李映艳;钱根葆;高阳;覃建华;黄文彪;卢双舫;朱键;王英伟;张代燕;

• 1:中国石油新疆油田分公司勘探开发研究院

• 2:中国石油新疆油田分公司

• 3:中国石油大学(华东)非常规油气与新能源研究院

摘要(Abstract)：

在原始含油饱和度恢复基础上,根据含油孔隙度(原始含油饱和度与孔隙度乘积)与单井采油强度的关系,建立砾岩致密油藏地质"甜点"分级标准;结合储层孔隙度及原始含油饱和度测井评价,开展准噶尔盆地玛湖凹陷百口泉组砾岩致密油藏地质"甜点"层段识别,描述不同级别"甜点"厚度平面分布特征。结果表明:砾岩致密油藏可划分为Ⅰ类"甜点"、Ⅱ类"甜点"、低效油层及非油层。玛18井区地质"甜点"主要发育于T1b1和T1b2层段,T1b1层段主要发育Ⅰ类"甜点";玛131井区地质"甜点"主要发育于T1b2和T1b3层段,T1b2层段主要发育Ⅱ类"甜点"和低效油层,T1b3层段的"甜点"发育程度与玛18井区T1b2层段的相当,以Ⅱ类"甜点"为主。单井产能最高的层段为发育Ⅰ类"甜点"的玛18井区的T1b1层段,其次为发育Ⅱ类"甜点"的玛18井区的T1b2层段和玛131井区的T1b3层段,产能最低的层段为玛131井区的T1b2层段。该结果对降低玛湖凹陷百口泉组勘探风险、实现砾岩致密油藏规模开发具有指导意义。

关键词(KeyWords)：砾岩致密油藏;地质“甜点”;原始含油饱和度;含油孔隙度;百口泉组;玛湖凹陷

Abstract:

Keywords:

基金项目(Foundation):中央高校自主创新科研计划项目(18CX02070A);; 国家科技重大专项(2017ZX05070);; 国家重点基础研究发展计划(973计划)项目(2015CB250906)

作者(Author):李映艳;钱根葆;高阳;覃建华;黄文彪;卢双舫;朱键;王英伟;张代燕;

Email:

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