河南省地热资源概况及开发利用区划探讨

General situation of geothermal resources and discussion on division of development and utilization in Henan Province

河南省地热资源较为丰富,经估算,全省埋深4000 m以浅新生界热储层地热可开采热水总量为26844.90×10^(4) m^(3)/a、可利用热能总量为32413.61×10^(12) J/a,折合标准煤1107737.50 t/a。地热类型可分为沉降盆地传导型、隆起山地对流型和对流—传导混合型,热源主要来自现代活动性大断裂沟通深部幔源岩浆热及沿断裂破碎带产生的机械摩擦热,水源主要为大气降水,成因模式为深循环。基于河南省地热资源赋存条件,选取地热勘查区划、开采潜力模数、黄河高质量发展区、冬季清洁供暖城市、旅游发展规划、乡村振兴规划、地热规模化利用7个因子,运用AHP法进行地热开发利用区划,按优先开发区、鼓励开发区、限量开发区、暂缓开发区四级进行区划,指导全省地热合理利用,以响应习近平生态文明思想与生态文明建设理论。

Henan Province is rich in geothermal resources,by estimation,the total amount of geothermal exploitable hot water in the shallow Cenozoic thermal reservoir with a buried depth of 4000 m in the province is 26844.90×10^(4) m^(3)/a,the total amount of available heat energy is 32413.61×10^(12) J/a,equivalent to standard coal 1107737.50 t/a.Geothermal type can be divided into subsidence basin conduction type,uplift mountain convection type and convection conduction mixed type.The heat source is mainly derived from the mantle derived magmatic heat and the mechanical friction heat generated along the fracture zone,the water source is mainly atmospheric precipitation,and the genetic model is deep circulation.Based on the occurrence conditions of geothermal resources in Henan Province,seven factors,including geothermal exploration zoning,exploitation potential modulus,high-quality development area of the Yellow River,clean heating city in winter,tourism development planning,rural revitalization planning,and large-scale utilization of geothermal resources,are selected to carry out geothermal development and utilization zoning by using AHP method.It is divided into four levels:priority development zone,encouraged development zone,limited development zone and suspended development zone to guide the rational utilization of geothermal resources in Henan Province.Based on Xi Jinping′s theory of ecological civilization and theory of ecological civilization construction.