陕西神禾塬地区地热资源勘查及评价

Exploration and Evaluation of Geothermal Resources in Shenheyuan of Shaanxi Province

神禾塬地处关中盆地,地热资源丰富。为了对神禾塬某地的地热资源进行勘查和评价,为后期的换热量计算和设计提供依据,通过收集资料、现场调查等方式查明了勘查区的地层特征、地质构造、热储特征,采用高精度测温光纤测得井温并通过线性回归获得各热储层的地温梯度,通过综合的地质分析和热储法,计算分析了地热井单井的地热资源储量。结果表明:测算的平均地温梯度为3.26℃/100 m,与区内其他地热井接近,本地区的地热资源分布均匀,地温梯度变化不大;地热井单井的地热资源储量约为8.21×10^(15) J。地热勘查结果可为后续地热能开发利用提供依据。

Shenheyuan is located in the Guanzhong Basin,with abundant geothermal resources.This article aims to explore and evaluate the geothermal resources in a certain area of Shenheyuan,providing a basis for later heat exchange calculation and design.By collecting data and conducting on-site investigations,the geological characteristics,geological structures,and thermal storage characteristics of the exploration area are identified.High precision temperature measuring optical fibers are used to measure well temperatures,and the geothermal gradients of each thermal reservoir layer are obtained through linear regression.Through comprehensive geological analysis and thermal storage methods,the geothermal resource reserves of a single geothermal well are calculated.The results show that the calculated average geothermal gradient is 3.26℃/100 m,which is close to other geothermal wells in the area.The distribution of geothermal resources in this area is uniform,and the geothermal gradient does not change much;The geothermal resource reserve of a single geothermal well is approximately 8.21×10^(15) J.Geothermal exploration provides a basis for the subsequent development and utilization of geothermal energy.