摘要
扶风县城位于渭河盆地咸礼凸起西部,地热资源包括新生界碎屑岩类孔隙型地热资源和下古生界碳酸盐岩类岩溶型地热资源,地热资源条件较好。以扶风佛文化休闲产业园R2地热井为研究对象,采用钢齿牙轮钻头、PDC钻头和镶齿牙轮钻头分别对新生界松散地层和下古生界碳酸盐岩地层进行钻进,建立成井深度为1 900m的二级成井结构,对区域地热资源条件与成井工艺进行研究,结果可知:该地热井取用的新近系上新统蓝田-灞河组热储层、中新统高陵群热储层和下古生界奥陶系热储层为目的层,取水段为923. 3~1 874. 2 m,经产能测试,该井抽水降深40. 8 m时,出水量64. 11 m^3/h,井口水温66℃。按GB/T11615-2010《地热资源地质勘查规范》,扶风县城地热资源属于较适宜开采区;地热资源温度分级属于热水,可用于采暖、理疗、洗浴、温室等;地热水中氟、偏硼酸、偏硅酸、氡等矿物含量具有医疗价值,其中氟含量达到命名矿水浓度,可命名为氟水,具有较高的理疗价值。
Salty ritual bulge out from the county seat is located in the wei river basin west,geothermal resources including Cenozoic little rock pore type geothermal resources and the upper Paleozoic carbonate karst type geothermal resources,geothermal resources condition is good with out of leisure culture industrial park R2 geothermal Wells as the research object,USES the steel tooth bit PDC bit and insert bit of Cenozoic loose strata respectively in carbonate formation and lower Paleozoic era,establish secondary structure of a depth of 1900 m,the study of regional geothermal resource conditions and well completion technology,results indicate: the geothermal well taken on new series kai-the heat reservoir of dam river The Miocene group thermal reservoir and the lower Paleozoic ordovician thermal reservoir are the target strata,and the water intake section is 923.3 ~ 1874. 2 m. According to the productivity test,when the well is pumped down to a depth of 40. 8 m,the water yield is 64.11 m/h. Geothermal resource temperature classification belongs to hot water,can be used for heating physical therapy bath greenhouse;The mineral content such as radon metaboric acid of fluoroboric acid in geothermal water has medical value,among which the fluorine content reaches the concentration of named mineral water,which can be named as fluorine water,having higher physiotherapy value.
作者
兀少波
邵睿涛
WU Shao-bo;SHAO Rui-tao(Shaanxi engineering survey research institute,710068,xi'an China;Shaanxi tiandiyuan new energy investment co.,LTD.,710068,xi'an China)
出处
《地下水》
2020年第1期112-115,282,共5页
Ground water
关键词
扶风县城
地热资源
地热井
成井工艺
Fufeng county
Geothermal resources
Geothermal well
Suppling process
