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Algunas Reflexiones sobre EOR

Algunas Reflexiones sobre EOR. IAPG EOR Workshop 3 - 5 de Noviembre de 2010 Carlos Glandt Director de Desarrollo. Una situacion movilizadora. 9. Cummulative Oil in Place 10^ bbl. 4000. cummulative. 3000. 2000. 1000. cummulative. IHS data base – not QC'ed. Recovery Factor (%). 0.

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Algunas Reflexiones sobre EOR

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  1. Algunas Reflexiones sobre EOR IAPG EOR Workshop 3 - 5 de Noviembre de 2010 Carlos Glandt Director de Desarrollo

  2. Una situacion movilizadora 9 Cummulative Oil in Place 10^ bbl 4000 cummulative 3000 2000 1000 cummulative IHS data base – not QC'ed Recovery Factor (%) 0 10 20 30 40 50 60 70 80 90 100

  3. Contribuciones a la Produccion New discoveries Non-conventional oil Enhanced oil recovery Optimization and Development of existing resources Existing capacities • New resources • Environmental concerns

  4. Aspiration to exceed 70% Better fields, e.g. high k sand, carbonates Complex fields, e.g. fractured carbonates, thin oil rims 100 % Difficult fields, e.g. low permeability, heavy oil Locked Fields, e.g. very sour, very low permeability, extreem heavy 50 % 0 % How big is the Challenge A wide range of RF's for primary and secondary recovery Recovery factor Field 1 Field 2 Field 3 Field 5 Field 4 Field 6 Cumulative STOIIP

  5. Candidate IOR Processes Under Various Reservoir Conditions Oil Viscosity (cp) 1 10 100 1000 10000 100000 0 Immiscible Gas Injection Polymer Steam Injection 2000 Injection 4000 Reservoir Depth (ft) 6000 Pattern Water Injection Miscible CO2 or Bottom Water Injection or HC Gas Injection 8000 Miscible 10000 Nitrogen Injection 12000 Selection of EOR Project Concept

  6. EOR - What Works Heat Probability of Significant Recovery Gas (Large Slug) ASP Surfactant Brute Force

  7. Better Waterfloods results in Better EOR Better WF è Better EOR 0.2 Very successful floods 0.15 0.1 Tertiary recovery Less successful floods 0.05 0 0 0.2 0.4 0.6 0.8 Primary plus waterflood recovery

  8. Chemical EOR Project in the U.S.

  9. Chemical EOR Production in the U.S.

  10. Field Scale Chemical EOR Projects? Are EOR alternatives dissapearing these days to allow for CEOR to deliver the promised barrels? Is CEOR robust enough to point to an unambiguous commercial phase? How well developed and managed the waterflood needs to be to provide a solid ground for CEOR? Are we minimizing the importance of having a trained and skillfull workforce (engineers and operators) to be successful?

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