Experimental Study of Water Displacement Rates on Remaining Oil Distribution and Oil Recovery in 2D Pore Network Model
نویسندگان
چکیده
An amount of oil remains in reservoirs even at the high water-cut stage produced liquid from wells. To reveal mechanism displacement rates to affect remaining pore scales, a two-dimensional (2D) glass etching network model and real-time visual system were set up observe characteristics distribution water flooding study influence on recovery. It was found that geometry is diverse dynamically changed stage. Three geometric representative parameters defined for classification five types (contiguous, branching, film, dropwise, bar columnar type), controlling mechanisms each type analyzed. The experimental results show saturation decreases 21.2% 6.5% when injection increase 0.05 0.5 mL/min. rate improves efficiency four range 55.00% 93.67% except dropwise type. data also indicate reduction continuous residual branched mainly contributes improvement recovery whole model. With (from 0.1, 0.2, 0.3, 0.4, mL/min), areas local reduce step by step. This research validates porous media leads saturation, it will improve enhancing rates.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15041501