CO2 wettability of seal and reservoir rocks and the implications for carbon geo‐sequestration

论文翻译，此论文为关于二氧化碳的润湿性影响二氧化碳地质封存
原文标题：CO2 wettability of seal and reservoir rocks and the implications for carbon geo‐sequestration

In oil-water systems, it has been shown that wettability deviating from water-wet can result in higher amounts of mobile compared to trapped oil [Anderson, 1987a; Jadhunandan and Morrow, 1995].If the same behavior were to occur in CO2-water systems then CO2 plumes would be extended (e.g., in an open aquifer where a structural trap is missing) if the system were to be less water-wet. In case of a structural trap more mobile CO2 will result in potentially higher CO2 column heights and therefore increased pressures acting on the caprock.This again might increase the risk of exceeding either the fracturing or the capillary entry pressure of the formation with possible consequences on shallow saline or drinking water aquifers.

在油水系统中，已经证明，与被困油相比，偏离水湿的润湿性可导致更高的流动性[Anderson，1987a;Jadhunandan和Morrow，1995]。如果在CO2-水系统中发生相同的行为，那么如果系统水湿度较低，则CO2羽流将会延长（例如，在缺少结构性疏水阀的开放含水层中）。 在结构陷阱的情况下，更多的移动CO2将导致更高的CO2柱高度，从而增加作用在盖层上的压力。这再次可能增加超过地层的压裂或毛细管入口压力的风险，可能对浅盐水或饮用水含水层产生影响。