Results 1 to 10 of about 353,084 (166)

Effect of hydrate nucleation mechanisms and capillarity on permeability reduction in granular media

open access: yesGeophysical Research Letters, 2016
A model for water permeability reduction in hydrate‐bearing sediments is presented by considering capillary effect in hydrate nucleation. Both grain‐coating and pore‐filling cases are considered.
Dong Hun Kang   +3 more
doaj   +2 more sources

Migration mechanism of grouting slurry and permeability reduction in mining fractured rock mass [PDF]

open access: yesScientific Reports
In order to solve the water and gas discharge hazard caused by gob water and harmful gases (such as CO), the method of grouting overburden fractures is adopted to achieve the purpose of safe and efficient mining production in coal mines.
Cao Zhengzheng   +3 more
doaj   +2 more sources

Dissolution-Driven Permeability Reduction of a Fractured Carbonate Caprock. [PDF]

open access: yesEnviron Eng Sci, 2013
Geochemical reactions may alter the permeability of leakage pathways in caprocks, which serve a critical role in confining CO2 in geologic carbon sequestration. A caprock specimen from a carbonate formation in the Michigan sedimentary Basin was fractured and studied in a high-pressure core flow experiment. Inflowing brine was saturated with CO2 at 40°C
Ellis BR   +5 more
europepmc   +4 more sources

Synthesis and Experimental-Modelling Evaluation of Nanoparticles Movements by Novel Surfactant on Water Injection: An Approach on Mechanical Formation Damage Control and Pore Size Distribution [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
Water injection is used as a widespread IOR/EOR method and promising formation damages (especially mechanical ones) is a crucial challenge in the near-wellbore of injection wells.
Mohammad Parvazdavani   +2 more
doaj   +1 more source

Effect of Seepage Velocity on Pore Clogging Growth Behavior and Its Effect on Permeability Reduction During Fines Migration in Porous Media

open access: yesWater Resources Research, 2023
Fines migration driven by fluid flows often causes pore clogging in porous media and thus reduces the permeability of the porous media. The clogging can pose serious problems in various practices, such as formation damage in hydrocarbon reservoirs ...
Gyeol Han, Tae‐Hyuk Kwon
doaj   +1 more source

A new investigation on modeling of permeability reduction during CO2 flooding processes in sandstone oil reservoirs [PDF]

open access: yesNumerical Methods in Civil Engineering, 2014
Permeability reduction in oil reservoirs during primary oil recovery and using the enhanced oil recovery methods are complicated problem which most of the oil field in worlds has encountered.
Taraneh Jafari Behbahani
doaj   +1 more source

Permeability reductions induced by sorption of surfactant [PDF]

open access: yesWater Resources Research, 1997
Surfactant enhanced aquifer remediation (SEAR) is an attractive alternative to traditional pump and treat methods for remediating aquifers contaminated with nonaqueous phase liquids. However, initial studies indicate that the application of surfactant can reduce aquifer permeability by more than an order of magnitude, limiting the efficiency of SEAR. A
Carl E. Renshaw   +2 more
openaire   +1 more source

Effect of compressive stress on the intrinsic permeability of concrete

open access: yesResults in Materials, 2022
Intrinsic permeability of concrete is a fundamental material property governing its durability and the development of pore pressure during fire exposure.
Johann Eduard van der Merwe, Dr. sc. ETH Zurich
doaj   +1 more source

Cross-Linked Polyimide/ZIF-8 Mixed-Matrix Membranes by In Situ Formation of ZIF-8: Effect of Cross-Linking on Their Propylene/Propane Separation

open access: yesMembranes, 2022
Despite their potential for the scalable production of mixed-matrix membranes (MMMs), the MMMs prepared by the polymer-modification-enabled in situ metal–organic framework formation (PMMOF) process showed a considerable reduction in gas permeability as ...
Sunghwan Park, Hae-Kwon Jeong
doaj   +1 more source

Factors Affecting Permeability Reduction of MICP for Fractured Rock

open access: yesFrontiers in Earth Science, 2020
Microbial induced calcite precipitation (MICP) has shown great potential to reduce the permeability of fractured rock, but its permeability reduction characteristic, affected by cementing solution concentration and geometric morphology of fractured rock,
Shuquan Peng   +4 more
doaj   +1 more source

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