Understanding of CO2 dissolution in oil by convection-driven mixing and wettability alteration (UNCOVER)

Project Department: Uni Research CIPR (group: Reservoir Simulation) period: 01.01.17 - 31.12.20

About the project

Project Owner: International Research Institute of Stavanger (IRIS)

Project Leader: Research Director Ying Guo, IRIS, EOR

The project is funded by the research Council of Norway

It is well-known that the CO2 dissolved into water will increase the water density, thereby introduce convective flow which again accelerate the CO2 mixing at the CO2-water interface. This process will contribute to CO2 storage by accelerated CO2 dissolution. The project ?Understanding of CO2 dissolution in oil by convection-driven mixing and wettability alteration (UNCOVER)? will contribute to further understanding of the physical process of the convectional flow in an OIL reservoir when using CO2 for enhanced oil recovery (EOR). The project includes a series of laboratory experiments where CO2 will mix with both oil (or residual oil) and water in the reservoir rock through convectional flow. One important effect to be included in the experiments are the rock wettability alteration by CO2 which is occurring along with the convectional flow. The planned experiments will be performed with large 2D scale transparent model to observe the ?finger-like? convectional flow, as well as with large scale core flooding on real porous rock samples. These experiments can be used to visualize and understand the physical process, and to quantify the EOR potential due to the convectional flow. Furthermore, the experimental data will be used to improve the existing and new mathematical models and simulation tools which are used for large scale prediction of the EOR effect.


Research Topics

cp: 2017-12-12 18:18:16