Brochure: Characterization of Fractured Reservoirs

Date: 4/28/2009

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Reliable, predictive models to optimize carbonate reservoir performance

Because carbonate reservoirs typically have a lower recover factor than sandstone reservoirs, they offer great potential to increase production. A significant percentage of oil and gas reserves are trapped in fractured carbonate reservoirs—more than 60 percent of the world’s proven oil reserves and 40 percent of the world’s gas reserves. While increasing oil and gas production from carbonate reservoirs may not be the only solution to meeting forecast energy demand, it is clear that these reservoirs will play an increasingly important role in the future of our industry. Carbonate reservoirs are considered to be extremely challenging in terms of accurate recovery rate perdition because of their complexity and heterogeneity. Most carbonate reservoirs are naturally fractured and contain fractures that can range from isolation microscopic fissures to kilometre-wide collections called “fracture swarms” or “corridor.” These fractures create complex paths for fluid movement which impact reservoir characterization, and ultimately production performance and total recovery.

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