Results 21 to 30 of about 225,791 (344)

Cardiogenic Pulmonary Edema in Emergency Medicine

open access: yesAdvances in Respiratory Medicine, 2023
Cardiogenic pulmonary edema (CPE) is characterized by the development of acute respiratory failure associated with the accumulation of fluid in the lung’s alveolar spaces due to an elevated cardiac filling pressure. All cardiac diseases, characterized by
Christian Zanza   +10 more
doaj   +1 more source

Understanding the Impact of Open-Framework Conglomerates on Water-Oil Displacements: Victor Interval of the Ivishak Reservoir, Prudhoe Bay Field, Alaska [PDF]

open access: yes, 2014
The Victor Unit of the Ivishak Formation in the Prudhoe Bay Oilfield is characterized by high net-to-gross fluvial sandstones and conglomerates. The highest permeability is found within sets of cross-strata of open-framework conglomerate (OFC).
Dominic, David F.   +3 more
core   +3 more sources

Functions of capillary pressure and dissolution in the CO2-flooding process in low-permeability reservoirs

open access: yesJournal of Petroleum Exploration and Production Technology, 2020
CO2 flooding has become one of most effective methods to improve oil recovery in low-permeability reservoirs. Thus, influencing factors have been specifically analyzed for their impact on oil displacement.
Xiaoliang Huang   +5 more
doaj   +1 more source

A fractal permeability model for the dual-porosity media of tight gas reservoirs

open access: yesEnergy Exploration & Exploitation, 2021
Hydraulic fracturing is a crucial method for the exploitation of tight gas reservoirs. The matrix permeability is a key factor influencing the fracturing result. This paper assumes that the matrix permeability is provided by a series of capillary bundles
Fanhui Zeng   +5 more
doaj   +1 more source

A New Method to Calculate the Relative Permeability of Oil and Water in Tight Oil Reservoirs by Considering the Nonlinear Flow

open access: yesGeofluids, 2022
The theoretical research on the percolation mechanism and oil-water relative permeability of low-permeability oil reservoirs is the focus and hotspot of international researchers.
Haibo Su   +9 more
doaj   +1 more source

Flow coupling during three-phase gravity drainage [PDF]

open access: yes, 2011
We measure the three-phase oil relative permeability k(ro) by conducting unsteady-state drainage experiments in a 0.8 m water-wet sand pack. We find that when starting from capillary-trapped oil, k(ro) shows a strong dependence on both the flow of water ...
Aminzadeh, B.   +3 more
core   +1 more source

Effect of Foam on Liquid Phase Mobility in Porous Media [PDF]

open access: yes, 2017
We investigate the validity of the assumption that foam in porous media reduces the mobility of gas phase only and does not impact the liquid-phase mobility.
Eftekhari, Ali Akbar, Farajzadeh, R.
core   +1 more source

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

open access: yes, 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   +69 more
core   +2 more sources

Effects of applied load and its direction on the permeability behavior of concrete: A case study

open access: yesCase Studies in Construction Materials, 2021
The applied load has significantly impacted on the permeability behavior of concrete. Although many investigations have reported the impact of loading level on the permeability, the influence of loading direction on the permeability received little ...
Jianguang Xu, Tiejun Zhao, Wenpan Lu
doaj   +1 more source

The arteriolar vasodilatation model of vibrio cholerae induced diarrhoeal disease [PDF]

open access: yes, 2018
Secretory diarrhoeal disease caused by enterotoxins produced by pathogenic bacteria is characterised by severe fluid loss into the intestine. A prevalent explanation for such high rates of loss, such as occur in episodes of cholera, is that intestinal ...
Lucas, Michael
core   +1 more source

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