岩性油气藏 ›› 2021, Vol. 33 ›› Issue (1): 3745.doi: 10.12108/yxyqc.20210104
郭秋麟1, 吴晓智1, 卫延召1, 柳庄小雪1, 刘继丰2, 陈宁生1
GUO Qiulin1, WU Xiaozhi1, WEI Yanzhao1, LIU-ZHUANG Xiaoxue1, LIU Jifeng2, CHEN Ningsheng1
摘要: 2019年在准噶尔盆地钻探的前哨2探井取得重大突破,预示着盆地腹部侏罗系具有广阔的勘探前景。腹部发育远源和次生油气藏,源与储之间距离大,油气运移路径决定了油气藏的分布。基于研究区侏罗系油气主要沿断裂垂向运移、沿砂体侧向运移的特点,制定了以三维地质建模、参数研究和模拟计算为核心的研究思路,提出了断面网格的三维地质建模方法和考虑断裂因素的三维侵入逾渗模型及原油含蜡量定量模型,构建了侏罗系三维地质体,包括54 844个体网格、12 370个面网格及相应的地质参数。模拟得出:运移路径与油气藏分布相关性较好,原油含蜡量与实测值接近,模拟的运移路径与勘探结果一致,原油含蜡量定量模型是有效的。在综合考虑油气运移路径、含油气饱和度和沉积相分布等因素后,确定5个有利区,分别为成1井区、石东1井西区、滴西2井区、董1井北区和盆6井北区。该研究成果可为研究区潜在勘探目标分布的预测提供参考。
中图分类号:
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