岩性油气藏 ›› 2017, Vol. 29 ›› Issue (6): 128134.doi: 10.3969/j.issn.1673-8926.2017.06.016
甘立琴, 苏进昌, 谢岳, 李超, 何康, 来又春
GAN Liqin, SU Jinchang, XIE Yue, LI Chao, HE Kang, LAI Youchun
摘要: 为揭示曲流河储层隔夹层对剩余油分布和油层水淹的影响,通过分析物性参数与米采油指数关系得出隔夹层物性上限,并选择自然伽马、电阻率、厚度为主要敏感参数,采用灰色关联法进行权重系数计算,得到隔夹层判别指数及综合判别图版。在秦皇岛32-6油田南区明化镇组下段Ⅰ油组应用证实,该判别图版符合率达96%;在剩余油滞留带底部和油层水淹层顶部进行调整挖潜,生产效果明显。在曲流河储层隔夹层发育区,隔夹层延缓采油井含水上升速度;隔夹层不发育区域,易形成水串区,导致相邻隔夹层发育区形成剩余油滞留区。这种认识对油田开发中后期产能挖潜有指导作用。
中图分类号:
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