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Gas Based EOR ProcessCO2 Flooding (Miscible & Immiscible)Limitations•Source of CO2 can act as a Limitation for this process to beapplied.•Very low viscosity of CO2 results in poor mobility control.•Early breakthrough of CO2 causes several problems.•CO2 gets dissolved into formation water making it acidic. Thiscauses corrosion of the tubulars in the well bore.•Repress rising of CO2 for recycling.•A A high requirement of CO2 per incremental barrel of oil produced.Safety hazards.
Gas Based EOR ProcessNitrogen Gas Flooding (Miscible and Immiscible)Nitrogen gas flooding oil recovery method uses the inexpensivenon hydrocarbon gas nitrogen to displace oil in system whichmight be miscible or immiscible depending upon the pressureand oil composition. Because of their low cost, large volumes ofthese gases may be injected. The process recover oil byvaporizing the lighter component of the crude oil and generatingmiscibility if the pressure is high enough, providing a gas drivewhere a significant portion of the reservoir volume is filled withlow cost gases. Higher miscibility pressure required compared toall other gases.
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Enhanced oil recovery techniquesDin
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Primary RecoverySecondary RecoveryT
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Incremental IOR/EOR OilIncremental
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Thermal EOR ProcessThe principle of
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Thermal (Steam flooding)
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Thermal EOR ProcessLimitations :•
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Steam Flooding (Huff and Puff)
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Thermal EOR ProcessIn-situ Combusti
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Air injectionSCHEMATIC OF SPONTANEO
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In-situ Combustion
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LimitationsThermal EOR ProcessThe p
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W/c, %Balol FieldBalol FieldIn-situ
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Non-Thermal EOR MethodsNON-THERMALM
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Chemical Floods Current Status Worl
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Chemical EOR Process
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WATER FLOODInjectorProducer
Page 36 and 37: WATER FLOODInjectorProducer
Page 38 and 39: SURFACTANT FLOODSurfactant follows
Page 40 and 41: SURFACTANT FLOODInjectorProducer
Page 42 and 43: SURFACTANT FLOODInjectorProducer
Page 44 and 45: SMART SURFACTANT FLOODSmart Surfact
Page 46: SMART SURFACTANTInjectorProducer
Page 49 and 50: SMART SURFACTANTInjectorProducer
Page 51 and 52: SMART SURFACTANTInjectorProducer
Page 53: Chemical EOR ProcessTechnical Scree
Page 56 and 57: Chemical EOR ProcessPolymer Process
Page 58 and 59: Chemical EOR Process
Page 60 and 61: Chemical EOR Process
Page 62 and 63: Chemical EOR ProcessLimitations and
Page 64 and 65: 140120100water cut (%)Polymer Flood
Page 66 and 67: Gas Based EOR Process
Page 68 and 69: Gas Contribution to Green House Eff
Page 70 and 71: Gas Based EOR ProcessHydrocarbon Mi
Page 72 and 73: Miscible Gas Flooding(Hydrocarbon I
Page 74 and 75: Gas Based EOR ProcessRich Gas Injec
Page 76 and 77: Miscible Gas Injection: Gandhar GS-
Page 78 and 79: Gas Based EOR ProcessLimitations an
Page 80 and 81: Gas Based EOR ProcessCO2 Flooding (
Page 82: Gas Based EOR ProcessCO2 Flooding (
Page 88 and 89: Gas Based EOR ProcessNitrogen Gas F
Page 90 and 91: Gas Based EOR ProcessWater And Gas
Page 92 and 93: Gas Based EOR ProcessClassification
Page 94 and 95: Gas Based EOR ProcessPerformance of
Page 96 and 97: Gas Based EOR ProcessSimultaneous w
Page 98 and 99: Gas Based EOR ProcessDisplacement E
Page 101 and 102: INCORRECT APPLICATIONS:Miscible Flo
Page 103 and 104: Microbial EOR ProcessMicrobial Enha
Page 105 and 106: THE TECHNIQUE INVOLVES:‣injection
Page 107 and 108: MICROBIAL PRODUCTS AND THEIR ACTION
Page 109 and 110: Micro Photo Graph of Consortium S-2
Page 111 and 112: Other parameters which areconsidere
Page 113 and 114: Schematic flow diagram of MEOR JobT
Page 115 and 116: 1009080706050403020100MEOR PERFORMA
Page 117 and 118: 1009080706050403020100MEOR PERFORMA
Page 119 and 120: 403530Liquid rate / Oil rate m3/d10
Page 121 and 122: COST OF MEOR OILMEOR job cost with
Page 123: Conclusions•The forces holding ba
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