淮南煤田煤系砂岩含气性分析  

Coal Measures Sandstone Gas-bearing Property Analysis in Huainan Coalfield

作　　者：刘会虎 薛俊华[1] 赵伟 黄晖[3] 兰天贺[2] 徐宏杰 任波[1] 黄艳辉 Liu Huihu;Xue Junhua;Zhao Wei;Huang Hui;Lan Tianhe;Xu Hongjie;Huang Yanhui(State Key Laboratory of Deep Coal Mining and Environment Protection,Ltd.,Huainan,Anhui 232001;School of Earth and Environment,Anhui University of Science and Technology,Huainan,Anhui 232001;Huainan Mining Industry（Group）Co.,Ltd.,Huainan,Anhui 232001)

机构地区：[1]淮南矿业(集团)有限责任公司深部煤层开采和环境保护国家重点实验室,安徽淮南232001 [2]安徽理工大学地球与环境学院,安徽淮南232001 [3]淮南矿业(集团)有限责任公司,安徽淮南232001

出　　处：《中国煤炭地质》2018年第9期12-18,共7页Coal Geology of China

基　　金：中国博士后科学基金(2016M601992);安徽省自然科学基金(1608085QD81);淮南矿业直管项目(HNKY JT JS(2012)20);安徽省博士后研究人员科研活动经费资助项目(2017B171)

摘　　要：为查明淮南煤田煤系致密砂岩气赋存,通过测井解释成果分析,深入剖析了淮南煤田煤系砂岩气的含气性分布特征。研究结果表明:淮南煤田砂岩气主要赋存于二叠系煤系地层的粉砂岩中,不同钻孔显示砂岩气储层层数不等,潘三矿没有砂岩气储层,丁集矿致密砂岩气储层从含气层-气水同层-低产气层-气层的层数从4层到至9层,含气层数及富气差异程度明显,石炭系没有明显含气储层,没有砂岩气赋存;研究区二叠系砂岩气与煤系其它类型成因气存在5种共生组合关系:顶部页岩气向下运移形成砂岩气、底部煤层气向上运移形成砂岩气、顶底部页岩气向中间砂体运移形成砂岩气、顶部煤层气和底部页岩气向中间砂体运移形成砂岩气、底部页岩气向上运移形成砂岩气。To identify coal measures compact sandstone gas hosting in the Huainan coalfield, through well logging interpreted result analysis, thoroughly analyzed sandstone gas gas -bearing distribution features in the coalfield. The result has shown that the sandstone gas is mainly hosted in Permian coal measures siltstone; the reservoir layer number is different in boreholes. In the Panji No. 3 coalmine is without sandstone gas reservoir; while in the Dingji coalmine, compact sandstone gas reservoir gas - bearing layer gas - water layer low yield gas layer gas layer series number is from 4 to 9, and differences on gas - bearing layer number and gas - rich properties are obvious. In the Carboniferous strata have no obvious gas -bearing reservoir, without sandstone gas hosted. In the study area Permian sandstone gas and coal measures other typed gases have existed 5 paragenetic associations ： top shale gas migrating downward; bottom CBM migrating upward; top shale gas migrating toward middle sand mass; top CBM and bottom shale gas migrating toward middle sand mass and bottom shale gas migrating upward to form sandstone gas.

关 键 词：淮南煤田 煤系地层 致密砂岩气 测井解释 

分 类 号：P618.130.1[天文地球—矿床学]