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首页> 外文期刊>SPE Reservoir Evaluation & Engineering >Wettability effects on oil-recovery mechanisms in fractured reservoirs
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Wettability effects on oil-recovery mechanisms in fractured reservoirs

机译：润湿性对裂缝性油藏采油机理的影响

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Iterative comparison between experimental work and numerical simulations has been used to predict oil-recovery mechanisms in fractured chalk as a function of wettability. Selective and repro- ducible alteration of wettability by aging in crude oil at and elevat- ed temperature produced chalk blocks that were strongly water-wet and moderately water-wet, but with identical mineralogy and pore geometry. Large scale, nuclear-tracer, 2D-imaging experiments monitored the waterflooding of these blocks of chalk, first whole, then fractured. This data provided in-situ fluid saturations for val- idating numerical simulations and evaluating capillary pressure- and relative permeability-input data used in the simulations.
机译：实验工作和数值模拟之间的迭代比较已被用来预测裂缝白垩中油的回采机理与润湿性的关系。通过在高温和升高的温度下在原油中老化，可选择性和可再现地改变润湿性，从而制得的粉笔块具有高水湿性和中水湿性，但具有相同的矿物学和孔隙几何形状。大规模的核示踪剂2D成像实验监控了这些粉笔块的注水过程，首先是整体注入，然后是破裂。该数据为验证数值模拟和评估模拟中使用的毛细管压力和相对渗透率输入数据提供了现场流体饱和度。

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