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Research progress of enhancement strategies for CO2 geological storage
- Low-Carbon Chemistry and Chemical Engineering Pages: 1-10(2026)
- 作者机构：
中国石油大学（北京） 非常规油气科学技术研究院 油气资源与工程全国重点实验室，北京 102249
- 作者简介：
- 基金信息：
DOI：10.12434/j.issn.2097-2547.20250331
CLC： X701Received：01 August 2025，
Revised：2025-09-16，
Online First：10 April 2026，
- 稿件说明：
移动端阅览
薛婉珍,刘琦.CO2地质封存强化策略研究进展[J].低碳化学与化工,
XUE Wanzhen,LIU Qi.Research progress of enhancement strategies for CO2 geological storage[J].Low-Carbon Chemistry and Chemical Engineering,
薛婉珍,刘琦.CO2地质封存强化策略研究进展[J].低碳化学与化工, DOI：10.12434/j.issn.2097-2547.20250331.
XUE Wanzhen,LIU Qi.Research progress of enhancement strategies for CO2 geological storage[J].Low-Carbon Chemistry and Chemical Engineering, DOI：10.12434/j.issn.2097-2547.20250331.
摘要
CO
2
地质封存作为碳捕集、利用与封存（CCUS）技术体系的重要组成部分，是实现“碳中和”目标的关键手段之一。CO
2
的长期安全封存由多种机制共同作用。深部咸水层、枯竭油气藏、深部不可采煤层和玄武岩是主要的CO
2
地质封存体。由于CO
2
黏度较低，在地层中的流动性较强，导致注入过程中波及体积受限，因此存在封存效率低、储层空间利用率不足等问题。采用CO
2
水气交替注入（CO
2
-WAG）、CO
2
泡沫注入、碳酸水注入（CWI）等策略能够有效提高CO
2
地质封存效率，还能提高封存过程的安全性和长期稳定性。首先介绍了CO
2
地质封存机理，然后综述了CO
2
-WAG、CO
2
泡沫注入和CWI 3种注入策略在提高封存效率和稳定性方面的研究进展和关键问题，结合典型工程实践揭示了现有技术的不足并提出优化方向，最后对比总结了相关技术特点及其工艺条件。本研究旨在为CO
2
地质封存技术的优化设计与工程应用提供参考。
Abstract
CO
2
geological storage
as an important component of the carbon capture
utilization and sequestration (CCUS) technology
is one of the key approaches to achieving the goal of carbon neutrality. The long-term secure storage of CO
2
is ensured through the combined action of multiple mechanisms. Deep saline aquifers
depleted oil and gas reservoirs
deep unmineable coal seams
and basalt formations are the main geological storage sites for CO
2
. Due to the relatively low viscosity of CO
2
and its strong mobility in formations
the sweep efficiency during injection is limited
which results in low storage efficiency and insufficient utilization of reservoir space. Strategies such as CO
2
water-alternating-gas injection (CO
2
-WAG)
CO
2
foam injection and carbonated water injection (CWI) can effectively improve the efficiency of CO
2
geological storage
while also enhancing the safety and long-term stability of the storage process. First the mechanisms of CO
2
geological storage were introduced
and then the research progress and key issues of three injection strate
gies (CO
2
-WAG
CO
2
foam injection and CWI) in improving storage efficiency and stability were reviewed. Combined with typical engineering practices
the shortcomings of existing technologies were revealed and optimization directions were proposed. Finally
the technical characteristics and process conditions of the relevant technologies were comparatively summarized. This study aims to provide references for the optimization design and engineering application of CO
2
geological storage technologies.
关键词
Keywords
references
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