摘要
济阳坳陷地处山东半岛渤海湾盆地,是地热资源条件较好的地区,本文在系统分析济阳坳陷地热地质条件的基础上,结合大气降水和地热水稳定同位素数据,对该区域地下热水化学特征进行评价,结果表明:济阳坳陷地下热水来源于不同的热储层组各自所相对应的地质年代中的古大气降水,各热储层之间无明显的水力联系。具有勘探和开发意义的热储层组为新近系馆陶组热储、古近系东营组热储和下古生界寒武—奥陶系碳酸盐岩热储三个主要热储层组,热水层组水化学类型均为Cl-Na型,属弱碱性、盐水。地下热水中含有丰富的微量元素,氟、锂和锶含量达到命名矿水浓度,具有一定的医疗和保健作用,可以作为医疗热矿水利用。研究结果为济阳坳陷地热资源的合理开发利用提供了科学依据。
The Jiyang Depression is located in the Bohai Bay Basin of the Shandong Peninsula. It is a region with good geothermal resources. Based on a systematic analysis of geothermal conditions in the Jiyang Depression,this paper combines atmospheric precipitation and geothermal water stable isotope data. The underground hot water chemical characteristics were evaluated and the results showed that the underground hot water in the Jiyang Depression came from the paleo-atmospheric precipitation in the geologic time corresponding to different thermal reservoir groups,and there was no obvious hydraulic connection between the thermal reservoirs. The thermal reservoir group with exploration and development significance is the three main thermal reservoirs of the Neogene Guantao Formation thermal reserve,the Dongying Formation thermal storage of the Paleogene,and the Lower Cambrian-Ordovician carbonate rock thermal storage in the Lower Paleozoic. The water chemistry of the hot water layer group is Cl-Na type,which is weak alkaline and salt water. Underground hot water is rich in trace elements,and the content of fluorine,lithium and barium reaches the named ore concentration,which has certain medical and health care functions and can be used as medical hot mineral water. The research results provide scientific basis for the rational development and utilization of geothermal resources in the Jiyang Depression.
作者
杨永红
高宗军
林海斌
YANG Yong-hong;GAO Zong-jun;LIN Hai-bin(Sinopec Shengli Oil Field Branch,Exploration and Development Institute,Dongying,Shandong,257015,China;Shandong University of Science and Technology,Qingdao,Shandong,266590,China)
出处
《地下水》
2018年第3期23-27,共5页
Ground water
基金
国家自然科学基金项目"地下水流及其系统分异的热驱动机制研究"(41641022)
胜利油田分公司地质科学研究院"山东省地热资源潜力调查研究"项目
关键词
地热水
水化学特征
同位素
热储层
济阳坳陷
geothermal water
hydrochemical characteristics
isotope
thermal reservoir
Jiyang depression
