Yifei Xu
University of Texas at Austin
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Publication
Featured researches published by Yifei Xu.
Scientific Reports | 2016
Pavel Zuloaga-Molero; Wei Yu; Yifei Xu; Kamy Sepehrnoori; Baozhen Li
The recent development of tight oil reservoirs has led to an increase in oil production in the past several years due to the progress in horizontal drilling and hydraulic fracturing. However, the expected oil recovery factor from these reservoirs is still very low. CO2-based enhanced oil recovery is a suitable solution to improve the recovery. One challenge of the estimation of the recovery is to properly model complex hydraulic fracture geometries which are often assumed to be planar due to the limitation of local grid refinement approach. More flexible methods like the use of unstructured grids can significantly increase the computational demand. In this study, we introduce an efficient methodology of the embedded discrete fracture model to explicitly model complex fracture geometries. We build a compositional reservoir model to investigate the effects of complex fracture geometries on performance of CO2 Huff-n-Puff and CO2 continuous injection. The results confirm that the appropriate modelling of the fracture geometry plays a critical role in the estimation of the incremental oil recovery. This study also provides new insights into the understanding of the impacts of CO2 molecular diffusion, reservoir permeability, and natural fractures on the performance of CO2-EOR processes in tight oil reservoirs.
Spe Reservoir Evaluation & Engineering | 2017
Yifei Xu; Jose Sergio de Araujo Cavalcante Filho; Wei Yu; Kamy Sepehrnoori
SPE Hydraulic Fracturing Technology Conference and Exhibition | 2017
Wei Yu; Yifei Xu; Ruud Weijermars; Kan Wu; Kamy Sepehrnoori
Aiche Journal | 2018
Wei Yu; Yifei Xu; Malin Liu; Kan Wu; Kamy Sepehrnoori
Spe Reservoir Evaluation & Engineering | 2017
Wei Yu; Yifei Xu; Ruud Weijermars; Kan Wu; Kamy Sepehrnoori
Journal of Petroleum Science and Engineering | 2018
Mohammad AlTwaijri; Zhaohui Xia; Wei Yu; Liangchao Qu; Yunpeng Hu; Yifei Xu; Kamy Sepehrnoori
SPE/AAPG/SEG Unconventional Resources Technology Conference | 2017
Yifei Xu; Wei Yu; Kamy Sepehrnoori
SPE Improved Oil Recovery Conference | 2016
Hamid R. Lashgari; Yifei Xu; Kamy Sepehrnoori
SPE Annual Technical Conference and Exhibition | 2015
Jose Sergio de Araujo Cavalcante Filho; Yifei Xu; Kamy Sepehrnoori
SPE Annual Technical Conference and Exhibition | 2018
Shayan Tavassoli; Yifei Xu; Kamy Sepehrnoori