天津地热资源评价与综合研究

Evaluation and comprehensive study of geothermal resources in Tianjin

以4 000 m以浅的主要热储层为研究对象,通过总结天津地热资源特征及勘查现状,利用热储法结合水均衡法和数值耦合优化管理模型计算天津市主要热储层30 a热流体可采资源量及可采热量。结果表明:到2045年底,热储法结合水均衡法计算的热流体可采资源量和可采热量分别为27.012×10^(18)m^3和47.0×10^(16)J;数值耦合优化管理模型计算的热流体可采资源量和可采热量分别为26.6×10^(18)m^3和49.74×10^(16)J;2种方法计算结果基本一致。该计算结果可为天津市地热资源合理开发及科学管理提供依据。

The thermal reservoir above 4 000 m depth is the research object in this paper.Through summarizing the characteristics and exploration situation of the geothermal resources in Tianjin,the authors utilized the thermal reservoir method combined with water balance method and numerical coupling optimization management model method to calculate the 30 years’resource quantities and exploitable heat of the main thermal reservoir in Tianjin.The results show that by the end of 2045,according to the water balance method,the exploitable resource quantities and heat are 27.012×10 18 m 3 and 47.0×10 16 J respectively,and according to the numerical coupling optimization management model method,the exploitable resource quantities and heat are 26.6×10 18 m 3 and 49.74×10 16 J respectively.The results of the two methods are basically consistent.This could provide some reference for rational development,utilization and management of geothermal resources in Tianjin.