Modeling Multiphase Organic Spills in Coastal Sites with TMVOC V.2.0
Modeling Multiphase Organic Spills in Coastal Sites with TMVOC V.2.0
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DOI：
10.2136/vzj2006.0119
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发表时间：
2008-02
影响因子：
2.8
通讯作者：
A. Battistelli
中科院分区：
文献类型：
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作者：
A. Battistelli
污染物泄漏经常发生在许多工业工厂所在的沿海地区。炼油厂和石化厂通常建在海边，便于原油和最终副产品的运输。溢出到沿海地点地下的有机化合物的迁移可能受到海水侵入向海洋排放的含水层的影响。TMVOC的改进版本属于TOUGH2系列数值油藏模拟器，可以模拟多相条件下多组分有机混合物的迁移，考虑溶解在水相中的氯化钠的影响。地下水的热物理性质作为温度，压力和盐度的函数进行评估后，EWASG，TOUGH2最初开发用于模拟地热储层的专用热力学模块的盐水的基本方法。使用二维垂直数值模型对多组分有机物溢出进行的模拟显示了海水入侵对含水层内污染物分布的影响。作为一种手段，遏制羽向海洋的蔓延，防渗墙的建设对非水相液体（NAPL）羽迁移的影响进行了研究。
Contaminant spills are frequently encountered in coastal sites where many industrial plants are located. Refineries and petrochemical plants are often built close to the sea for easy transport of crude oil and final by‐products. The migration of organic compounds spilled in the subsurface of coastal sites can be influenced by the effects of seawater intrusion in the aquifers discharging to the sea. An improved version of TMVOC, belonging to the TOUGH2 family of numerical reservoir simulators, can model the migration of multicomponent organic mixtures under multiphase conditions accounting for the effects of sodium chloride dissolved in the aqueous phase. The thermophysical properties of groundwater as a function of temperature, pressure, and salinity are evaluated following the basic approach used for saline brines in EWASG, a specialized thermodynamic module of TOUGH2 originally developed to model geothermal reservoirs. Simulations of a multicomponent organic spill using a two‐dimensional vertical numerical model show the effects of seawater intrusion on the distribution of contaminants within the aquifer. The effects of the construction of an impervious wall on the nonaqueous phase liquid (NAPL) plume migration, as a means to contain the spreading of plume toward the sea, are also investigated.