页岩表观渗透率影响因素
Influencing Factors of Shale Apparent Permeability
DOI: 10.12677/JOGT.2022.441001, PDF,   
作者: 蒋 柯, 周 文：成都理工大学油气藏地质及开发工程国家重点实验室，四川 成都；成都理工大学能源学院，四川 成都；曾 萍：成都理工大学能源学院，四川 成都；中国石油大学(北京)石油工程学院，北京；蒲飞龙, 宋威国, 唐 潮：成都理工大学能源学院，四川 成都
关键词: 页岩；表观渗透率；影响因素；孔隙结构；孔隙类型；渗流机理；Shale； Apparent Permeability； Influencing Factors； Pore Structure； Pore Types； Seepage Mechanism
摘要: 页岩是渗透率最小的沉积岩，其表观渗透率受多重因素的影响和制约。为了探究影响页岩表观渗透率的主控因素，对压力、孔隙结构、孔隙类型和微观渗流机理等4大类13小类页岩表观渗透率的因素影响进行全面分析。结果表明，压力和孔径是页岩表观渗透率的主控因素，应力敏感效应、基质收缩效应、壁面粗糙度、阻塞率、迂曲度、页理、有机孔隙、无机孔隙、黏滞流动、扩散、滑脱流动、吸附、真实气体效应等因素均与地层压力和孔径密切相关。明确页岩表观渗透率因素有利于指导页岩渗透率测试及页岩气储层的勘探开发。
Abstract: Shale is the sedimentary rock with the lowest permeability, and its apparent permeability is af-fected and restricted by multiple factors. In order to study the main controlling factors affecting the shale apparent permeability, four classes and 13 subclasses of shale apparent permeability influencing factors, including pressure, pore structure, pore types and microscopic seepage me-chanism, were analyzed comprehensively. The results show that the pressure and pore size are the main controlling factors of shale apparent permeability. Stress sensitivity effect, matrix shrinkage effect, wall roughness, blocking rate, tortuosity, fissile, organic pores, inorganic pores, viscous flow, diffusion, slippage flow, adsorption and real gas effect are all closely related to formation pressure and pore size. Determining the factors of shale apparent permeability is beneficial to guiding permeability testing, exploration and development of shale gas reservoir.
文章引用：蒋柯, 曾萍, 蒲飞龙, 宋威国, 周文, 唐潮. 页岩表观渗透率影响因素[J]. 石油天然气学报, 2022, 44(1): 1-9. https://doi.org/10.12677/JOGT.2022.441001

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