摘要
天津市西南部地下蕴含着丰富的地热资源,其中静海县史家庄一带馆陶组热储层广泛分布。该层地热流体化学组份以Na+、Cl-、SO42-为主,r Na/Cl比值大于1,特征元素可溶性SiO2含量超过了25 mg/L,偏硼酸(HBO2-)含量在20～30 mg/L,矿化度5.9 g/L,直接用于洗浴供暖后,管道出现了严重腐蚀等问题。为指导地热资源综合利用,以馆陶组地热流体为例,对其腐蚀性和结垢性进行系统分析。研究表明该组地热流体,拉申指数大于34,具有强腐蚀性,但不结垢。根据不同行业对水质的要求进行对比分析,该层地热水进行一定的水质处理,可进行洗浴、理疗、矿泉水开发等;同时可利用先进的热泵等技术,通过换热后进行供暖。
The abundant geothermal resources are contained in the southwest underground of Tianjin. At present, there is only one geothermal well in this area. And in this geothermal well, the cation with Na^＋ and the anions with Cl^- ,SO^2-4 are lord in the general chemistry as well as the specific value ofr Na/Cl is big in 1. The content of characteristic chemical element dissolubility SiO2 exceeds to the 25 mg/l, the content of partial boric acid （HBO2） is in the 20-30 mg/l and the mineral degree is about 5 916 mg/l as also. In fact, the former careless management method has escaped from the district greatly. So much unforeseeable problem has appeared and affected the development of the native geothermal industry seriously. To sum up analyses, the pull index number is big in 34, the geothermal fluid of Guantao in this area has the strong causticity, but doesn＇t encrust. After having a certain water quality processing, the development of the medical treatment mineral spring can be started and fit to be used for the industries, fishery and heating.
出处
《地质调查与研究》
2007年第3期219-223,共5页
Geological Survey and Research
基金
天津市西南部地热资源调查(津地任[2002]11)
关键词
地热
能源
利用
矿化度
geothermal
resources
utilization
mineral degree.
