ENHANCED OIL RECOVERY

Enhanced Oil Recovery

Enhanced oil recovery (EOR), also referred to as improved oil recovery or tertiary oil recovery, is most often achieved by injecting a liquid or gas into an oil reservoir, thereby lowering oil viscosity and increasing the amount of oil available for production. Some of the more common EOR methods include gas EOR (mostly CO-2 EOR), thermal EOR and chemical EOR. Microbial EOR and seismic EOR also hold small, but strong niches in the EOR market. While only about 10% - 30% of oil is typically extracted from a well by conventional oil production processes, EOR methods can enhance these recovery rates by an additional 5% to 20% (on a conservative average).

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