中国大陆煤层气盆地双层次类型划分  

Classification on Dual Type of Coal Bed Methane Basin in China Mainland

作　　者：宋立军[1] 赵靖舟[1] 

机构地区：[1]西安石油大学油气资源学院,陕西西安710065

出　　处：《煤炭科学技术》2009年第10期100-104,共5页Coal Science and Technology

基　　金：国家重点基础研究发展规划(973计划)资助项目(2002CD211706);西安石油大学科技创新基金资助项目(206103);陕西省教育厅专项科研计划资助项目(07JK364)

摘　　要：查明煤层气盆地类型是确切了解煤层气盆地成藏条件优劣和科学进行煤层气战略开发的关键。从煤层气富集成藏的控制因素出发,采用盆地原型及其迭加改造分析方法,研究了聚煤盆地的时空演化及后期改造特征,结果表明:煤层气盆地内煤层气富集成藏受盆地聚煤期及后期改造类型的控制;煤层气盆地有克拉通内盆地、克拉通边缘或中间陆块盆地、坳陷盆地、裂陷盆地、前陆盆地5种聚煤盆地类型,有断褶热力改造型、断褶改造型、断褶埋藏改造型、断褶埋藏热力改造型、断褶剥蚀改造型、断块改造型、断块埋藏改造型、断块热力改造型、断块埋藏热力改造型等9种改造类型。根据"聚煤盆地原型+改造类型"的煤层气盆地双层次分类方案,将我国64个煤层气盆地划分为23种煤层气盆地组合类型。To ascertain the type of the coal bed methane basin is the key to actually understand the excellent or poor deposit condition of the coal bed methane basin and to scientifically conduct the coal bed methane strategy development. From the control factors of the coal bed methane rich integrated deposits, the basin model and the superposition reformed analysis method were applied to study the space-time evolution and the later rebuilding features of the coal accumulated basin. The results showed that the coal bed methane rich integrated deposits in the coal bed methane basin was controlled by the coal accumulation and the later rebuilding type of the coal bed methane basin. The coal bed methane basin is including the craton inner basin, eraton edge basin or craton middle land basin, depression basin, rifted basin and foreland basin which were the coal accumulated basins and including the 9 reconstructed types, such as the broken folded thermal reformed type, broken folded type, broken folded buried reformed type, broken folded buried thermal reformed type, broken folded weathered reformed type, broke block reformed type, broke block buried reformed type, broke block thermal reformed type and broke block buried thermal reformed type. According to the dual type classification plan of the ＂coal accumulated basin model ＋ reformed type＂ coal bed methane basin, the 64 coal bed methane basins in China could be divided to 23 combined type coal bed methane basins.

关 键 词：煤层气盆地 盆地分类 中国大陆区 

分 类 号：P618.13[天文地球—矿床学]