Results 41 to 50 of about 75,613 (314)

UNICEF IWASH Project, Northern Region, Ghana : an adapted training manual for groundwater development [PDF]

, 2011
This report is an adapted training manual, with specific best practice recommendations for groundwater development practitioners working in the Northern Region, Ghana.
Beamish, D., Davies, J., MacDonald, A.M., O Dochartaigh, B.E.   +3 more
core  

De Rerum Natura: How Do Halide Perovskites Self‐Heal From Damage?

Advanced Materials, EarlyView.
How can lead‐halide‐perovskites self‐heal after damage from light, heat, mechanical strain, or radiation? We show that reversible chemical defects underly performance losses and recovery, highlighting the roles of halide and proton migration, redox‐driven reactions, and acid‐base equilibria.
Davide Raffaele Ceratti, Gary Hodes, David Cahen   +2 more
wiley   +1 more source

Productivity Prediction of Fractured-Vuggy Reservoirs under Time-Varied Flow Rates and Bottom Hole Flow Pressures

Geofluids, 2022
Fracture-vuggy oil reservoirs contain micrometer-sized dissolved secondary pores, fractures, and meter-sized karst caves. Generally, the researches on the flow mechanism of fractured-vuggy reservoirs are based on the assumption of karst cave-fracture ...
Shan Tao, Yandong Xu, Ning Zou, Xin Du, Youzhi Hao   +4 more
doaj   +1 more source

Estimation of the Fracturing Parameters and Reservoir Permeability Using Diagnostic Fracturing Injection Test

Iraqi Geological Journal, 2023
The term "tight reservoir" is commonly used to refer to reservoirs with low permeability. Tight oil reservoirs have caused worry owing to its considerable influence upon oil output throughout the petroleum sector.
Hiba Hasan, Sameera Hamd-Allah
doaj   +1 more source

Seismic Response to Injection Well Stimulation in a High-Temperature, High-Permeability Reservoir [PDF]

, 2019
Fluid injection into the Earth's crust can induce seismic events that cause damage to local infrastructure but also offer valuable insight into seismogenesis.
Chet Hopp, Evans K. F., Grant M. A., Horne R., John Townend, Martha Savage, Massiot C., Stefan Mroczek, Steven Sewell, Zoback M. D.   +9 more
core   +2 more sources

Volcano‐Inspired Dual‐Carbon Network Aerogel for High‐Performance Solar Evaporation With Edge‐Directed Salt Crystallization and Recovery

Advanced Science, EarlyView.
A volcano‐inspired dual‐carbon aerogel featuring hierarchical conduits and an outer carbon‐fiber shell directs rapid water transport, confines heat, and enables directional salt migration. Radial temperature gradients in the conical structure trigger Marangoni‐driven edge‐localized salt crystallization while maintaining an unobstructed photothermal ...
Shuyue Feng, Yongpeng Wang, Mengzhu Liu, Xin Wang, Tao Jia, Haibo Zhang, Haoyue Wu, Yuan Xu, Linghui Kong   +8 more
wiley   +1 more source

Introducing standardized field methods for fracture-focused surface process research [PDF]

Earth Surface Dynamics
Rock fractures are a key contributor to a broad array of Earth surface processes due to their direct control on rock strength as well as rock porosity and permeability.
M. C. Eppes, A. Rinehart, J. Aldred, S. Berberich, M. P. Dahlquist, S. G. Evans, R. Keanini, S. E. Laubach, F. Moser, M. Morovati, S. Porson, M. Rasmussen, U. Shaanan   +12 more
doaj   +1 more source

A Geomechanical Study of the Mississippian Boone Formation [PDF]

, 2013
The Boone Formation in northwest Arkansas is a chert-limestone sequence analogous to the subsurface Mississippi Lime reservoir in parts of Oklahoma and Kansas. It has low permeability and produces via horizontal drilling and hydraulic fracturing.
Buckland, Karen Nicole Mason
core   +2 more sources

The revision of baphetids from the Middle Pennsylvanian of the Czech Republic: Morphology, ontogeny, palaeoecology, and the reassessment of the phylogeny of Baphetoidea

The Anatomical Record, EarlyView.
Abstract The baphetoids represent a clade of the Carboniferous stem‐tetrapods (Middle Mississippian—Middle Pennsylvanian) with a characteristic extension of the orbits into antorbital vacuities, which formed keyhole‐shaped openings on the skull. The more derived baphetids were crocodile‐like piscivores frequently occurring in coal‐bearing lacustrine ...
Pavel Barták, Martin Ivanov, Boris Ekrt
wiley   +1 more source

Pore-scale characterization and modelling of CO2 flow in tight sandstones using X-ray micro-CT; Knorringfjellet formation of the Longyearbyen CO2 lab, Svalbard [PDF]

, 2014
Rocks of the Knorringfjellet Formation in Central Spitsbergen form a potential storage reservoir for CO2 below Longyearbyen. They are characterised by a moderate porosity and low permeability.
Boone, Marijn, Cnudde, Veerle, De Kock, Tim, Olaussen, Snorre, Van Stappen, Jeroen   +4 more
core   +1 more source