摘要
松辽盆地北部古中央隆起带基底气藏岩性复杂,共有20多种岩性,岩性东西分带、南北分块,受基底断裂控制明显。其中‘花岗岩’和‘花岗岩+糜棱岩’较发育,易被风化形成风化壳储层。基岩气藏的气源主要来源于徐家围子断陷沙河子组地层,通过断裂运移至风化壳储层聚集成藏;同时,基岩内部也具有生烃能力,由于研究资料及技术原因,无法对生烃强度和生烃量进行进一步分析。
The Basement lithology of Palaeocentral Uplift Belt of North Songliao Basin is complex. It has 20 kinds of lithology. Lithologic is obviously controlled by thebasement fault. The granite and granite-mylonite is developed,easily weathering crust of weathering reservoir. The main source rock is the Shahezi formation of Xujiaweizi fault depression. The gas in the Weathering crust is comes from Shahezi formation by using the faults. At the same time,the bedrock interior also have the ability of hydrocarbon,the research data and technical reasons,can not be further analysis of the hydrocarbon generation intensity andquantity of hydrocarbon generation.
出处
《内蒙古石油化工》
CAS
2014年第2期151-152,共2页
Inner Mongolia Petrochemical Industry
关键词
松辽盆地北部
古中央隆起带
岩性
气藏类型
North Songliao Basin
Palaeocentral Uplift Belt
lithology
gas reservoir type
