测井技术2025，Vol.49Issue(2)：244-254,11.DOI:10.16489/j.issn.1004-1338.2025.02.012
页岩气流动能力分级测井评价方法研究
Well Log Evaluation Method of Shale Gas Flow Capacity
摘要
Abstract
The gas-water two-phase seepage capacity of shale gas reservoir has an important influence on its productivity,but there is no method to evaluate the shale gas flow capacity directly by geophysical means such as logging.Three-dimensional digital core models of inorganic pores,organic pores and micro-fractures are established by core focused ion beams-scanning electron microscopy(FIB-SEM).The gas flooding water seepage of shale pores and fractures under different wetting conditions is simulated based on volume of fluid(VOF),and the characteristics of endpoint water saturation are obtained.Based on the understanding of the flow capacity of different pore types obtained from the simulation results,the equivalent flow capacity of each core can be obtained by combining the statistics of different pore types extracted from the large-scale mosaic scanning electron microscopy(Modular Automated Processing System,MAPS).Based on the analysis of petrophysical experiment and logging response,the flow capacity calculation equation and a model for evaluating flow capacity based on logging data are established.The actual logging data processing results show that the evaluation model proposed in this paper has high accuracy,and can obtain continuous shale gas flow profile.It can be used to guide shale gas exploration and development.关键词
页岩气/孔隙类型/流动能力/测井评价/多元回归Key words
shale gas/pore type/flow capacity/well log evaluation/multiple regression引用本文复制引用
聂昕,孙传瑞,郝越翔,王本强,林伟,李秉科,王晨晨,张吉振,韩登林..页岩气流动能力分级测井评价方法研究[J].测井技术,2025,49(2):244-254,11.基金项目
国家自然科学基金项目"纹层状陆相页岩油储层岩石多尺度数字岩心建模及导电性研究"(42474159) （42474159）
油气资源与勘探技术教育部重点实验室(长江大学)第三批青年创新团队资助项目"非常规储层数字岩石物理及测井评价"(PI2023-03) （长江大学）
