深圳大学学报（理工版）2025，Vol.42Issue(1)：41-49,9.DOI:10.3724/SP.J.1249.2025.01041
盐水层CO2封存稳定性评价指标建立及储层优选
Establishment of evaluation indexes and target formation selection for CO2 storage stability in saline aquifer
摘要
Abstract
CO2 storage in saline aquifers is considered to be pathway major approach to mitigating the greenhouse effect.However,the long-term CO2 storage stability is affected by reservoir characteristics and injection parameters,and there is currently a lack of unified indicators to evaluate the long-term CO2 storage stability in saline aquifers.We propose using storage volume and conversion or storage rate as factors to determine the long-term CO2 storage stability.By considering the main controlling factors,we establish evaluation indexes of different storage modes for long-term stability of CO2 storage based on numerical simulations,nonlinear multiple regression analysis,and the coefficient of variation method.We employ an expert weighting method to determine the weights of tectonic,residual,dissolution,and mineralized sequestration,thereby creating comprehensive evaluation indexes for long-term stability of CO2 storage by considering all four storage methods,and the CO2 storage evaluation indexes are classified into three levels:stable,moderately stable and unstable,enabling assessments of CO2 storage stability under specific reservoir conditions and gas injection intensities of the mine site.Additionally,we establish a framework for long-term CO2 storage stability evaluation indexes under the influence of reservoir and injection parameters,providing valuable reference for selecting brine layers suitable for long-term stable CO2 storage.关键词
碳储科学与工程/CO2封存/盐水层/数值模拟/稳定性/评价指标/储层优选/渗透率Key words
carbon storage science and engineering/CO2 sequestration/saline aquifer/numerical simulation/stability/evaluation indicators/reservoir optimization/permeability分类
能源科技引用本文复制引用
崔传智,李安慧,李惊鸿,王俊康,马思源..盐水层CO2封存稳定性评价指标建立及储层优选[J].深圳大学学报（理工版）,2025,42(1):41-49,9.基金项目
National Natural Science Foundation of China(51974343) （51974343）
Major National Science and Technology Projects of China(16ZX05010-002-007) 国家自然科学基金资助项目(51974343) （16ZX05010-002-007）
国家科技重大专项资助项目(2016ZX05010-002-007) （2016ZX05010-002-007）
