The Allison Unit CO â ECBM Pilot: A Reservoir Modeling ... - Coal-Seq

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Closing Remarks • First instance of long-term CO 2 injection in coalseams documented and analyzed – an excellent start. • Incremental methane recovery achieved. • Observations generally consistent with current theoretical understanding, but critical process questions remain. – Need improved understanding of causes of permeability & injectivity loss (matrix swelling, multi-component sorption & diffusion behavior) • Stand-alone economic performance marginal – achieving high injectivity project maker/breaker. • Need more integrated laboratory and field data. – Permeability changes with CO 2 injection. – In-situ CO 2 /CH 4 exchange. – Maximizing injectivity. LLM022403.ppt
Advanced Resources International LLM022403.ppt
Page 1 and 2: The Allison Unit CO 2 - ECBM Pilot:
Page 3 and 4: Coal-Seq Project Study Sites, San J
Page 5 and 6: Pilot Area Production History Rates
Page 7 and 8: Injector Well Configurations Well H
Page 9 and 10: Presentation Outline • Field Back
Page 11 and 12: Available Model Input Data • Maps
Page 13 and 14: Model Grid - Map View Face cleat Bu
Page 17 and 18: Field Total Gas Rate LLM022403.ppt
Page 19 and 20: Well #113 Water Rate Bottomhole Pre
Page 21 and 22: “Systematic” Discrepancies •
Page 23 and 24: Current Findings (cont’d) • Obs
Page 25 and 26: Forecast Results Case Total Methane
Page 27 and 28: Permeability History for Injector W
Page 31 and 32: What-if Results Cont Inj, ST Inj, C
Page 35 and 36: Current Economic Results @ 5 years
Page 37 and 38: Case for CO 2 Sequestration Methane
Page 39: Presentation Outline • Field Back

The Allison Unit CO â ECBM Pilot: A Reservoir Modeling ... - Coal-Seq

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The Allison Unit CO â ECBM Pilot: A Reservoir Modeling ... - Coal-Seq