@inproceedings{c0522ec2a859495499ea45d0a64538a5,
title = "A black-oil approach to model produced gas injection for enhanced recovery of conventional and unconventional reservoirs",
abstract = "In this study, a fast and robust compositionally extended black-oil simulation approach is developed, which is capable of including the effect of large gas-oil capillary pressure for first and multi-contact miscible, and immiscible gas injection. The simulation approach is used to model primary depletion and gas flooding in a high-permeability reservoir using a five-spot flow pattern for different reservoir pressures. The comparison with fully-compositional model shows good agreement. For an initially undersaturated reservoir with both injection and production wells pressures above the original bubble-point pressure, gas evolves near the injection well and it later breaks through the production well as produced gas is injected. Additionally, the primary depletion and huff-n-puff gas injection in tight shale reservoirs by using the compositionally extended black-oil model indicates that the effect of large gas-oil capillary pressure on recovery becomes smaller as reservoir pressure is higher. Finally, a dynamic gas-oil relative permeability correlation that accounts for the compositional changes owing to the produced gas injection is introduced and applied, and its effect on oil recovery is examined.",
author = "Fengshuang Du and Bahareh Nojabaei and Johns, {Russell T.}",
year = "2018",
month = jan,
day = "1",
doi = "10.2118/191454-ms",
language = "English (US)",
series = "Proceedings - SPE Annual Technical Conference and Exhibition",
publisher = "Society of Petroleum Engineers (SPE)",
booktitle = "SPE Annual Technical Conference and Exhibition 2018, ATCE 2018",
address = "United States",
note = "SPE Annual Technical Conference and Exhibition 2018, ATCE 2018 ; Conference date: 24-09-2018 Through 26-09-2018",
}