Nanomaterials for subsurface application: study of particles retention in porous media

Abstract

The ability to transport nanoparticles through porous media has interesting engineering applications, notably in reservoir capacity exploration and soil remediation. A series of core-flooding experiments were conducted for quantitative analysis of functionalized TiO2 nanoparticles transport through various porous media including calcite, dolomite, silica, and limestone rocks. The adsorption of surfactants on the rock surface and nanoparticle retention in pore walls were evaluated by chemical oxygen demand (COD) and UV–Vis spectroscopy. By applying TiO2 nanoparticles, 49.3 and 68.0 wt.% of surfactant adsorption reduction were observed in pore walls of dolomite and silica rock, respectively. Not surprisingly, the value of nanoparticle deposition for dolomite and silica rocks was near zero, implying that surfactant adsorption is proportional to nanoparticle deposition. On the other hand, surfactant adsorption was increased for other types of rock in presence of nanoparticles. 5.5, 13.5, and 22.4 wt.% of nanoparticle deposition was estimated for calcite, black and red limestone, respectively. By making a connection between physicochemical rock properties and nanoparticle deposition rates, we concluded that the surface roughness of rock has a significant influence on mechanical trapping and deposition of nanoparticles in pore-throats.

Superior adsorption of methyl blue on magnetic Ni–Mg–Co ferrites: Adsorption electrochemical properties and adsorption characteristics

“…However, owing to its high cost, more and more research has been done on removing dyes and metals using alternatives and highly efficient adsorbents 7 . Current research has proved that nanomaterials adsorption displays a promising prospect in environmental restoration technologies, because they can solve some difficult problems of environmental restoration with appropriate methods: pollution monitoring, industry, groundwater, and soil remediation 8 . However, the separation of nanomaterials using traditional filtration methods usually results in loss of nanomaterials and clog of filters.…”

“…7 Current research has proved that nanomaterials adsorption displays a promising prospect in environmental restoration technologies, because they can solve some difficult problems of environmental restoration with appropriate methods: pollution monitoring, industry, groundwater, and soil remediation. 8 However, the separation of nanomaterials using traditional filtration methods usually results in loss of nanomaterials and clog of filters. In order to overcome these problems in the above traditional filtering methods.…”

Petroleum Exploration System Based on Main Migration Pathway and Nanohydrocarbon

“…Hence, we can research it by systematically thinking, such as Metallogenic System Theory, tied with resource, transportation, channel, and storage. The ability to transport nanoparticles has interesting applications [1]. The nanosized pore throat is a new view for the source [2], but the channel is more important.…”

Synthesis and Characterization of Fluorescent Silica Nanoparticles With Potential Application in Transport and Adsorption Studies in Porous Medium

“…The introduction of specific additives can influence the transport and retention of NPs by facilitating chemical interactions between surface groups, as demonstrated in the previous examples. 47,127 However, sometimes the NPs adsorption in the porous media is the goal of the research. For instance, the potential of different silica nanofluids as surface modifying agents for Berea sandstone, hence reducing fines migration.…”