摘要
建立了沼泽相泥岩作为烃源岩的评价标准；指出下三角洲平原分流间湾沼泽是煤成油源岩发育的有利场所；煤成油有两个阶段，早期成烃特征明显；煤成油的排驱具有较湖相泥岩更大的地质色层效应，低成熟时期有利于煤成油的排驱和运移，烃类通过相互连通的孔隙网络和裂隙与疏导层相连，构成煤成油排驱运移的主要通道．煤成油藏的形成是特定地质条件下的产物．
The assessment standard acted as source rock for coaly organic matter is established; it points out that lower delta plain and interdistributary bay swamps are favorable for the development of coal derived hydrocarbon, and the running water swamp facies is the most favorable facies zone for hydrocarbon generation from coal. The expulsion of oil derived from coal has greater geochromatographic effect than that from mudstone; the low mature stage ( R o<0.9%) is adventageous to the coal formed oil expulsion and primary migration. The hydrocarbons in its network are linked with carrier beds, through the pore network and fissure which are connected with each other, this constitutes the major pathway of expulsion. The coal derived oil pool is considered to be formed under a specially geological condition.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1999年第1期65-68,共4页
Journal of China University of Mining & Technology
基金
国家自然科学基金
石油天然气总公司"石油科技中青年创新基金
关键词
煤成油
源岩评价
生烃模式
油气藏
油气运移
coal formed oil, source rock assessment, hydrocarbon generation model, oil expulsion, petroleum reservoir
