东北石油大学学报2026，Vol.50Issue(4)：101-112,12.DOI:10.3969/j.issn.2095-4107.2026.04.008
咸水层CO2注入动态分析及封存潜力评估方法
CO2 injection dynamic analysis and storage capacity evaluation in saline aquifers
摘要
Abstract
To enable rapid identification of reservoir properties and accurate evaluation of storage poten-tial during CO2 injection in saline aquifers,a two-phase RTA method suitable for injection scenarios is proposed.The mathematical model for CO2-brine two-phase flow incorporating stress-sensitive effects is developed.The model introduces pseudopressure and pseudotime functions,coupled with the material balance equation,provides an analytical solution.A set of diagnostic plots is constructed to segment the entire injection process into distinct two-phase flow regimes,while straight-line analysis is used to invert aquifer properties.The resutts show that,by integrating an injectivity forecasting model and accounting for both geological constraints and economic considerations,the method enables predictive analysis of CO2 injection performance and dynamic storage capacity.Validation using synthetic and field injection cases demonstrates the method s high accuracy in reservoir characterization and strong applicability in engineering practice.This result offers valuable support for field deployment and risk management of CO2 geological storage.关键词
CO2封存/两相流/咸水层/注入动态分析/储层参数反演/封存潜力评估Key words
CO2 storage/two-phase flow/saline aquifer/injection dynamic analysis/reservoir parameter inversion/storage potential assessment分类
资源环境引用本文复制引用
张蔷,芮振华,张凤远..咸水层CO2注入动态分析及封存潜力评估方法[J].东北石油大学学报,2026,50(4):101-112,12.基金项目
国家重点研发计划项目(2022YFE0206700) （2022YFE0206700）
