Morocco

Azeddine Chahi , Philippe Duringer , Mohamed Ais , Mohamed Bouabdelli , Francois Gauthier-Lafaye , Bertrand Fritz

Journal of Sedimentary Research (SEPM)

... of diatom frustules (Badaut and Risacher 1983; Risacher 1992). METHODS In the field, sedimentological studies were made on the rhassoul facies...

1999

Nanoindentation on Fluid-altered Shale and Implications for Proppant Embedment

Qingyun Li, Cormac Killeen, Jason Trelewicz, Wei Xiong

Unconventional Resources Technology Conference (URTEC)

... geothermal systems, and gas storage in unconventional reservoirs. Methods Shale samples Three Marcellus shale samples were reacted with water-based fluids...

2023

A Multiscale Method for Characterizing Shales by Downscaling and Upscaling Statistically Sampled Datasets from Multiple Imaging Modalities; #41868 (2016)

Sreenivas Bhattiprolu, Andy Steinbach, Benjamin Tordoff

Search and Discovery.com

... methods fail at identifying rock types. Lithology Map A B End trim from a 1” core plug was imaged using secondary electrons (SE) on an SEM. The SEM-SE...

2016

Quartz Cement in Upper Jurassic Brora Formation Sandstone: What Electron Backscatter Diffraction Reveals about Microquartz Coatings

Sasha C. Haddad, Richard H. Worden, David Prior, Craig Smalley

Search and Discovery.com

... cement; in some cases, even on the same grains. This study combined the use of SEM techniques, including CL and EBSD, in order to address the occurrence...

Unknown

U-Series, Oceanographic and Sedimentary Evidence in Support of Recent Formation of Phosphate Nodules off Peru

W. C. Burnett, H. H. Veeh, A. Soutar

Special Publications of SEPM

... phosphorites as deduced by uranium The various assumptions and series methods rationale towards that end were presented in sea are interpret...

1980

Numerical Simulation the Supercritical CO2 Sequestration in Shale Gas Reservoir with Enhanced Gas Recovery

Yulong Zhao, Liehui Zhang, Ruihan Zhang, Shengnan Chen, Yu Pang, Ruihe Wang

Unconventional Resources Technology Conference (URTEC)

... because of different defects. Methods In this paper, the absolute adsorption isotherms of CH4 and CO2 on two Longmaxi core samples are shown in Figure 1...

2020

Measurement of Independent Variables - Composition

Peter T. Stanton, Michael D. Wilson

Special Publications of SEPM

..., cathodoluminescent microscopy (CL), back scattered electron/scanning electron microscopy (BSE/SEM), or microprobe analysis. Image analysis is based...

1994

Sem Observations on Some Sand Fulgurites from Northern Australia

Kenneth Pye

Journal of Sedimentary Research (SEPM)

... suggests cooling of the molten glass without internal constriction. CONCLUSIONS SEM examination has provided a valuable adjunct to conventional methods...

1982

Composition and Genesis of Temperate, Shallow-Marine Carbonate Muds: Spencer Gulf, South Australia

Laura G. O'Connell, Noel P. James

Journal of Sedimentary Research (SEPM)

... of Spencer Gulf expands on the methods of El-Sammack by implementing XRD mineralogical analysis and additional SEM point-counting techniques (similar...

2015

Sedimentology of the Joulters Cays Ooid Sand Shoal, Great Bahama Bank - Introduction to Appendices

P.M. (Mitch) Harris

Search and Discovery.com

... Tides Geochemistry B Methods of Study Climatological data Mapping Bottom Description and Sediment Sampling Sediment Sieving Sediment Thin section (Grain...

1977

Fracture characterization using rotary-drilled sidewall cores: an example from the Ellenburger Formation, West Texas

L. A. Gomez, J. F. W. Gale, S. C. Ruppel, S. E. Laubach

West Texas Geological Society

... in well A. Petrographic analysis A combination of conventional petrography, SEM-based cathodoluminescence (SEM-CL), and SEM-based energy-dispersive...

2001

Workshop: Blue Gem Geochemistry

James Hower

The Society for Organic Petrology (TSOP)

... in the production of silicon metal Blue Gem geochemistry • Methods • Density gradient centrifugation, without demineralization, of selected lithotypes...

2021

Chapter 6: Pyritization History in the Late Cambrian Alum Shale, Scania, Sweden: Evidence for Ongoing Diagenetic Processes

Neil S. Fishman, Sven O. Egenhoff, Heather A. Lowers, Adam R. Boehlke, Per Ahlberg

AAPG Special Volumes

...., 2013). METHODS Petrographic examination (transmitted and reflected light microscopy) was undertaken on ultrathin (~20 μm thick) polished thin sections...

2019

Pore-to-regional-scale Integrated Characterization Workflow for Unconventional Gas Shales

Roger M. Slatt, Paul R. Philp, Younane Abousleiman, Prerna Singh, Roderick Perez, Romina Portas, Kurt J. Marfurt, Steven Madrid-Arroyo, Neal O'Brien, Eric Eslinger, Elizabeth T. Baruch

AAPG Special Volumes

... correlation of time and facies: AAPG Methods in Exploration Series 7, p. 55. Recent discoveries of potentially vast global gas resources locked in shales...

2012

Source potential and reservoir characterization of the Cambay Shale, Cambay Basin, India: Implications for tight gas and tight oil resource development

Mateen Hafiz, Naveen Hakhoo, Ghulam M. Bhat, Sudeep Kanungo, Bindra Thusu, Jonathan Craig, and Waquar Ahmed

AAPG Bulletin

... Silurian black shales in the Chuandong Thrust Fold Belt, Southwestern China using low pressure N2 adsorption and FE-SEM methods: Marine and Petroleum...

2020

Feldspar dissolution-enhanced porosity in Paleoproterozoic shale reservoir facies from the Barney Creek Formation (McArthur Basin, Australia)

Elizabeth T. Baruch, Martin J. Kennedy, Stefan C. Löhr, and David N. Dewhurst

AAPG Bulletin

... in XRD pyrite abundance, however, were not recognized during SEM image analysis suggesting variability is sampling related. The EM mineral maps confirm...

2015

Significance of the Boring Sponge Cliona for the Origin of Fine Grained Material of Carbonate Sediments

Dieter K. Futterer

Journal of Sedimentary Research (SEPM)

... of the limited potential of the light optical methods. Through development of new methods using a scanning electron microscope (SEM) the fine fractions are now...

1974

Looking Down the Wellbore

David Macdonald, Dave Healy, Graham Webber

GEO ExPro Magazine

... of Petrophysics Specialist petrophysics may involve development of new logging tools or interpretation methods; support for geophysical studies of rock properties...

2014

New Frontiers in Salt Research; #80706 (2019)

Peter A. Kukla, Janos L. Urai, Frank Strozyk

Search and Discovery.com

... analysis to quantify tectonic stress Methods: → Development of microanalytical LA-ICP-MS methods for salt minerals → Triple-halogen (Cl, Br, I) analysis...

2019

Mechanisms of Organic/Inorganic Interactions in Sandstone/Shale Sequences

Ronald C. Surdam, Laura J. Crossey

Special Publications of SEPM

... blocked with reaction products, and no effective porosity enhancement occurs. 177 Our FIGURE 3-1. SEM photomicrograph of a corroded dolomite grain from...

1985

Oxygen Isotopic Analysis of Diagenetic Quartz Overgrowths from the Brent Sands: A Comparison of Two Preparation Methods

J. F. Brint , P. J. Hamilton, R. S. Haszeldine, A. E. Fallick, S. Brown

Journal of Sedimentary Research (SEPM)

...Oxygen Isotopic Analysis of Diagenetic Quartz Overgrowths from the Brent Sands: A Comparison of Two Preparation Methods J. F. Brint , P. J. Hamilton...

1991

Composite Particles in Mudstones: Examples from the Late Cretaceous Tununk Shale Member of the Mancos Shale Formation

Zhiyang Li, Juergen Schieber

Journal of Sedimentary Research (SEPM)

.... In this study, the Tununk Shale in Utah has been examined by optical and scanning electron microscopy (SEM) to determine how variations...

2018

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