高丰度烃源岩测井评价方法在松辽盆地南部青一段的应用  

Application of Well Logging Technology to High Abundance Hydrocarbon Source Rock Evaluation in the 1st Member of Qingshankou Formation in the Southern Songliao Basin

作　　者：葛岩[1] 黄志龙[1] 马中远[1] 唐振兴[2] 贺君玲[2] 许恩爱[3] 

机构地区：[1]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [2]中石油吉林油田分公司,吉林松原138001 [3]中石油大港油田分公司第三采油厂,河北沧县061035

出　　处：《石油天然气学报》2011年第12期28-33,171,共6页Journal of Oil and Gas Technology

基　　金：国家油气资源战略选区专项(XQ-2009-02)

摘　　要：选取松辽盆地南部13口密集取样的探井作为标准井,在烃源岩地球化学分析的基础上,利用ΔlogR法建立实测有机碳含量TOC值与ΔlogR之间的关系,预测标准井周围探井的烃源岩TOC值。计算结果表明:厚层泥岩和砂泥岩薄互层中烃源岩计算TOC值与实测TOC值均具有良好的相关性,相关系数(R2)分别为81.15%、95.39%。结合国内外的研究成果及青一段烃源岩氢指数IH和TOC的拟合关系,将TOC大于2%的烃源岩定义为高丰度烃源岩,进而分析青山口组一段高丰度烃源岩在纵横向上的分布特征。高丰度烃源岩有机质质量及提供的资源量远大于中低丰度烃源岩,因此,有效识别高丰度烃源岩是开展工区油气资源精细评价的基础。By taking 13 exploration wells for successive hydrocarbon source rock samples in Southern Songliao Basin as criterion wells,the relationship between the measured value of TOC and ΔlogR was established by using ΔlogR method,the value of TOC of surrounding exploration wells was predicted.The result shows that the correlation between the obtained TOC value and the value of geochemical data is good,the correlation coefficients are 81.15 % in thick hydrocarbon source rock and 95.39% in sandstone and mudstone thin interbed respectively.Based on the domestic and abroad research results and the relationship between IH and TOC in the 1st member of Qingshankou Formation,the content of TOC above 2% is considered as high abundance hydrocarbon source rock,the vertical distribution of high abundance hydrocarbon source rock is analyzed.The high Therefore high abundance hydrocarbon source rock has higher contribution than the source rock with medium-low abundance hydrocarbon.The distinction of high abundant hydrocarbon source rock is the basis of precise hydrocarbon resource evaluation.

关 键 词：松辽盆地南部 青一段 高丰度烃源岩 ΔlogR法 氢指数 

分 类 号：P618.13[天文地球—矿床学] P631.81[天文地球—地质学]