发电技术 ›› 2022, Vol. 43 ›› Issue (4): 562-573.DOI: 10.12096/j.2096-4528.pgt.22090

• 碳捕集、利用与封存技术 • 上一篇    下一篇

CO2咸水层封存关键参数及其实验表征技术研究进展

叶航, 郝宁, 刘琦   

  1. (温室气体封存与石油开采利用北京市重点实验室(中国石油大学(北京) 非常规油气科学技术研究院),北京市 昌平区 102249
  • 收稿日期:2022-05-05 出版日期:2022-08-31 发布日期:2022-09-06
  • 作者简介:叶航(1997),男,博士研究生,研究方向为CCUS与提高采收率,yehang_cup@163.com
    刘琦(1984),男,副研究员,博士生导师,研究方向为低碳能源工程与油气田化学工程,本文通信作者,liuqi@cup.edu.cn
  • 基金资助:
    国家自然科学基金项目(51604288);中国石油大学(北京)科研基金项目(ZX20200133)

Review on Key Parameters and Characterization Technology of CO2 Sequestration Mechanism in Saline Aquifers

Hang YE, Ning HAO, Qi LIU   

  1. (Beijing Key Laboratory for Greenhouse Gas Storage and CO2-EOR(Unconventional Petroleum Research Institute, China University of Petroleum-Beijing), Changping District, Beijing 102249, China
  • Received:2022-05-05 Published:2022-08-31 Online:2022-09-06
  • Supported by:
    National Natural Science Foundation of China(51604288);Science Foundation of China University of Petroleum-Beijing(ZX20200133)

摘要:

CO2咸水层封存作为碳捕集、利用与封存(carbon capture, utilization and storage,CCUS)技术的重要一环,是实现碳中和目标的有效手段,完善咸水层封存机理研究方案对于准确评估CO2咸水层封存潜力具有重要意义。讨论了CO2咸水层封存机理,总结了实验过程中常用的表征技术,论述了不同参数对咸水层封存的影响,并对该技术的未来发展做出了展望。针对不同的封存机理研究,咸水层封存的表征技术主要包括储层岩石表征、岩心驱替实验、溶解性实验、矿化反应实验等。CO2咸水层封存潜力受残余水饱和度、残余气饱和度、溶解度和盐析程度等多个参数的影响,因此选用合适的表征技术确定相关参数对于确保封存潜力评估的准确性至关重要。此外,开展全过程封存机理分析和海上咸水层封存项目研究是该技术未来研究的重要方向。

关键词: 碳捕集、利用与封存(CCUS), CO2地质封存, 咸水层封存, 封存潜力, 评估

Abstract:

As an important part of carbon capture, utilization and storage(CCUS) technology, CO2 sequestration in saline aquifers is an effective means to achieve the goal of carbon neutralization. Improving the research scheme of CO2 sequestration mechanism in saline aquifers is of great significance to accurately evaluate the storage potential. The storage mechanism of CO2 sequestration in saline aquifers was discussed, the commonly used characterization techniques were summarized, the effects of different parameters on sequestration in saline aquifers were discussed, and the future development of this technology was prospected. According to the study of different storage mechanisms, the characterization technology of sequestration in saline aquifers mainly includes reservoir rock characterization, core flooding experiment, solubility experiment, mineralization reaction experiment and so on. The storage potential of CO2 sequestration in saline aquifers is affected by many parameters, such as the residual water saturation, residual gas saturation, solubility and salt precipitation. Therefore, it is very important to select appropriate characterization techniques to determine the relevant parameters to ensure the accuracy of storage potential evaluation. In addition, the analysis of the whole process storage mechanism and the research of marine CO2 sequestration in saline aquifers project are the important research direction of this technology in the future.

Key words: carbon capture, utilization and storage(CCUS), CO2 geological storage, sequestration in saline aquifers, storage potential, evaluation

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