Results 211 to 220 of about 6,094,197 (290)

Beyond the Leak: Advanced MRI Assessment of the Blood-Brain Barrier in Neurodegeneration.

open access: yesNeurodegener Dis
Botta D   +6 more
europepmc   +1 more source

Permeability reduction by gellan gum solutions

Journal of Petroleum Science and Engineering, 2022
Abstract This paper summarizes the results of laboratory experiments with gellan gum. Gellan gum solutions demonstrated plugging in distilled water and brine saturated sand packs. Progressive plugging in distilled water saturated sand packs is explained by the presence of gel particles in the gellan gum solutions, whereas plugging in brine saturated ...
Iskander Gussenov   +1 more
openaire   +2 more sources

A coupled bio-chemo-hydraulic model to predict porosity and permeability reduction during microbially induced calcite precipitation

Advances in Water Resources, 2020
Microbially induced calcite precipitation (MICP) provides the potential for developing innovative and environmentally friendly techniques to improve the engineering properties of soil through reduction of permeability in soil and increase of soil ...
Xuerui Wang, Udo Nackenhorst
exaly   +2 more sources

Quantifying the Permeability Reduction of Biogrouted Rock Fracture

Rock Mechanics and Rock Engineering, 2018
Uncontrollable seepage is one of the commonly encountered disasters in underground excavation projects (Gell and Wittke 1986; Gmünder and Arn 1993; Dhawan et al. 2004; Min et al. 2009; Walsh et al. 2013). Cementitious or chemical grouts are often used for seepage control by sealing the rock joints in the areas, where caverns or tunnels are going to be ...
Wu, Chuangzhou   +3 more
openaire   +3 more sources

3D characterization of microbially induced carbonate precipitation in rock fracture and the resulted permeability reduction

Engineering Geology, 2019
A new seepage control method for fractured rock is biogrouting through a microbially induced calcite precipitation (MICP) process. A study on the spatial distribution of biogrout in a rock fracture and its effect on permeability reduction is presented in
Shifan Wu, Yi Hong, Jian Chu
exaly   +2 more sources

The study on permeability reduction performance of a hyperbranched polymer in high permeability porous medium

Journal of Petroleum Science and Engineering, 2013
Abstract This paper was focused on the permeability reduction performance of a hyperbranched polymer in high permeability porous medium. Water solubility, rheological property, viscoelasticity, and filtration experiments were adopted for investigating the solubility and injectivity of the hyperbranched polymer. Atomic force microscope (AFM), scanning
Zhongbin Ye, Xiaoping Qin, Nanjun Lai
exaly   +2 more sources

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