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C.O.2 Utilization of shale reservoirs at different well life stages. Credit: Siwei Meng, Fengyuan Zhang, Jiaping Tao, Xu Jin, Jianchun Xu, He Liu
New research published in journal engineering Uncovering the surprising carbon storage potential of shale layers using CO2 Crushing technology.
The research, conducted by a joint team from the PetroChina Institute of Petroleum Exploration and Development (Beijing), the Mainland Shale Oil State Key Research Institute (Daqing), and the China University of Petroleum (Beijing), marks a pivotal advance in China’s pursuit of oil exploration. means. Energy independence and carbon neutrality.
Shale formations play an important role in China’s energy landscape and carbon utilization2 The benefits of fracturing are twofold. It not only facilitates oil recovery but also facilitates the emission of large amounts of carbon dioxide.2 storage.The study is titled “Carbon storage potential of CO-based shale reservoirs”2 “Fracturing Technology” delves into the complex dynamics of CO.2 Storage mechanism within shale formations using actual mining parameters from the GYYP1 well in Songliao Basin.
Through advanced numerical simulations, researchers revealed the pivotal role of adsorption and diffusion in CO.2 Storage within shale formations. Initial findings reveal that approximately 22.13% of CO is present.2 CO is further increased by adsorption and diffusion during the crushing process2 Interaction with shale rock over time. This synergistic effect resulted in a significant increase in CO by 26.02%.2 The suction power ensures long-term stable storage in the reservoir.
Key conclusions from the study indicate that superior CO2 Achieved storage efficiency of 80.15% in 10 years, showing great potential for CO2 Crushing technology. Notably, this study emphasizes the concentration of absorbed carbon dioxide.2 This highlights the importance of diffusion in maximizing storage capacity.
Additionally, estimates based on the GYYP1 well data indicate that approximately 1,000 future wells in the Gulong shale oil reservoir could potentially tap into similar storage potential, with an estimated amount of approximately 2 million tons of CO2 stored. It is thought that2 We have high hopes that such achievements will advance energy security and be in line with China’s dual carbon goals of achieving carbon peak and carbon neutrality.
This study reveals the immense potential of CO.2 Fracturing technology not only accelerates oil recovery but also helps reduce carbon emissions. By harnessing the natural storage capacity of shale formations, we can make significant strides towards a more sustainable energy future.
This pioneering study highlights the importance of continuous innovation in energy technology and sets a compelling precedent for future developments in the CO field.2 Fracture methodology. As China ramps up its efforts towards carbon neutrality, initiatives like these play a vital role in shaping a greener and more sustainable future.
For more information:
Siwei Meng et al. Carbon storage potential of shale reservoirs based on CO2 fracturing technology, engineering (2024). DOI: 10.1016/j.eng.2023.11.018
Provided by Engineering Journal
