Geothermal Resources Study And Evaluation Of The Tongliao City, Inner Mongolia

This study is on the analysis and research of Tongliao city based on the data of the geothermal geology, bymeans of geological survey, drilling, geothermal geothermal water chemical analysis, preliminary delineation of the scope of the geothermal anomaly, the geothermal fluid flow estimation of natural geothermal area, explore the D+E reserves, exploiting prospect evaluation.Longwan drum the geothermal survey the study area is located in the depression of Kailu Basin and the sag.Longwan cylinder sag is divided into a number of secondary tectonic units, such as the Baochu slope belt, Tai Ping Zhuang-the spit sag, uplift area, surplus Bao Chao Lu spit sag zone, the new Al in fault zone. Geothermal hole is located in Tai Ping Zhuang, spit in the sag. In developing a series of NE and NNE faults. A pre Mesozoic, Mesozoic Cretaceous Yixian Formation, under the nine Temple group, Shahai formation and Fuxin formation mainly developed in the formation, Cretaceous Quantou Formation, Castle Peak on the port group, Yao Jiazu, Nenjianggroup and Sifangtai group, water group and Cenozoic quaternary system, third.Geothermal field of type (II) in low temperature geothermal field in the (-1) type. Thermal reservoir can be divided into the lower Cretaceous reservoir and the upper Cretaceous reservoir. The lower Cretaceous reservoir due to rock density, void is not developed, permeability of reservoir storage capacity of geothermal fluid and geothermal fluids, from the analysis of the information currently available, do not have the conditions of occurrence of geothermal resources.The upper Cretaceous reservoir is the main reservoir, the reservoir of the upper Cretaceous Qingshankou group and Quantou Formation, lithology of different particle size of sand. The buried depth of reservoir 600-1000m, reservoir thickness is about 170m. Reservoir temperature is 39.8-43 DEG C, hot water temperature is 43 degrees centigrade.Geothermal water hole stability 1000m3/d, medical bathing water quality is excellent, and it has high medical value.the geothermal fluid is non corrosive and scaling little water.The geothermal well drilling depth of about 1000m-1900, the well depth is the most economic and economicexploitation of geothermal resources, low cost, is the development of geothermal resources in suitable area.The geothermal resources in this area is relatively rich, according to the "code for geologic exploration of geothermal resources" (GB11615-2010) exploration for the pre feasibility stage, the amount of resources /reserves to provide pre exploitation quantity. Before the geothermal resources development and utilization in largearea should be further geothermal geology research, the combination of exploration and mining way graduallydevelopment and utilization.