Enhanced Oil Recovery with Gas Injection - EORG - In House Training

Enhanced Oil Recovery with Gas Injection - In-house training by PetroSkillsThis course can be conducted on site at your location exclusively for your staff. On average nearly two-thirds of the original oil in place remains after reservoir abandonment following secondary recovery. The low oil recovery is primarily the result of reservoir heterogeneity, unfavorable fluid and rock properties, poor waterflood management, and cost considerations. This leaves a significant target for enhanced oil methods. Recent focus by many governments to sequester CO2 also provides incentive to initiate new gas floods. One of the most accepted and widely used technologies for enhanced oil recovery (EOR) is gas flooding. Gas flooding is the injection of hydrocarbon or nonhydrocarbon components into oil reservoirs that have typically been waterflooded to residual oil. Injected components are usually gases at atmospheric temperature and pressure and may include mixtures of hydrocarbons from methane to propane, and also carbon dioxide, nitrogen, and even hydrogen sulfide. The key to successful gas flooding is to contact as much of the reservoir with the gas as possible and to recover all of the oil once contacted. Injected gases must be designed to be miscible with the oil so that oil previously trapped by capillary forces is transferred into a more mobile phase that flows easily to the production well. Flow is ideally piston-like in that whatever gas volume is injected displaces an approximately equal volume of reservoir fluid. Unfortunately, miscibility is not always possible and reservoir heterogeneities can cause gas to cycle through one or more layers, which results in poor recovery efficiency. A proper gas flood design will consider both the displacement and sweep efficiency that result and the profitability of that process. This course gives a comprehensive understanding of immiscible gas and compositionally enhanced recovery processes and the important variables...