吉林大学学报(地球科学版) ›› 2017, Vol. 47 ›› Issue (6): 1668-1677.doi: 10.13278/j.cnki.jjuese.201706106
刘祚冬1, 王红军2, 马锋1, 吴珍珍1, 杜商3, 汪永华1
Liu Zuodong1, Wang Hongjun2, Ma Feng1, Wu Zhenzhen1, Du Shang3, Wang Yonghua1
摘要: 重油具有黏度大、大规模连续聚集、储层非均质性强、难于开采等特征,利用传统的体积法评价其资源潜力无法揭示重油资源在空间三维尺度上的富集差异性或预测"甜点区"的分布。空间网格插值法基于地理信息系统技术,以成藏组合为基本评价单元,划定各单元分布面积,统计和分析每个成藏组合储层的厚度、含油饱和度、孔隙度、采收率4个关键参数的空间分布规律,并根据实际情况选择反距离加权插值、克里金插值等方法进行插值,实现关键参数网格图的空间叠加计算,最终计算出每个成藏组合的重油资源丰度图,定量表征重油资源的空间分布,厘定重油"甜点区"。将该方法应用于中东扎格罗斯褶皱带重油资源潜力评价,揭示三叠系-侏罗系Butmah成藏组合、侏罗系成藏组合、白垩系成藏组合以及第三系成藏组合总可采资源潜力为140亿t。其中,未来有利勘探目标为白垩系成藏组合,可采资源量为85亿t。初步预测"甜点区"位于盆地西南部。
中图分类号:
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