页岩油无机质和有机质采收率的评价方法  

Evaluation methods of oil recovery in inorganic and organic matter of shale oil

作　　者：宫厚健[1] 李子靳 吕威[1] 朱超凡[1] 桑茜[1] 李亚军[1] 董明哲[1] GONG Houjian;LI Zijin;LYU Wei;ZHU Chaofan;SANG Qian;LI Yajun;DONG Mingzhe(Key Laboratory of Unconventional Oil and Gas Development of Ministry of Education,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)非常规油气开发教育部重点实验室,山东青岛266580

出　　处：《实验技术与管理》2020年第10期30-34,37,共6页Experimental Technology and Management

基　　金：国家重大专项(2017ZX05049-006);国家自然科学基金项目(51774310);山东省自然科学基金项目(ZR2019MEE058)。

摘　　要：页岩油采收率的评价是其开发设计的重要基础,为了研究有机质和无机质中页岩油的动用对总产油量的贡献,结合油水饱和-离心方法和核磁共振技术,建立了有机质和无机质中页岩油采收率的评价方法,并通过该方法对鄂南长7段页岩油的采收率进行了评价。首先,分别对页岩岩心饱和油和水进行离心,通过核磁共振技术确定页岩油的总采收率和无机质采收率;其次,进行数据处理,建立采收率随最小可动半径的变化曲线,得到相同最小可动半径时的总采收率与无机质采收率,计算得到有机质采收率;最后,得到鄂南长7两块页岩岩心的采收率随驱动压力的变化曲线,研究结果可用于分析有机质和无机质采收率对总采收率的贡献。The evaluation of the oil recovery of shale oil is the foundation for the production design of shale oil.In order to study the contribution of shale oil in organic matter and inorganic matter to total oil production,an evaluation method of shale oil recovery rate in organic and inorganic matter is established by combining oil-water saturation centrifugation method and nuclear magnetic resonance technology,and the oil recovery rate of shale oil in Enan Chang 7 zone is evaluated by this method.Firstly,the saturated oil and water of shale core are centrifuged respectively,and the total recovery rate and inorganic recovery rate of shale oil are determined by nuclear magnetic resonance technology.Secondly,data processing is carried out to establish the curve of oil recovery with the minimum movable radius,and the total recovery rate and inorganic recovery rate are obtained when the minimum movable radius is the same,and the organic matter recovery rate is calculated.Finally,the curves of oil recovery versus driving pressure of two Enan Chang 7 shale cores are obtained.The results can be used to analyze the contribution of organic and inorganic recovery to total recovery.

关 键 词：页岩油 有机质采收率 无机质采收率 核磁共振 离心 

分 类 号：TE349[石油与天然气工程—油气田开发工程]