河南兰考地区地热回灌影响因素分析及对策
投稿时间:2021-09-26  修订日期:2022-04-22  点此下载全文
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作者单位邮编
陈莹 河南省深部探矿工程技术研究中心 450053
王攀科 河南省地质矿产勘查开发局第二地质环境调查院 450053
吴烨 河南工程学院 451191
马青坡 河南省地质职工学校 450053
于丽 河南省地质矿产勘查开发局第二地质环境调查院 450053
上官锐 河南省深部探矿工程技术研究中心 450053
基金项目:河南省地矿局青年科技创新项目“地热回灌过程中化学沉淀堵塞与腐蚀问题的研究”(任务书编号:豫地矿青科创〔2020〕10号)
中文摘要:地热回灌是保障地热资源可持续开发利用的关键环节之一。本文结合河南兰考地区热储层地质条件、水质特点、地热井井管材质,开展了室内腐蚀观察实验和PHREEQC地球化学模拟软件,从化学沉淀趋势、地热水腐蚀性和钻井成井工艺方面分析了回灌效果的影响因素,并从地热水水质处理、地热井井管材料选择、钻井与成井工艺优化、回灌温度、项目选址等方面提出提高回灌效果的建议。
中文关键词:地热资源  馆陶组  地热井  回灌  兰考地区
 
Analysis on influencing factors of geothermal well reinjection in Lankao Henan Province and Countermeasures
Abstract:Geothermal well reinjection is one of the key links to ensure the sustainable development and utilization of geothermal resources. This paper combined with the geological conditions of thermal reservoir, water quality characteristics and geothermal well pipe material in Lankao Henan Province, conducted the indoor corrosion observation experiment and PHREEQC geochemical simulation software. The influencing factors of reinjection effect are analyzed from the aspects of chemical precipitation trend, corrosion of geothermal water, drilling and well completion technology. And from the aspects of geothermal water quality treatment, geothermal well pipe material selection, drilling and well completion technology optimization, reinjection temperature, site selection, put forward countermeasures and suggestions on improve geothermal reinjection.
keywords:geothermal energy  guantao formation  geothermal well  reinjection  Lankao area  
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