周口凹陷区(周口段)地热资源评价

Evaluation of geothermal resources in Zhoukou Depression(Zhoukou Section)

地热能是集热、矿、水为一体的可再生绿色能源。为保障周口凹陷区地热资源的可持续利用,实现节能、减排,保护环境,通过对周口凹陷区的地质背景、地热地质条件、热储赋存条件的分析,阐述了该区具有经济价值的新近系热储层的赋存特征,建立热储地质模型,对周口凹陷区(周口段)2000 m以浅的地热资源储量进行评价。评价结果表明,该区主采热储层地热流体温度40~70℃,2000 m以浅地热流体资源储存量为24560.08×10^8 m^3、热能储存量为104123.24×10^16 J,地热流体可开采量为4234.58×10^4 m^3/a,按照100年保证开采年限,可采热能为161.30 MW,属低温大型地热田;分析了该区地热水资源利用现状及存在的问题,并对合理开发利用与保护地热水资源提出了合理化建议。

Geothermal energy is a renewable green energy which integrates heat,mineral and water.In order to ensure the sustainable utilization of geothermal resources,to realize energy conservation,emission reduction and protect the environment in Zhoukou Depression,through analysis of geological background,geothermal geological conditions and storage conditions of thermal reservoir in Zhoukou Depression,this paper expounds the storage characteristics of Neogene thermal reservoir with economic value in Zhoukou Depression,establishes the geological model of thermal reservoir,and makes an analysis of the geological background,geothermal geological conditions and storage conditions of Zhoukou Depression(Zhoukou Section)in 2000 m to evaluate the shallow geothermal resource reserves.The evaluation results showed that the geothermal fluid temperature of the main thermal reservoir was 40~70℃,the shallow geothermal fluid resource storage capacity of 2000 m was 24560.08×10^8 m^3,the thermal energy storage capacity was 104123.24×10^16 J,and the exploitable geothermal fluid capacity was 4234.58×10^4 m^3/a.According to the 100 years guaranteed exploitation period,the exploitable thermal energy was 161.30 MW,which was a large geothermal field with low temperature.This paper analyzed the present situation and existing problems of geothermal water resources utilization in this area,and put forward reasonable suggestions for rational development,utilization and protection of geothermal water resources.