Improved Oil Recovery by Waterflooding - University of Wyoming

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Project Personal • Norman Morrow • Carol Robinson (administration) • Winoto Winoto, Ph.D. – Low salinity, removal of water blocks, rate effect, and core properties for screening cores • Nina Loahardjo, Ph.D. – Low salinity, sequential waterflooding, and interfacial properties • Siluni Wickramatilaka, Ph.D. – Spontaneous Imbibition – scaling of viscosity ratio etc., gravity dominated imbibition, MRI imaging of an imbibition front, low salinity imbibition at Sor, surfactant enhanced imbibition • Pu Hui, Ph.D. – Low salinity flooding of reservoir cores including CBM water, chemical analysis and inline monitoring of pH and conductivity of effluent brine • Behrooz Raeesi, Ph.D. Student – Drainage/imbibition capillary pressure data, theory and experiments on surface energy, wetting and surface roughness EORI staff • Peugui Yin – Petrophysics: thin section analysis and data acquisition: surface areas, clay analysis, cation exchange capacities (Susan Schwapp) • Shaochang Wo – Data analysis, modelling, simulation Machine shop E N H A N C E D O I L R E C O V E R Y I N S T I T U T E • Ron Borgialli, George Twitchell, and Dean Twitchell
• Jill Buckley Adjunct Professors • Crude oil characterization, wetting, low salinity and sequential waterflooding recovery mechanisms, adhesion, interfacial tension, asphaltene phase behavior • Koichi Takamura • Recovery mechanisms, surfactants, emulsions, dispersions, DLVO theory, fundamentals of interfacial tensions including effect of pH and salinity for crude oils • Geoff Mason • Spontaneous imbibition, pressures at imbibition front and core face, viscosity ratios – correlations and theory, bubble snap-off and capillary back pressure for precise pore geometries, nuclear tracer imaging and interpretation (with EU N H ABergen) N C E D O I L R E C O V E R Y I N S T I T U T E
Page 1: Improved Oil Recovery by Waterflood
Page 5 and 6: July 2010 onward Presentations •
Page 7 and 8: TOPICS • Screening outcrop cores
Page 9 and 10: Laboratory Measurement of Oil Recov
Page 11 and 12: Definitions (cont’d) • Low Sali
Page 13 and 14: Main Hindrances to Systematic Inves
Page 15 and 16: Solutions/work in progress B. Total
Page 17 and 18: Screening of commercially available
Page 19 and 20: R wf (% OOIP) 100 80 60 40 20 Berea
Page 21 and 22: R wf (% OOIP) 100 80 60 40 20 Briar
Page 23 and 24: enefit compare to waterflood result
Page 25 and 26: Importance of Laboratory Coreflood
Page 27 and 28: Target Formations • Minnelusa (Gi
Page 29 and 30: 100 mm Minnelusa Rock from Oil Zone
Page 31 and 32: Phosphoria Rock from Cottonwood Cre
Page 33 and 34: 100 mm Tensleep Rock from Oil Zone
Page 35 and 36: Anhydrates dissolution in Tensleep
Page 37 and 38: Oil recovery, %OOIP 100 90 80 70 60
Page 39 and 40: R wf (% OOIP) 100 80 60 40 20 Silur
Page 41 and 42: 3. Sequential Waterflooding Morrow,
Page 43 and 44: Recovery of Crude Oil Medium Permea
Page 45 and 46: Recovery of Crude Oil Low Permeabil
Page 47 and 48: Recovery of Crude Oil High Permeabi
Page 49 and 50: Summary • Further investigation o
Page 51 and 52: Reservoir at residual oil saturatio
Page 53 and 54:
Displacement Radial length of of in
Page 55 and 56:
The well is put on production and t
Page 57 and 58:
100 bbl oil 100 bbl oil Single Well
Page 59 and 60:
Field Test ? 2011 ? Discussion of p
Page 61 and 62:
Ongoing Topics and Future Work 1. L
Page 63 and 64:
Improved Oil Recovery by Waterflood
Page 65 and 66:
E N H A N C E D O I L R E C O V E R
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Improved Oil Recovery by Waterflooding - University of Wyoming

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