山东省地热水水化学研究及赋存特征

为研究山东省地热水水化学特征及赋存特征,利用2015年采集的104组山东省地热水样的分析检测结果,开展对地热分区的水化学特征的论述。研究发现鲁东隆起地热区水化学类型以HCO_3·SO_4-Na型水和Cl-Na·Ca型水为主,鲁中南地热区水化学类型较为复杂,主要为SO_4型水,鲁西北坳陷地热区水化学类型以Cl-Na型水为主;根据山东省地质构造、水文地质条件和地热水赋存特征等因素,将全省地热水资源分成鲁东、鲁西北和鲁中南3个大区,其中鲁中南区又可划分为4个亚区。从热储层岩性、热储类型、盖层特征及其成因类型等方面对各地热分区进行了概述。

Occurrence characteristics and hydrochemical characteristics of geothermal water in Shandong Province

In order to study the hydrochemical characteristics and occurrence characteristics of geothermal water in Shandong Province, 104 groups of geothermal water samples collected in 2015 were used to discuss the hydrochemical characteristics of geothermal zoning.It is found that the hydrochemical types in the geothermal area of the eastern Shandong uplift are mainly HCO3·SO4-Na type water and Cl-Na·Ca type water. The hydrochemical types in the central and southern Shandong geothermal area are more complex, mainly SO4 type water. The hydrochemical types in the northwestern Shandong depression are mainly Cl-Na type water.According to the geological structure, hydrogeological conditions and geothermal water occurrence characteristics of Shandong Province, the geothermal water resources in Shandong Province are divided into three regions, i.e. Eastern Shandong, Northwestern Shandong and central-southern Shandong. The central-southern Shandong can be divided into four sub-regions, and the geothermal zones are summarized in terms of lithology of thermal reservoirs, types of thermal reservoirs, characteristics of caprocks and genetic types.