A Techno-Economic Analysis of Coupling Enhanced Hydrocarbon Recovery and CO2 Storage in Gas Condensate Reservoirs

Jo Ann Tan, Guy Allinson, Yildiray Cinar


Coupling enhanced gas (EGR) and condensate (ECR) recoveries with CO2 storage could potentially maintain fossil fuel supply and reduce CO2 emissions to the atmosphere. This paper evaluates the techno-economic potential of simultaneous EGR, ECR and CO2 storage in gas condensate reservoirs. We demonstrate that, for a closed gas condensate reservoir, injecting CO2 later in production life is more profitable than early injection. This is because it delays CO2 breakthrough at the production wells while enhancing gas and condensate production. In contrast, for a bottom-water drive gas condensate reservoir, we find that early CO2 injection minimises water influx from the underlying aquifer. This maximises incremental gas and condensate production and CO2 storage in the reservoir.

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DOI: http://dx.doi.org/10.5539/eer.v3n2p73

Energy and Environment Research   ISSN 1927-0569 (Print)   ISSN 1927-0577 (Online)
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