The Exploration Potential Zoning Evaluation Of Shandong Province Deep Geothermal Resources

The geothermal resources of Shandong Province distribute widely, reserve largely and it’s mining conditions are better, but geothermal resources exploration work needs to complete further,geothermal reserves needs further exploration and statistics, exploitation models need further research and development, the degree of geothermal resource utilization and overall economic benefits need to be further enhanced. This paper conducted a preliminary exploration.On the basis of existing deep geothermal resources exploration work, the geothermal resources of Shandong Province are divided. The heat storage type of Shandong Province includes layer heat storage and strip heat storage, heat storage layer is divided into the Paleogene-Neogene sandstone Fissures type heat storage layer and Cambrian-Ordovician limestone fissures karst layered heat storage.Geothermal resources are mainly concentrated in the Luxi uplift geothermal areas and northwest depression geothermal area, and the geothermal resources in layered heat storage is mainly hosted in Cenozoic fractured geothermal reservoir in the pore.By collecting, analyzing geothermal exploration data and on the basis of existing geological work to determine the calculated parameters. To evaluate and calculate detailly for the the total geothermal resources and the available geothermal resources on the use of heat storage volume method around all the hot zones. The province’s total geothermal resources about 3660.2283× 1018J, standard coal equivalent 2079.675×108t, available geothermal resources is about 421.9047×1018J, standard coal equivalent 239.7186×108t.To use the fuzzy mathematics comprehensive evaluation method, setting the evaluation principles and selecting the appropriate index, carried out the fuzzy calculation on the provinces of Shandong deep geothermal resource development potential and to be comprehensive evaluation of subjective and objective.Preliminary discussion for Shandong Province deep geothermal resources cascade development and utilization patterns. According to the district distribution of geothermal resources, geothermal reservoir type status, location and other factors, proposed main deep geothermal resources development models for all the hot zones of Shandong Province deep geothermal resources.Depending on the development projects and water temperature requirements,successively extracting heat from the geothermal fluid and obtaining fluid meeting the differently required parameters. Extracting heat from the geothermal fluid multilevel, Using of heat pump technology to further extract heat from the geothermal tail water,so as to make full use of geothermal energy and minimize the tail water temperatures. Determining the development models, and taking into account the economic strength around the hot zones, location, and social needs and other factors.These results on the efficient use of deep geothermal energy has a certain reference value.