当前位置：
X-MOL 学术
›
Engineering
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Carbon Storage Potential of Shale Reservoirs Based on CO2 Fracturing Technology
Engineering ( IF 12.8 ) Pub Date : 2024-02-07 , DOI: 10.1016/j.eng.2023.11.018 Siwei Meng , Fengyuan Zhang , Jiaping Tao , Xu Jin , Jianchun Xu , He Liu
Engineering ( IF 12.8 ) Pub Date : 2024-02-07 , DOI: 10.1016/j.eng.2023.11.018 Siwei Meng , Fengyuan Zhang , Jiaping Tao , Xu Jin , Jianchun Xu , He Liu
The development of shale reservoirs is important in ensuring China’s national energy security by achieving energy independence. Among the key technologies for shale oil production, CO fracturing is an effective method that can not only enhance oil recovery but also promote large amounts of CO storage, thereby supporting China’s goals of achieving a carbon peak and carbon neutrality. This research paper aims to study the impacts and prospective applications of CO fracturing in shale reservoirs, using real exploitation parameters from the GYYP1 well in the Songliao Basin. By utilizing numerical simulation, the dynamics of CO production are analyzed. Adsorption and diffusion are identified as pivotal mechanisms for CO storage in shale reservoirs. After the analysis of the fracturing process, approximately 22.13% of CO is found to be adsorbed, which decreases to 11.06% after ten years due to pressure decline. Diffusion increases the volume of CO interacting with a greater extent of shale, thereby enhancing the adsorption mechanism. Over time, the diffusion process results in a remarkable increase of 26.02% in CO adsorption, ensuring the long-term and stable storage of CO within the shale reservoir. This investigation delves into the contribution of these two crucial mechanisms of CO storage in shale reservoirs, ultimately predicting that, by 2030, approximately two million tons of CO can be effectively stored in the Daqing Oilfield through CO fracturing in shale oil reservoirs. Such an achievement will undoubtedly contribute to the sustainable development of the energy sector and foster the transformation and upgrading of China’s energy structure.
更新日期：2024-02-07
京公网安备 11010802027423号