摘要
本文以临清御临苑地热井的勘查成井工作为例,分析水热型砂岩孔隙型地热资源的高效勘查及钻井成井工艺,以期为本区及类似区地热资源的高效勘查开发利用提供一些思路。前期通过收集分析有关资料大致了解地热地质条件,选择视电阻率测深研究隐伏地层及断裂特征,推测有利的地热成矿区;再通过大地电场岩性测深了解不同点位的含水层厚度及深度,优选地热井点位;根据地层及其岩性特征选择不同的钻具组合及配置适当的泥浆进行钻进,结合多参数测井确定成井结构和适宜的封固止水完井工艺,总共耗时68天,最后获得了一口水温较高、水量较大、质量优良的较大口径地热探采井,达到了经济高效勘查成井的目的。
Taking the exploration and drilling of geothermal wells in the Yulinyuan residential area of Linqing City as an example,this paper analyzes the efficient exploration and drilling technology of hydrothermal sandstone pore geothermal resources in order to provide some lines of thought for the efficient exploration and development of geothermal resources in this area and other similar areas.In the early stage,the geological conditions of geothermal resources were roughly understood by collecting and analyzing relevant data,and apparent resistivity sounding data selected to study concealed strata and fault characteristics,thus inferring favorable geothermal ore-forming areas.The thickness and depth of aquifers at different sites were known through geoelectric field lithology sounding,and geothermal well points were preferred.According to the formation and lithologic characteristics,different drilling tool assemblies and appropriate mud were selected for drilling,and the well formation structure and appropriate sealing,sealing and water-stopping completion technology were determined by combining multi-parameter logging.The total time consumed is 68 days.Finally,a large-diameter geothermal exploration and production well with high water temperature,large water volume and good quality was generated,which meets the purpose of exploration and well drilling with high economic efficiency.
作者
马晓东
MA Xiaodong(Academy of Geological Science of Shandong Province,Key Laboratory of Metal Mineral Metallogenic Geological Process and Resource Utilization of Shandong Province,Key Laboratory of Metal Mineral Metallogenic Geological Process andResource Utilization of the Ministry of Land and Resources,Jinan,Shandong 250013)
出处
《地质与勘探》
CAS
CSCD
北大核心
2020年第1期173-181,共9页
Geology and Exploration
基金
国家自然科学基金项目(编号:41140025、41672084、41372086、41503038)
山东省泰山学者工程专项经费
山东省重大科技创新工程项目胶西北地壳深部结构与成矿机理研究(编号:2017CXGC1601)
科技部国家重点研发计划课题《蚀变岩型金矿立体地球化学探测试验示范》(编号:2016YFC0600606)联合资助
关键词
砂岩
孔隙型
地热资源
勘查
临清
sandstone
pore type
geothermal resources
exploration
Linqing
作者简介
第一作者:马晓东(1972年-),男,毕业于成都理工学院,高级工程师,主要从事地质矿产勘查及研究工作,E-mail:smxd2007@qq.com。
