怀柔西北山前地区地热勘查中物探方法的应用  

The Application of Comprehensive Geophysical Methods on the Geothermal Exploration in Northwest Piedmont Area of Huairou

作　　者：郭彤[1] 丁连靖 雷晓东[2] 付昌鸿 曹磊[1] 赵连海[1] GUO Tong DING Lianjing LEIXiaodong FUChanghong CAOLei KEBailin(Beijing Geothermal Research Institute, Beijing 102218 Beijing Institute of Geo-exploitation Technology, Beijing 102218)

机构地区：[1]北京市地热研究院,北京102218 [2]北京市地质勘察技术院,北京102218

出　　处：《城市地质》2017年第2期96-101,共6页Urban Geology

摘　　要：北京怀柔区庙城镇西北山前地带,地质构造复杂、水循环比较强烈,地热勘查热储层为蓟县系雾迷山组白云岩。本次勘查在地质、水文地质调查和物探资料收集的基础上,开展了重力勘探、微动测深和可控源音频大地电磁测深(CSMAT)。在基本查明区域地质构造展布特征及深部地层组合、厚度、埋深、岩性特征等地热地质条件基础上,拟定了最佳井位。实钻结果验证了物探解译成果,在拟定井位处成功钻凿一眼地热井"京怀-1";该井热储层主要为蓟县系雾迷山组,兼取寒武系底部深度裂隙水。该井涌水量为616.12m^3/d,出水温度45℃,经检验地热水的水化学类型为重碳酸钙镁型水。Northwest piedmont regional geologic structure is complex and water circle alternate is intensive in Miaocheng Town, Huairou District. The dolomite of Wumishan Formation, Jixian System is geothermal reservoir in this area. Based on geological, hydrogeological, geophysical data, the methods of gravity, microseism and CSMAT are implemented in geothermal exploration. According to the identifcation of geology structure, strata combinative characteristics and related geothermal conditions, optimum site of geothermal exploration is determined. Geophysical interpretation is proved to be accurate by drilling JH-1 geothermal well. The reservoir is carbonate rocks of Wumishan Formation and bottom of Cambrian System. This paper shows the results of JH-1 well with the yield is 616.12m3/d and temperature is 45℃ . The hydrochemical type is HCO3-Ca^2＋·Mg^2＋.

关 键 词：地热勘查 综合物探 钻探验证 

分 类 号：P631[天文地球—地质矿产勘探] P314[天文地球—地质学]