Study On Sustainable Development And Utilization Countermeasure Of Geothermal Resources In Tianjin

With the wide range of distribution,less development difficulty and large temperature interval,geothermal resources are the dominant mineral resource in Tianjin.Geothermal resources have been applied for heating supply,hot springs bathing,industrial and agricultural production and other industries and it takes a lead in China in terms of current development and utilization scale.However,sustainable exploitation of geothermal resources in Tianjin are faced with challenges directly brought by the increasing intensity of resource utilization,the year-by-year decreasing thermal reservoir pressure and problematic issues including prominently supply and demand imbalance,ubiquitous extensive use of resources and inadequate protection upon resources.Base on the theory of sustainable development,the paper combined with practical work,has studied seriously the status quo of geothermal resources in Tianjin and focus on the existing exploration,whether the resource can support nowadays economic and social development,the scale and prominent utilization mode,the management system and the standardization of construction and so on.Also on the basis of a comparative study of the practical experience of geothermal sustainable development at home and abroad,the paper give a analysis of existing problems in geothermal resources development of current Tianjin.Analysis from the sustainable exploitation development of geothermal resource and the theory of sustainable development,the paper reach a conclusion that the reinjection problem is the key point of sustainable development of geothermal resource in Tianjin.With this problem,numerical simulation in typical areas is selected,to verify the data reliability and then to predict supposed development possibilities of thermal resources by keeping the existing exploitation way and measures in ten years,thirty years and fifty years respectively with three models.The analysis and the numerical simulation jointly come to a conclusion of the strategic development path sustainable exploitation of geothermal resources in Tianjin.The paper,focusing the local features of geothermal resources in Tianjin,also firstly comes up with targeted policies and measures for sustainable exploitation of geothermal resources in a systematic way.It is supposed to standardize the management and policies,enforce the exploration,enhance reinjection and protection of resources,improve quality and efficiency of exploitation and so on.The results in this paper have some innovation,especially in the systematic research of utilization and development of the medium-and-low temperature geothermal resource,and also have some practical significance for the reasonable development of sedimentary basin geothermal resources of Beijing-Tianjin-Hebei.