安徽淮南煤田新庄孜矿煤层二氧化碳封存量评价研究  

Assessment of carbon dioxide sequestration potential in coal seams of the Xinzhuangzi mine in the Huainan Coalfield,Anhui

作　　者：方惠京 张文永[2] 丁海[1] 刘卫彬 尚建华 FANG Huijing;ZHANG Wenyong;DING Hai;LIU Weibin;SHANG Jianhua(Exploration and Research Institute,Bureau of Coal Geology of Anhui Province,Hefei,Anhui,230088,China;Bureau of Coal Geology of Anhui Province,Hefei,Anhui,230088,China;Oil and Gas Survey Center,China Geological Survey,Beijing 100029,China)

机构地区：[1]安徽省煤田地质局勘查研究院,安徽合肥230088 [2]安徽省煤田地质局,安徽合肥230088 [3]中国地质调查局油气资源调查中心,北京100029

出　　处：《安徽地质》2024年第3期216-219,245,共5页Geology of Anhui

基　　金：安徽省公益性地质工作项目“淮南煤田二氧化碳地质封存条件与潜力调查评价”(编号:2023-g-1-21);“两淮矿区废弃矿井综合调查及资源化利用潜力评价”(编号:2021-g-2-14);安徽省重点研究与开发计划项目“安徽省多类型地质体二氧化碳封存模拟及潜力评价技术研究”(编号:2022107020029)联合资助。

摘　　要：二氧化碳地质封存是实现碳中和的兜底技术,安徽淮南地区广泛发育的不可采煤层、残留煤层是碳封存的潜在场所。煤层碳封存的潜力评价是碳封存工作的基础。本文综合物质平衡和有效容积法提出适合淮南煤田的碳封存量计算方法,并依据封存方式和封存有利区划分,对煤层碳封存潜力进行分级评价。将碳封存评价方法应用于已关井闭坑的淮南新庄孜煤矿,揭示该矿残留煤层的理论碳封存量为303.92万t,有效碳封存量为137.7万t,实际碳封存量为102.54万t,其中C13煤层的封存潜力最大。Geological sequestration of carbon dioxide is a fundamental technology for achieving carbon neutrality,and the extensively developed unmineable and residual coal seams in the Huainan area of Anhui Province serve as potential sites for carbon storage.The assessment of the carbon storage capacity of coal seams is the groundwork of all efforts toward carbon sequestration.This study combines the methods of material balance with effective volume,proposing a suitable estimation of carbon storage capacity in the Huainan Coalfield.Based on the storage mode,and division of favorable storage zones,a hierarchical assessment is conducted on the coal seam carbon sequestration potential.Application of the carbon sequestration assessment method to the abandoned Xinzhuangzi mine reveals the theoretical,effective and actual carbon storage capacities of 3.0392,1.377 and 1.0254 million tons,respectively,with the coal seam C13 exhibiting the highest sequestration potential.

关 键 词：二氧化碳地质封存 残留煤层 封存潜力 新庄孜矿 

分 类 号：P66[天文地球—地质学] P69