E3S Web Conf.
Volume 369, 20233rd International Conference on Environment Resources and Energy Engineering (ICEREE 2023)
|Number of page(s)||5|
|Section||Natural Resource Management and Environmental Control|
|Published online||16 February 2023|
Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rock
School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
In view of the practical problems faced by the CO2 sequestration in aquifers, this paper considers the influence of injection rate, water production rate, and other factors on CO2 injection amount, residual sequestration amount, dissolution sequestration amount, and pressure evolution under the constraint of cap rock breakthrough pressure is studied by using a numerical simulation method, and the sequestration potential is evaluated. The results show that: (1) Water production measures can improve CO2 injection, dissolution sequestration, and residual sequestration. (2) Low ratio of vertical permeability to horizontal permeability is conducive to the security and stability of CO2 sequestration in the long term. The research content provides support for the evaluation of CO2 saline aquifer sequestration potential and field practice.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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