莱芜市冷家庄地热田地质特征浅析

Primary Study on Geological Characteristics of Lengjiazhuang Geothermal Field in Laiwu City

摘要:

莱芜市冷家庄地热田地热资源类型属层状兼带状，热源为高庄冷家庄断裂沟通导热，盖层是第四系、古近系、石炭二叠系。热储层为奥陶纪灰岩，该热储层顶板埋深2100m左右，热储层厚度由南向北逐渐增大，地热流体中富含氟、锶、偏硅酸等微量元素，为结垢非常严重，锅垢很多的腐蚀性水。经计算，奥陶纪热储层单井可采资源量为7.83×105m3/a。

Abstract:

Lengjiazhuang geothermal field in Laiwu city belongs to layered and ribbon type. Its heat source is GaozhuangLengjiazhuang fracture communication thermal conductivity. The covering layers are Quaternary, Paleogene and Carboniferous Permian. Thermal reservoir are Ordovician limestones. The depth of the geothermal reservoir roof is about 2100m. The thickness of heat reservoir increases gradually from south to north. Geothermal fluid is rich in fluoride, strontium metasilicate trace elements. Scaling and corrosive water is very serious. boiler scale. Single well recoverable resource of Ordovician thermal reservoir is 7.83×105m3/a.