Evaluation of hydrocarbon generating conditions of Palaeogene source rocks from Xidalinzi Sag in Sanjiang Basin
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摘要: 对三江盆地前进坳陷西大林子凹陷古近系烃源岩进行了系统的评价,并与依舒地堑古近系烃源岩进行了比较。结果表明,西大林子凹陷古近系泥岩发育,其中宝泉岭组泥岩最为发育;泥岩的有机质丰度从宝泉岭组二段—宝泉岭组一段—达连河组逐渐增大,有机质类型也有逐渐变好的趋势,但有机质热演化程度普遍较低,处于未成熟—低成熟热演化阶段;达连河组和宝泉岭组一段下部的泥质岩是西大林子凹陷的有效烃源岩。西大林子凹陷应具有一定的勘探前景。Abstract: The Palaeogene source rocks from the Xidalinzi Sag of the Qianjin Depression of the Sanjiang Basin were evaluated systematically and were compared with those from the Yishu Graben.In the Xidalinzi Sag,mudstones developed well in Palaeogene,especially in the Baoquanling Formation.From the 2nd member of the Baoquanling Formation to the Dalianhe Formation,the organic abundance of mudstones increased and the organic type gradually improved;however,the maturity of organic matters was lower,generally during the immature and low mature stages.The mudstones in the Dalianhe Formation and the lower part of the 1st member of the Baoquanling Formation served as the effective source rocks for the Xidalinzi Sag which has good exploration prospect.
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[1] 贾承造,郑民.东北白垩纪大三江盆地沉积构造演化及其残留盆地群的油气勘探意义[J].大庆石油学院学报,2010,34(6):1-13. [2] 刘云武,唐振国,刘文龙.三江盆地演化特征与油气勘探方向[J].石油天然气学报(江汉石油学院学报),2006,28(2):1-5. [3] 胡志方,马义忠,乔桂林,等.三江盆地石油地质条件与勘探前景[J].河南石油,2006,20(1):1-4. [4] 马小刚,王东坡,薛林福,等.三江盆地绥滨坳陷构造特征及其与油气的关系[J].长春科技大学学报,2000,30(1):46-49. [5] 孟庆龙,薛林福,滕菲,等.三江盆地白垩纪—第三纪地层剥蚀厚度恢复研究[J].吉林地质,2007,26(1):33-38. [6] 毕殿辉.三江盆地前进坳陷石油地质研究新进展[J].内蒙古石油化工,2011(11):134-135. [7] 赵霞,于兴河,易荣龙,等.三江盆地构造演化分析[J].内蒙古石油化工,2007(5):310-313.(下转第655页) -
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