Performance of Steam Assisted Gravity Drainage in Thin Oil Sand Reservoirs: Well Pair Configuration
Abstract
Success of Steam Assisted Gravity Drainage (SAGD) depends on reservoir properties and operational parameters. Here, both areas are targeted and performance of SAGD in thin oil sand reservoirs with changing the well configuration is studied. Specifically, the influence of the injection and production wellpair configuration as well as the number of injector wells in a homogeneous formation with thicknesses of 5, 7, and 10m were investigated. The wellpairs were relocated to make different patterns where the spacing between injection and production wells was changed. SAGD performance was assessed numerically and the cumulative steam oil ratio, oil production, heat loss, and oil recovery factor were compared. The results suggest that the horizontal and vertical distances between injectors and the producer well, their locations from over or underburden and their alignments affect the performance of SAGD operation. The results also show that addition of an offset injector well can be beneficial.
Description
Keywords
Engineering, Engineering--Petroleum
Citation
Zohrehvand, S. (2016). Performance of Steam Assisted Gravity Drainage in Thin Oil Sand Reservoirs: Well Pair Configuration (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27300