章丘市枣园桃花山地热田地质特征分析

章丘市枣园桃花山地区蕴藏着丰富的地热资源。根据煤矿勘探和地热普查成果,对桃花山地热田的地质背景、热储特征、地球物理化学特征等进行综合分析,认为桃花山地热田属于典型的带状兼层状、对流兼传导型地热田,热储层为奥陶纪马家沟组灰岩,该区地温梯度主要受断裂控制,断裂导热是形成该地温场的一个重要因素,地热水水源主要为渗入的溶滤水。

Analysis on Geological Characteristics of Taohuashan Geothermal Field in Zaoyuan of Zhangqiu City

Taohuashan area in Zaoyuan of Zhangqiu city is rich in geothermal resources. According to the results of coal exploration and geothermal survey, geological background, characteristics of geothermal reservoir, geophysical and chemical characteristics of Taohuashan geothermal field are analyzed comprehensively. It is regarded that Taohuashan geothermal field is a typical belt with layered type, convection with conduction geothermal field. Its geothermal reservoir is Ordovician Majiagou limestone. Temperature gradient in this area is mainly controlled by faults, and fracture conductivity is an important factor for the formation of the geothermal field. Water source is mainly infiltration water.