页岩储集层综合评价因子及其应用——以四川盆地东南缘焦石坝地区奥陶系五峰组—志留系龙马溪组为例

发布时间：2018-03-14 20:28

本文选题：综合评价因子　切入点：物性评价因子　出处：《石油勘探与开发》2017年04期 　论文类型：期刊论文

【摘要】：针对目前页岩储集层评价方法的缺点,提出采用综合评价因子预测优质页岩储集层的分布规律和压裂施工的优势压裂段。综合评价因子由物性评价因子和压裂评价因子采用等效计算方法求得,物性评价因子结合测井得到的岩电参数利用矿物体积模型获取,表征储集层储集性;压裂评价因子利用考虑矿物组分的等效介质模型获取,表征储集层可压裂性。根据综合评价因子,结合岩心宏观、微观特征分析和测井资料,将四川盆地东南缘焦石坝奥陶系五峰组—志留系龙马溪组一段页岩储集层划分为4类储集岩,其中高自生硅页岩和高陆源硅页岩具有较优质的储集性和可压裂性,中陆源硅页岩次之,低陆源硅页岩较差。利用综合评价因子可对生产井水平段测井资料进行解释,分析不同储集岩类型占比,识别具有优质储集性和可压裂性的储集层,预测结果与现场压裂后生产效果对应较好。
[Abstract]:In view of the shortcomings of current shale reservoir evaluation methods, The comprehensive evaluation factor is used to predict the distribution law of high-quality shale reservoir and the superior fracturing section in fracturing operation. The comprehensive evaluation factor is obtained from physical property evaluation factor and fracturing evaluation factor using equivalent calculation method. The physical property evaluation factor combined with the logging data is obtained by mineral volume model, and the fracturing evaluation factor is obtained by using the equivalent medium model which considers the mineral components, the reservoir reservoir is characterized by the mineral volume model, and the fracturing evaluation factor is obtained by using the equivalent medium model which considers the mineral components. According to the comprehensive evaluation factors, combined with the macro and micro characteristics of the core analysis and logging data, The shale reservoir of Jiaoshiba Ordovician Wufeng formation and Silurian Longmaxi formation in the southeastern margin of Sichuan Basin is divided into four types of reservoir rocks. The middle continental silicon shale is the second and the low continental silicon shale is poor. The logging data of horizontal section of production wells can be interpreted by comprehensive evaluation factors, and different reservoir types can be analyzed to identify the reservoirs with high quality reservoir and fracturing ability. The predicted results correspond well with the production results after field fracturing.
【作者单位】：油气藏地质及开发工程国家重点实验室西南石油大学;中国石化江汉油田分公司石油工程技术研究院;
【基金】：“十三五”国家科技攻关重大专项(2016ZX05060) 国家自然科学基金(51404204)
【分类号】：TE37

【参考文献】