云南蒙自坝区地热地质条件及热储特征  

Geothermal Geological Condition and Geothermal Reservoir Features in Mengzi Basin Area,Yunnan

作　　者：罗成[1] 贺强 Luo Cheng;He Qiang(The Fourth Hydrogeological Exploration Team,CNACG,Handan,Hebei 056001;China National Administration of Coal Geology,Beijing 100040)

机构地区：[1]中国煤炭地质总局第四水文地质队,河北邯郸056001 [2]中国煤炭地质总局,北京丰台100040

出　　处：《中国煤炭地质》2018年第2期64-67,共4页Coal Geology of China

摘　　要：研究区内沉积较厚的新近系砂泥岩、三叠系碳酸盐岩层,未见地热异常现象,但周边局部地区沿断裂附近有温泉出露。采用钻探手段探查蒙自坝区内地热地质特征,对坝区地热地质条件、热储赋存特征进行分析研究。结果表明:区内三叠系个旧组、永宁镇组为两个热储含水层,坝区东西两侧分布近南北向通海-个旧、蒙自-屏边区域性断裂为导热通道,热水化学类型HCO_3—Ca型,水中F^-、Sr元素含量较高,为具有医疗价值热矿水;坝区赋存中低温对流型地热资源热矿水。Within the study area has deposited rather thick Neogene sandy mudstone and Triassic carbonate rocks,but without geothermal anomalous phenomena;while in periphery locally have hot springs outcropped.To explore geothermal geological features in the Mengzi basin area through drilling carried out analytical study of geothermal geological condition and geothermal reservoir hosting features in basin area.The result has shown that the Triassic Gejiu Formation and Yongningzhen Formation in the area are two geothermal reservoir aquifers.East and west two sides of the basin area distributed near NS Tonghai-Gejiu,Mengzi-Pingbian regional faults,they are thermal conduction channels.The hot water chemical type belongs to HCO 3-Ca type.Content of elements F and Sr is high,so the hot mineral water has medical values.Thus in basin area has hosted medium to low temperature convectional geothermal hot mineral water.

关 键 词：地热异常 导热通道 热源 成因模式 

分 类 号：P641.5[天文地球—地质矿产勘探]