Assessing Technical and Economic Recovery of Oil Resources

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TABLE OF CONTENTSEXECUTIVE SUMMARYI. INTRODUCTIONA. Overview of ROZ Recovery PotentialB. Outline for ReportII. ORIGIN AND OCCURRENCE OF RESIDUAL OIL ZONESA. Origin of Residual Oil ZonesB. Examining the Effects of Hydrodynamics and Reservoir Properties on Creating aTilted OWCC. Evidence for ROZs in the Permian BasinIII. EVALUATING OIL RECOVERY FROM RESIDUAL OIL ZONESA. Pilot Demonstrations of ROZ FloodsB. Sample ROZ Oil FieldsIV. CALIBRATING THE OIL RECOVERY MODELS AND ESTIMATINGTECHNICALLY RECOVERABLE ROZ RESOURCESA. Background on CO2-ProphetB. Comparison and Calibration of CO2-Prophet with a Full-Scale ReservoirSimulatorV. OVERCOMING BARRIERS TO RECOVERING OIL FROM RESIDUAL OIL ZONESA. Overview of BarriersB. Evaluating Strategies for Overcoming BarriersVI. ECONOMICALLY RECOVERABLE OIL RESOURCES IN TRANSITION ANDRESIDUAL OIL ZONESA. Basic Economic ModelB. Individual Versus Simultaneous FloodingC. Economically Recoverable ResourcesD. Marginal Economic AnalysisAPPENDIX A. OIL IN-PLACE FOR THE TZ AND ROZAPPENDIX B. ADJUSTING THE ROZ OIL IN-PLACE VALUES FOR COMPARISONSOF OIL RECOVERY EFFICIENCYAPPENDIX C. ECONOMIC ANALYSES OF FIVE PERMIAN BASIN SAN ANDRESRESERVOIRSi February 2006
Page 1 and 2: ASSESSING TECHNICAL AND ECONOMICREC
Page 3: ASSESSING TECHNICAL AND ECONOMIC RE
Page 7 and 8: (OWC) in the higher oil saturation
Page 9 and 10: 4800Oil Saturation %100 04850490049
Page 11 and 12: ase. Application of “next generat
Page 13 and 14: I. INTRODUCTIONResidual oil zones (
Page 15 and 16: II. ORIGIN AND OCCURRENCE OF RESIDU
Page 17 and 18: WEOil TrapBase of Original Oil Satu
Page 19 and 20: ORIGINALPOST BREACHSealOIL TRAPSeal
Page 21 and 22: B. Examining the Effects of Hydrody
Page 23 and 24: Figure 8, Effects of High Hydrodyna
Page 25 and 26: 6,000 5,900 5,800 5,700 5,600 5,500
Page 27 and 28: Adapted from Brown, A., (2001), “
Page 29 and 30: 4321•43054306• •431743184319
Page 31 and 32: 1,8001.995BOPD1,6001,4001,2001,0008
Page 33 and 34: 10,000Oil Production in BOPD5,000Ba
Page 35 and 36: Figure 22. Bennett Ranch Unit CO2 F
Page 37 and 38: SeminoleFieldSan Andres ProducingFi
Page 39 and 40: 2. Wasson Field, Denver Unit. The W
Page 41 and 42: Basin Name Permian West Texas 8A17
Page 43 and 44: 4. Vacuum Field, Grayburg/San Andre
Page 45 and 46: Basin Name Permian West Texas 8A29
Page 47 and 48: equirements are less demanding and
Page 49 and 50: 4,000Reservoir Simulation3,500Proph
Page 51 and 52: Table 2 provides the model comparis
Page 53 and 54: V. OVERCOMING BARRIERS TO RECOVERIN
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on investment. However, the delay i
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ProjectTable 5. Results from Two RO
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1,6001,4001,200Simultaneous MPZ & R
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3. Oil Price. The oil price was ass
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Table 8. Simultaneous MPZ and TZ/RO
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of $12.44 per barrel of oil recover
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CALCULATING THE OIL IN-PLACE FOR TH
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APPENDIX BADJUSTING THE ROZ OIL IN-
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Table B-2. CO 2 -EOR Project Recove
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BasinFieldFormationTechnology CaseD
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Field Cashflow ModelStateFieldForma
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Field Cashflow Model Pattern FieldS
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