摘要
在深入分析松辽盆地北部各断陷天然气成藏条件的基础上 ,指出各断陷在烃源岩发育、有机质演化程度和盖层条件上存在明显的差异。莺山—庙台子、徐家围子、常家围子—古龙和林甸断陷烃源岩相对发育 ,有机质演化程度高 ,有利于寻找干气 ;绥化断陷有机质正进入成熟阶段 ,应以寻找湿气为主 ;北安、依安断陷和拜泉断陷群有机质演化程度低 ,应以寻找生物气为主。莺山—庙台子、常家围子—古龙、徐家围子和林甸断陷天然气保存条件相对较好 ,有利于天然气的富集成藏。
This paper analyzes the gas reservoir formation condition of all the rifts in the north part of Songliao Basin, and proposes the apparent difference of hydrocarbon source rock development, organic matter evolution and cap rock condition among the rifts. The hydrocarbon source rock of Yingshan—Miaotaizi, Xujiaweizi, Changjiaweizi—Gulong and Lindian rifts is well developed with a high evoluted organic matter, being favourable for seeking dry gas. The organic matter of Suihua rift is entering into the mature stage, being suitable for seeking wet gas. The organic matter of Beian, Yian and Baiquan rifts is lowly evoluted, being suitable for seeking biogas. The gas preserve condition of Yingshan—Miaotaizi, Changyiaweizi—Gulong, Xujiaweizi and Lindian rifts is relatively good for the enrichment and reservoir formation of gas.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2000年第4期4-5,共2页
Petroleum Geology & Oilfield Development in Daqing
关键词
松辽盆地
深层
断陷
成藏条件
差异性
Songliao Basin
deep formation
rift
reservoir formation condition
difference
