摘要
松辽盆地西斜坡有着较丰富的油砂资源。图牧吉地区油砂矿的形成与松辽盆地的发育演化、构造、地层发育以及油气聚集都有很大的关系。西部斜坡大量发育的砂体为运移至此的原油提供了储集体,大量的断层和地层剥蚀形成的不整合面提供了原油的运移通道,砂体上的致密泥岩阻碍了原油组分的大量挥发、氧化和生物降解。另外,松辽盆地丰富的生油源岩也是该地区形成油砂的必不可少的因素。分析认为,图牧吉油砂矿的发育主要受沉积相带、储层封盖条件、局部高点和岩性上倾尖灭、地表潜水动力与油气运移总量等地质因素的影响。
The west slop in Songliao basin abounds in oil sand resources, whose formation has a close relation to the geology, structure and oil-gas enrichment in Songliao basin. Large quantity of sand body provide a reservoir for crude oil, faults and strata erosion form the channel for oil to migrate, and the compact mudstone keeps crude oil from volatilizing, oxidizing and biodegradation. The abundant oil sources in Songliao basin are another necessary factor to form the oil sands. This paper presents that the Tumuji oil sands are largely controlled by sedimentary facies, reservoir- caprock, local peak, lithological change uparwards, surface hydrological dynamics and gross oil-gas migration quantity.
出处
《资源与产业》
2008年第6期83-86,共4页
Resources & Industries
关键词
油砂
发育特征
地质因素
图牧吉
oil sands
development characteristics
geological factors
Tumuji
