摘要
通过对元坝地区6口单井油气主要富集层段二叠系长兴组地层进行薄片样品系统采集,依靠显微镜观察分析,识别出该区30种岩石类型及其4种沉积物来源,并鉴定出该区具有深水沉积特征的放射虫硅质岩,为该区长兴组早期深海沉积环境的确立明确了方向。
Based on thin section collection and microscope observation by six wells of Changxing Formation in Yuanba area,30 types of rocks and four types of sediment sources were identified.Radiolarian chert was identified firstly in this area,which is the evidence of the existence of deep-sea sedimentary environment in early Changxing Formation.
出处
《岩性油气藏》
CSCD
2012年第2期72-76,共5页
Lithologic Reservoirs
基金
国家重大专项子课题"大型油气田及煤层气开发"(编号:2008ZX05023-002-003)资助
关键词
岩石学
海绵礁
放射虫
长兴组
元坝地区
petrology
sponge reef
radiolarian
Changxing Formation
Yuanba area
