WebJul 26, 2024 · Gas huff-n-puff is an attractive enhanced oil recovery process for shale oil and is being field tested by several companies. In this work, laboratory core-scale huff-n-puff studies were conducted using CO 2 and a hydrocarbon gas containing 60% methane, 35% ethane and 5% propane. WebJun 4, 2024 · This study provides a strong basis to reasonably forecast the long-term production during CO2 Huff-n-Puff process. CO2 injection has great potentials to improve the oil production for the fractured tight oil reservoirs. However, Current works mainly focus on its operation processes; full examination of CO2 molecular diffusion and adsorption …
Residual oil contents of dolomicrite and sandy dolomite …
WebSep 21, 2024 · A pore-scale high-pressure visualization experimental system is used to investigate CO 2 exsolution during the CO 2 huff-n-puff process for enhanced oil recovery and geological CO 2 storage. Eighteen different experimental cases are examined to investigate the mechanisms by which depressurization-induced CO 2 exsolution is … WebApr 17, 2014 · A numerical model was built using the typical reservoir and fracture properties from Middle Bakken to simulate CO 2 huff-n-puff process. In this process, we consider CO 2 molecular diffusion term to swell oil in matrix since Darcy velocity is negligible due to low permeability. relay runs
Pore-scale investigation of CO2/oil exsolution in CO2 huff …
WebSep 13, 2024 · CO2 Huff-n-Puff (HnP) is an effective technique for enhancing oil recovery (EOR) that can be applied to shale oil reservoirs faced with poor natural productivity and low water injectivity. The main objective of this study is to investigate the interactions of CO2 and formation crude oil, and evaluate the CO2 HnP pe WebSep 15, 2016 · 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. WebThe Chang 7 continental shale oil reservoir is tight. The recovery factor is extremely low, the remaining oil is very high, and injecting water to improve oil recovery effectiveness is too hard. Therefore, in this paper, physical simulation experiments of CO2 huff-n-puff shale oil and NMR tests were conducted to study the cycle numbers and permeability on the … products baby black hair