松辽盆地西斜坡小太平山地区油砂富集规律与成藏控制因素研究

Study on oil sand enrichment and reservoir-forming controlling factors in Xiaotaipingshan area on the west slope of Songliao Basin

松辽盆地西斜坡小太平山地区从浅至深共发现两个含油砂层位,为嫩江组含油砂层以及姚家组含油砂层。油砂矿的形成过程是各种成藏要素在有效的匹配下,油从分散到集中的转化过程,能否有丰富的油砂聚集,形成储量丰富的油砂藏且被保存下来,主要取决于生油层、储集层、盖层、运移、圈闭和保存等成藏要素的优劣,松辽盆地油藏的形成、分布与富集是多方面因素综合作用的结果。

There are two oil-bearing sand beds from shallow to deep in Xiaotaipingshan area on the west slope of Songliao Basin,which are oil-bearing sand beds of Nen River Formation and Yaojia Formation.The forming process of oil sands is a process of oil transformation from dispersion to concentration under the effective matching of various reservoir-forming elements.Whether rich oil sands can be accumulated to form oil sands with rich reserves and be preserved,the formation,distribution and enrichment of oil reservoirs in Songliao Basin are the result of many factors,which mainly depend on the quality of oil source,reservoir,cap rock,migration,trap and preservation.