天然气工业2024，Vol.44Issue(4)：1-10,10.DOI:10.3787/j.issn.1000-0976.2024.04.001
CO2海洋封存的思考与新路径探索
Consideration on CO2 marine storage and exploration of new paths
周守为 1李清平 2朱军龙 3周云健 3赵常忠 4何玉发3
作者信息
- 1. 怀柔实验室||海洋天然气水合物全国重点实验室||中国海洋石油集团有限公司
- 2. 怀柔实验室||海洋天然气水合物全国重点实验室
- 3. 怀柔实验室||海洋天然气水合物全国重点实验室||中海油研究总院有限责任公司
- 4. 怀柔实验室
- 折叠
摘要
Abstract
To realize the goal of"carbon peaking and carbon neutrality"is not only a global consensus on combating climate change,but also in urgent need for China to assume its responsibilities as a major country and to promote the construction of a community with a shared future for mankind.Currently,carbon storage in China is conducted in the form of gaseous or liquid CO2,with site selection mainly onshore.Compared with marine carbon storage,terrestrial carbon storage has less potential and higher requirements for geological and operation conditions.Ocean is the most active carbon reservoir with huge storage potential on the earth.In China,however,there is only one marine CO2 storage demonstration project,namely Enping 15-1.In order to speed up the realization of CO2 marine storage,this paper proposes a new idea of solid-state CO2 hydrate storage,and explores an overall path for marine carbon storage.And the following research results are obtained.First,based on reverse thinking from the development of methane hydrates and the far easier conditions for the formation of CO2 hydrates than that of methane hydrates,CO2 can form a carbon mine of CO2 hydrate when it is injected into the seabed.Second,injecting liquid CO2 directly into the sediments beneath the methane hydrate layer according to the principle of"solid fluidization"can not only make use of CO2 to replace and exploit methane hydrates,but also form CO2 hydrates in the seabed to realize carbon storage.Third,it is possible to achieve the coordinated development of oil and gas field exploitation and marine carbon storage by utilizing the existing oil and gas field development platforms and equipment and selecting favorable geological structures and saline aquifers.In conclusion,this method has been experimentally verified to be feasible,and it is expected to offer a new solution for future carbon capture,utilization and storage(CCUS).关键词
海洋碳封存/碳矿/CO2 水合物/CO2 地质封存/"固态流化"法/甲烷水合物/CCUSKey words
Marine carbon storage/Carbon mine/CO2 hydrate/CO2 geological storage/"Solid fluidization"method/Methane hydrates/CCUS分类
能源科技引用本文复制引用
周守为,李清平,朱军龙,周云健,赵常忠,何玉发..CO2海洋封存的思考与新路径探索[J].天然气工业,2024,44(4):1-10,10.
