天然气勘探与开发2025，Vol.48Issue(5)：58-69,12.DOI:10.12055/gaskk.issn.1673-3177.2025.05.006
非稳态法渗透率测试技术创新历程与实践
Innovation process and practices of unsteady-state permeability testing technology
摘要
Abstract
To systematically review the development sequence,technical characteristics and industry application status of unsteady-state permeability testing technology,literature analysis and technical comparison were employed to investigate the theoretical foundations,key breakthroughs and limitations of pressure pulse decay,pressure drawdown,and pressure oscillation methods.In addition,the optimization and promotion pathways of the technology were discussed based on China's cases of technology introduction,localization progress and cross-domain expansion.The results show that,(i)the pressure pulse decay method addresses the difficulties in permeability testing of low-permeability samples by establishing a decay model of differential pressure between the upstream and downstream ends of core samples;(ii)the pressure drawdown method,utilizing real-time pressure data and automated control acquisition techniques,has become the mainstream technique for medium-to-high permeability overburden porosity-permeability combined measurement system,achieving full-range coverage for samples with permeabilities of 0.001-30 000 mD;(iii)the pressure oscillation method enables signal gain through periodic pressure variations,but its stringent requirements for inlet pressure control precision have hindered its large-scale application in oil and gas fields;and(iv)Chinese research institutions have developed distinctive techniques with"Chinese characteristics"through localized innovation,such as eliminating the requirement for regular sample shapes and pushing the lower testing limit to 10-7 mD.It is concluded that China's technological innovation and practices in the field of unsteady-state permeability testing not only advance oil and gas exploration and development technologies,but also provide new insights for testing ultra-low permeability media in fields such as aerospace.关键词
非稳态法/渗透率/岩心分析/压力脉冲衰减法/压力降落法/压力振荡法/技术创新/学科交叉Key words
Unsteady-state method/Permeability/Core analysis/Pressure pulse decay method/Pressure drawdown method/Pressure oscillation method/Technological innovation/Interdiscipline分类
能源科技引用本文复制引用
何家欢,余华洁,陈曼霏,王丽,王艳,刘婷芝,谭杰,张淳,赵诗琪..非稳态法渗透率测试技术创新历程与实践[J].天然气勘探与开发,2025,48(5):58-69,12.基金项目
中国石油天然气集团有限公司科技基础条件平台建设项目"重点油气田试验平台建设"(编号:2021ZP0402) （编号:2021ZP0402）
中国石油天然气股份有限公司重大专项课题"碳酸盐岩油气富集规律及有利区带研究"(编号:2023ZZ16YJ01) （编号:2023ZZ16YJ01）
中国石油西南油气田公司科技科学研究与技术开发项目"有水气藏开采中后期残余气开发机理实验探索"(编号:25XNYTSC030). （编号:25XNYTSC030）
