Results 51 to 60 of about 20,305 (226)

Sustainability problems of the Giza pyramids

Heritage Science, 2020
The Pyramids complex in Giza consists of three main pyramids in addition to the famous Sphinx and small queen’s pyramids. Recently, the pyramids of Cheops (Khufu), Chephren (Khafre) and Mykerinos (Menkaure) on the Giza plateau have been threatened by a ...
Sayed Hemeda, Alghreeb Sonbol
doaj   +1 more source

Importance of Microstructure in Carbonate Rocks: Laboratory and 3D-Imaging Petrophysical Characterization

Applied Sciences, 2021
Carbonate rocks are considered to be essential reservoirs for human development, but are known to be highly heterogeneous and difficult to fully characterize. To better understand carbonate systems, studying pore-scale is needed.
Marie Leger, Linda Luquot
doaj   +1 more source

How to Model Condensate Banking in a Simulation Model to Get Reliable Forecasts? Case Story of Elgin/Franklin [PDF]

, 2011
Imperial Users ...
Martinez, Lionel, Martinez, Lionel
core  

A Reproducible SEM Surface Imaging Protocol for Monitoring Microstructural Changes During Gas–Rock Interactions

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Reliable characterization of mineralogical and textural changes in rock samples is essential for understanding fluid–rock interactions, particularly in experimental studies simulating subsurface conditions. This study presents a reproducible protocol for scanning electron microscopy (SEM) analysis of rock surfaces before and after exposure to ...
Berta Ordóñez‐Casado, Timea Kovács, Sara Roces, Edgar Berrezueta   +3 more
wiley   +1 more source

Implications of heterogeneous embankment conditions for geoelectrical investigations on dams: A case study at Mactaquac Dam, Canada

Near Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) has been shown to be effective for surveying and monitoring dams, due to the method's sensitivity to moisture content and relevant physical properties (e.g., porosity). Automated ERT systems, capable of time‐lapse monitoring, can be used to detect variations in ground conditions.
John S. Ball, Karl E. Butler, Jonathan E. Chambers, Paul B. Wilkinson, Andrew Binley   +4 more
wiley   +1 more source

Micro-computed tomography pore-scale study of flow in porous media: Effect of voxel resolution [PDF]

, 2015
A fundamental understanding of flow in porous media at the pore-scale is necessary to be able to upscale average displacement processes from core to reservoir scale. The study of fluid flow in porous media at the pore-scale consists of two key procedures:
Boek, E, Crawshaw, J, Gray, F, Shah, SMK
core   +1 more source

Deep Groundwater Total Dissolved Solids Mapping in the Dakota Group, Williston Basin, USA

Groundwater, EarlyView.
Abstract Growing concern about the quantity of available freshwater around the world has led to interest in surveying groundwater total dissolved solids (TDS) below water well depths. Deep TDS has not been systematically mapped, and there is much to learn about the distribution and controls on deeper groundwater. In sedimentary basins across the United
Michael J. Stephens, Bennett E. Hoogenboom, Lyndsay B. Ball, Will Chang   +3 more
wiley   +1 more source

Effect of sedimentary heterogeneities in the sealing formation on predictive analysis of geological CO₂ storage [PDF]

, 2019
Numerical models of geologic carbon sequestration (GCS) in saline aquifers use multiphase fluid flow-characteristic curves (relative permeability and capillary pressure) to represent the interactions of the non-wetting CO2 and the wetting brine. Relative
Alkan, Amann-Hildenbrand, Amann-Hildenbrand, Anderson, André, Armitage, Bachu, Bastin, Bear, Bennion, Bielicki, Birkholzer, Birkholzer, Bloomfield, Brooks, Burnside, Cameron, Carsel, Class, Deng, Dewhurst, Dewhurst, Doughty, Ducellier, Folk, Handin, Harrington, Hayley Vosper, Hobbs, Howard, IEAGHG, IPCC, John D.O. Williams, Kaldi, Khan, Lenhard, Liu, Michael U. Onoja, Middleton, Miri, Mori, Newell, Nicot, Niemi, Noy, Okwen, Oldenburg, Onoja, Oostrom, Orlic, Orr, Peters, Rutqvist, Rutqvist, Schlumberger, Seedhouse, Seyed M. Shariatipour, Shariatipour, Shariatipour, Shukla, Smith, Standing, Stow, Van Genuchten, Vilarrasa, Williams, Yamamoto, Yang, Yang, Zhang   +69 more
core   +2 more sources

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

Meteoritics &Planetary Science, EarlyView.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis, L. Ferrière, C. Ma, J. Hu, D. Palles, P. D. Asimow   +5 more
wiley   +1 more source

Mineralogical modelling and petrophysical parameters in Permian gas shales from the Roseneath and Murteree formations, Cooper Basin, Australia

Petroleum Exploration and Development, 2016
To estimate the resources of Permian Roseneath and Murteree gas shales in the Cooper Basin, Australia, geochemical analysis, log interpretation and core analysis techniques were combined to conduct mineralogical modelling and define petrophysical ...
Quaid Khan JADOON, Eric ROBERTS, Tom BLENKINSOP, Raphael A.J. WUST, Syed Anjum SHAH   +4 more
doaj   +1 more source