雄安新区地热资源评价与开发应用潜力分析

Evaluation of geothermal resources and their potential utilization in Xiongan New Area

在雄安新区地热地质条件分析基础上,采用开采系数法和热平衡法对地热流体储量和可开采量进行了计算评价.结果表明,雄安新区4000m以浅可开采热储层主要为馆陶组与基岩热储,地热流体总储存量为689.12亿m^3,折合标准煤57.65亿t,其中馆陶组和基岩热储的储存量分别为522.47亿m^3和66.65亿m^3.在现有开采条件下,地热流体年可开采量为1.73亿m3/a,折合标准煤299万t/a,其中馆陶组和基岩热储的可利用量分别为4200万m^3/a和1.31亿m^3/a.总结了雄安新区地热资源的当前开发利用现状,并从资源条件与应用潜力角度,对地热资源开发应用进行了初步区划.

Based on geothermal geological conditions in Xiongan New Area, the total reserves and exploitable reserves of geothermal fluid are evaluated using the exploration factor method and the heat balance method. Results show that the exploitable geothermal resources with the depth less than 4 000 m mainly include the Guantao and bedrock thermal reservoir. The total geothermal fluid reserves is 68.912 billion m^3, or 5.765 billion tons of coal equivalent, in which the Guantao and bedrock reserves are 52.247 billion m^3 and 6.665 billion m^3, respectively. Under the present exploitation conditions, the annual exploitable reserves of geothermal fluid is 0.173 billion m^3/a,or 2.99 million tons of coal equivalent, in which the Guantao and bedrock reserves are 42 million m^3/a and 0.131 billion m^3/a , respectively. The present geothermal exploitation status in Xiongan New Area is summarized, and the division into geothermal sources regions is made according to its application potentials.