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通过对过去40年收集的西伯利亚北极地区水文地球化学数据进行分析及综合解释,对数据进行了分类、评价和统计分析,评估区域背景值和异常值,估算水源之间接近程度的各种相关系数。西伯利亚沉积盆地的古水文地质重建表明,油气藏的水体有3种成因类型:(1)海相沉积过程中形成的水体;(2)渗入盆地内并经历了各个地质时期表生作用的大气降水成因的水体;(3)烃类混合物冷凝形成的水体。油气藏的水文地球化学模式受控于水-岩-气-有机质体系漫长的地质演化过程。西伯利亚北极地区沉积盆地内分布总矿化度为0.2~350.0 g/L的含氯化钠-碳酸氢盐、氯化钠、氯化钙地下水和其他类型的地下水。通过对西伯利亚北极地区地下水的对比分析,发现含有氯化钠组分的样品总矿化度超过250 g/L,表明卤水的形成与蒸发岩的浸出有关。水文地球化学数据分析显示,地下水的成分随其演化而发生非常大的变化,阿纳巴尔—拉普帖夫、西西伯利亚等盆地中生界的地下水处于其化学演化的初始阶段。
Through the analysis and comprehensive interpretation of the data of the hydrogeochemistry in the Arctic region of Siberia collected in the past 40 years, the data were classified, evaluated and statistically analyzed, and the regional background and outliers were evaluated. Various correlation coefficients for estimating the closeness between water sources . The paleo-hydrogeological reconstruction of the Siberian sedimentary basin shows that there are three genetic types of water bodies in the reservoir: (1) water bodies formed during marine deposition; (2) atmospheric precipitation that has infiltrated the basin and undergone epigenetic surface geology Genesis of water; (3) Hydrocarbon condensate formed by the water mixture. The hydrogeochemical model of the reservoir is controlled by the long geological evolution of the water-rock-gas-organic system. Sodium chloride-bicarbonate, sodium chloride, calcium chloride groundwater and other types of groundwater are distributed in sedimentary basins in the Siberian Arctic with a total salinity of 0.2-350.0 g / L. Through the comparative analysis of the groundwater in the Arctic region of Siberia, the total salinity of samples containing sodium chloride was found to exceed 250 g / L, indicating that the brine formation is related to the leaching of evaporites. Hydrogeochemical data analysis shows that the composition of groundwater varies greatly with its evolution. The Mesozoic groundwater in the Annapartare-Lapu-Said and Western Siberia basin is at the initial stage of its chemical evolution.