1,721,219 research outputs found
X-ray microtomography imaging of abiotic carbonate precipitation in sands and its effect on permeability of sands
No full textInSAR-based Detection and Mapping of Seismically-induced Ground Deformation in Pohang City using Sentinel-1
No full text계면물성 개질능을 가진 생계면활성제 생산 미생물 및 이를 활용한 이산화탄소 지중 저장 증진 방법
No full textA geological storage system of carbon dioxide according to an exemplary embodiment of the present invention includes: an injection pipe that extends to a carbon storage reservoir that includes a plurality of rock grains and brine, from the ground surface, and supplies an injection material that includes carbon dioxide (CO2) to the carbon storage reservoir; a plurality of pores that are disposed between the plurality of rock grains; and a storage structure that is connected with a part of the plurality of pores and where the carbon dioxide reaches through the plurality of pores and then stored
Feasibility study of using bacterial biofilm formation for reduction of hydraulic conductivity of sands
No full textComparison of Pore Network Simulation and X-ray Computed Microtomography Imaging on Supercritical Carbon Dioxide Injection to Sandstone
No full textGeologic carbon storage is one of the methods to reduce the concentration of carbon dioxide in atmosphere by injecting carbon dioxide into the permeable layer such as marine aquifer and depleted gas reservoir. The injected carbon dioxide was captured by several mechanisms. Capillary trapping is the most important mechanism, which determine the quantity of carbon storage. Carbon dioxide injection process was difficult to reproduce because reservoirs have high-pressure condition and more than two fluids were involved. Therefore, the simulation methods were adapted in this study focused on capillary trapping effect. Among various simulation methods, pore network modeling methods were used which was based on Hagen-Poiseuille equation and Young-Laplace equation. By simplify the pore geometry into cylinders and spheres, it can reduce the computation time. Using the pore network modeling, carbon dioxide displacement into brine-filled Domengine sandstone was simulated. Simulation result was compared with the microCT experiment results in order to verify the pore network system
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