岩性油气藏 ›› 2022, Vol. 34 ›› Issue (1): 106117.doi: 10.12108/yxyqc.20220111
何贤1,2, 闫建平1,2,3, 王敏4, 王军4, 耿斌4, 李志鹏4, 钟光海5, 张瑞湘2
HE Xian1,2, YAN Jianping1,2,3, WANG Min4, WANG Jun4, GENG Bin4, LI Zhipeng4, ZHONG Guanghai5, ZHANG Ruixiang2
摘要: 东营凹陷南坡F154区块沙河街组沙三段(Es3)砂岩储层渗透率低,孔隙结构复杂,产能预测难度大。根据岩心覆压物性测试、铸体薄片、恒速压汞、高压压汞及X射线衍射等资料,分析孔隙结构特征及控制因素;基于生产数据求得表征产能的参数采油强度;分析孔隙结构参数与采油强度的关系,对孔隙结构进行分类,通过孔隙结构类型测井识别,将采油强度刻度到测井曲线,建立了基于测井敏感变量的多参数采油强度预测模型,并利用实际井的生产数据进行验证,结果表明:大喉道数量决定了渗透率的高低;采油强度值越大,孔隙结构越好;采油强度较大的孔隙结构类型层段,通常自然伽马低,声波时差、深电阻率、深浅电阻率差值高。实际采油强度与预测采油强度相关系数大于0.9,计算结果符合生产预测的要求。该研究成果为复杂孔隙结构的低渗透砂岩储层产能预测提供了依据。
中图分类号:
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