Simulation Study of CO2-EOR in Tight Oil Reservoirs with Complex Fracture Geometries.

ABSTRACT: 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. W

SUBMITTER: Zuloaga-Molero P 

PROVIDER: S-EPMC5024126 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature