松辽盆地长岭坳陷上白垩统页岩油有利区优选及资源潜力

松辽盆地长岭坳陷的页岩油勘探尚处于起步阶段,上白垩统页岩油资源潜力研究将为该坳陷页岩油勘探提供科学依据和理论支撑。从泥页岩空间展布特点和有机地球化学特点等方面对该区上白垩统嫩江组和青山口组富有机质页岩进行了系统的分析。研究结果表明:松辽盆地长岭坳陷嫩江组一、二段和青山口组一段整体具有泥页岩厚度大、分布面积广,高有机质丰度、演化程度适中和偏生油型干酪根的特点。在此基础上,对松辽盆地长岭坳陷上白垩统页岩油进行了有利区的预测并初步分析了勘探潜力。

Optimization of the favorable area and analysis of the resource potential for the upper Cretaceous shale oil in Changling Depression,Songliao Basin

Shale oil exploration is still in its infancy in Changling Depression of Songliao Basin.The research of shale oil resource potential of upper Cretaceous will provide the shale oil exploration of the depression the scientific basis and theoretical support.From the spatial distribution and organic geochemical characteristics,the rich organic matter shale of the upper Cretaceous Nenjiang formation and Qingshankou formation has been analyzed systematically.The results show that the first and second member of Nenjiang formation and the first member of Qingshankou formation generally have a large thickness, wide distribution area of the shale, high organic matter abundance, moderate maturity degree and generative kerogen in the Changling Depression of Songliao Basin.On that basis, the favorable area of the upper cretaceous shale oil is predicted and the exploration potential is preliminarily analyzed in the Changling Depression of Songliao Basin.