油田特征污染物在包气带中的迁移规律

The Transportation Pattern of Oil Field Characteristic Pollutant in Aeration Zone

应用HJ 964-2018《环境影响评价技术导则土壤环境(试行)》中推荐的预测模型,对油田特征污染物-石油烃在包气带中的迁移建立了数学模型,预测石油烃在包气带中的垂直迁移,计算得出当石油烃进入包气带后,经约4 d迁移至地下34 cm(N2),20 d达到峰值浓度;38 d迁移至地下450 cm(N6),140 d达到浓度峰值。为油田日常的环保管理和污染防治措施提供了有力的技术支持。

In this study,a numerical model was built to simulate the vertical transport of oilfield characteristic pollutant(Total Petroleum Hydrocarbon,TPH,etc.)in the aeration zone according to "the Technical Guidelines for Environmental Impact Assessment-Soil Environment"(HJ 964-2018).The results showed that,it would take 4 dfor TPH to intrude 34 cm underground(N2),20 dto reach maximum concentration;it would take 38 dto intrude 450 cm underground(N6),and 140 dto reach maximum concentration.This study could provide technical support for daily environmental management and pollution control measures.