海拉尔盆地查干诺尔断陷烃源岩特征评价
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摘要
查干诺尔断陷在勘探过程中显示出较好的油气成藏潜力,通过对断陷内所有单井有机地化指标进行分析,根据有机质丰度、干酪根类型、有机质演化特征并结合以往二维地震解释成果进行烃源岩评价和资源潜力分析。分析结果表明:烃源岩集中分布于大磨拐河组与南屯组,有机质类型以Ⅱ型、Ⅲ型干酪根为主,南屯组-大磨拐河组现今的烃源岩厚度一般为350~730m,其中优质烃源岩主要集中在南屯组。
The rift Chagannuoer in the exploration process showed good potential for hydrocarbon accumulation. Based on the analysis of single well organic geochemical indicators,according to the abundance of organic matter,the type of kerogen,organic matter evolution combined with the previous two-dimensional seismic interpretation evaluation of source rocks and potentiality of resources are analyzed. The analysis results show that: source rocks are concentrated in the Damoguaihe Formation and Nantun Formation,the type of organic matter are main of type II and type III kerogen,the thickness of the source rocks in Nantun and Damoguaihe Formation is 350m in to 730m,The best source rocks are in the Nantun Formation.
引文
1 邹宗义.海拉尔盆地查干诺尔凹陷石油地质特征及勘探前景.内蒙古石油化工,2009;23(1):141—144
    2 冯志强,张晓东,任延广,等.海拉尔盆地油气成藏特征及分布规律.大庆石油地质与开发,2004;23(5):16—19
    3 张长俊,龙永文.海拉尔盆地沉积相特征与油气分布.北京:石油工业出版社,1995
    4 卢双舫.有机质成烃动力学理论及其应用.北京:石油工业出版社,1996
    5 王吉茂,李恋.烃源岩原始有机质丰度和类型的恢复方法.沉积学报,1997;15(2):43—48

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