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Experimental investigation on plugging performance of CO2 microbubbles in porous media
Nam Nguyen Hai Le1,2,3; Sugai, Yuichi1; Vo-Thanh, Hung4; Nguele, Ronald1; Ssebadduka, Ronald1; Wei, Ning5
2022-04-01
Source PublicationJOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
ISSN0920-4105
Volume211Pages:14
AbstractTo further improve carbon dioxide enhanced oil recovery CO2-EOR efficiency in heterogeneous reservoirs, the use of CO2 microbubbles as a temporary blocking agent is attracting widespread interest due to their significant stability. This study aims to investigate the plugging performance of CO2 microbubbles in both homogeneous and heterogeneous porous media through a series of sandpack experiments. First of all, CO2 microbubble fluids were generated by stirring CO2 gas diffused into polymer (Xanthan gum (XG)) and surfactant (Sodium dodecyl sulfate (SDS)) solution with different gas: liquid ratios. Then, CO2 microbubbles fluids were injected into single-core and dual-core sandpack systems. The results show that the rheological behaviors of CO2 microbubble fluids in this study were followed the Power-law model at room temperature. The apparent viscosity of CO2 microbubble fluid increased as the gas: liquid ratio increased. CO2 microbubbles could block pore throat due to the "Jamin effect" and increase the resistance in porous media. The blocking ability of CO2 microbubbles reached an optimal value at the gas:liquid ratio of 20% in the homogeneous porous media. Moreover, the selective pugging ability of CO2 microbubbles in dual-core sandpack tests was significant. CO2 microbubbles exhibited a good flow control profile in the high permeability region and flexibility to flow over the pore constrictions in the low permeability region, leading to an ultimate fractional flow proportion (50%:50%) in the dual-core sandpack model with a permeability differential of 1.0:2.0 darcy. The fractional flow ratio was considerable compared with a polymer injection. At the higher heterogeneity of porous media (0.5:2.0 darcy), CO2 microbubble fluid could still establish a good swept performance. This makes CO2 microbubble fluid injection a promising candidate for heterogeneous reservoirs where conventional CO2 flooding processes have limited ability. This finding would be helpful in developing the utilization of CO2 microbubbles in EOR operation by better understanding their plugging mechanism in porous media.
KeywordCO2 microbubbles Heterogeneous porous media Plugging ability CO2-Enhanced oil recovery Single-core sandpack model Dual-core sandpack model
DOI10.1016/j.petrol.2022.110187
Indexed BySCI
Language英语
Funding ProjectKyushu University, Japan ; Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, Vietnam
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Petroleum
WOS IDWOS:000760776800002
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/34692
Collection中科院武汉岩土力学所
Corresponding AuthorNam Nguyen Hai Le
Affiliation1.Kyushu Univ, Dept Earth Resources Engn, Nishi Ward, 744 Motooka, Fukuoka, Japan
2.Ho Chi Minh City Univ Technol HCMUT, Fac Geol & Petr Engn, 268 Ly Thuong Kiet St,Dist 10, Ho Chi Minh City, Vietnam
3.Vietnam Natl Univ Ho Chi Minh City, Linh Trung Ward, Ho Chi Minh City, Vietnam
4.Seoul Natl Univ, Sch Earth & Environm Sci, 1 Gwanak Ro, Seoul, South Korea
5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Nam Nguyen Hai Le,Sugai, Yuichi,Vo-Thanh, Hung,et al. Experimental investigation on plugging performance of CO2 microbubbles in porous media[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2022,211:14.
APA Nam Nguyen Hai Le,Sugai, Yuichi,Vo-Thanh, Hung,Nguele, Ronald,Ssebadduka, Ronald,&Wei, Ning.(2022).Experimental investigation on plugging performance of CO2 microbubbles in porous media.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,211,14.
MLA Nam Nguyen Hai Le,et al."Experimental investigation on plugging performance of CO2 microbubbles in porous media".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 211(2022):14.
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