meor processes sources and types nutrients & injection mechanisms screening criteria methodology...
TRANSCRIPT
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Microbial Enhanced Oil Recovery
Group 11
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MEOR ProcessesSources and TypesNutrients & InjectionMechanismsScreening criteriaMethodologyCase StudyEconomicsLimitations and Environmental EffectsConclusion
Outlines
Shady
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Well Stimulation
Enhancing Waterflooding
Permeability Modification
Wellbore Cleanup
MEOR Processes
Shady
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Indigenous
•Less cost
•Difficulty to achieve required reactions
External Source(Exogenous)
•Produce required products•Injected with nutrients
OR•Injection of metabolites
Source & Type
Source
M.Abdelaaty
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AerobicAerobic
AnaerobicAnaerobic
FacultativeFacultative
Source & Type
Type
M.Abdelaaty
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Nitrogen
source
• Nitrates
Sugar sourc
e
• Molasses
Protein
source
• Phosphates
Essential nutrients
Nutrients
M.Abdelaaty
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Sugar, crude oil
Oxygen
Carbon source
For aerobic cultures
Nutrients
M.Abdelaaty
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Water
Nutrients
Microbes
Injection
M.Abdelaaty
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Injection
Injection
MicrobialfloodingHuff and Puff
M.Abdelaaty
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Huff &
Puff
Injection
M.Abdelaaty
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NutrientsMicrobes
Water
Injection
INJECTION
Stimulation
M.Abdelaaty
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Injection
SHUT - IN
Stimulation
M.Abdelaaty
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Injection
PRODUCTION
Production
Stimulation
From the same well
M.Abdelaaty
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Microbialflooding
Injection
M.Abdelaaty
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InjectionEnhancing waterflooding
M.Abdelaaty
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Microbes as Factory of Bio-chemicals
M. Fathy
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Mechanisms
Interfacial tensionInterfacial tension
Water mobilityWater mobility
Oil mobilityOil mobility
Mechanisms
M. Fathy
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MechanismsInterfacial tensionInterfacial tension
Mechanism
Product
Reduction of IFT
Bio-surfactant M. Fathy
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PERMEABILITY REDUCTION
MechanismsWater mobilityWater mobility
Mechanism
Product
Selective plugging
Bio-polymer M. Fathy
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MechanismsWater mobilityWater mobility
PERMEABILITY REDUCTION
M. Fathy
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MechanismsWater mobilityWater mobility
PERMEABILITY REDUCTION
M. Fathy
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MechanismsWater mobilityWater mobility
PERMEABILITY REDUCTION
M. Fathy
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MechanismsWater mobilityWater mobility
Mechanism
Product
Water thickening
Bio-polymer
VISCOSITY INCREASING
M. Fathy
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MechanismsOil mobilityOil mobility
Mechanism
Product
Dissolution of carbonates
Organic acids
PERMEABILITY INCREASING
M. Fathy
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MechanismsOil mobilityOil mobility
Mechanism
Product
Dislodge debris
Bio-gas
PERMEABILITY INCREASING
M. Fathy
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MechanismsOil mobilityOil mobility
Mechanism
Product
Emulsion
Organic alcohols and bio-surfactant
VISCOSITY REDUCTION
M. Fathy
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MechanismsOil mobilityOil mobility
Mechanism
Product
Swelling
Bio-gas
VISCOSITY REDUCTION
M. Fathy
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MechanismsOil mobilityOil mobility
Mechanism
Product
Oil dissolution
Organic solvents
VISCOSITY REDUCTION
M. Fathy
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MechanismsOil mobilityOil mobility
Mechanism
Heat
VISCOSITY REDUCTION
M. Fathy
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MechanismsOil mobilityOil mobility
Mechanism
Oil bio-degradation
VISCOSITY REDUCTION
M. Fathy
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MechanismsOil mobilityOil mobility
Titan’s new technology
M. Fathy
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GeophysicalGeochemical
Oil properties
Screening criteria
M.AbdelMawgod
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Screening criteria
GeophysicalM.AbdelMawgod
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> 50 cp
50 – 170 F 100 – 120 F
> 20 cp, < 200 cp
3 – 30 %
< 8000 ft
100 – 300 md
3000 – 6000 ft
> 10%
> 50 md
Screening criteriaFactor Limits Optimum
M.AbdelMawgod
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Screening criteria
GeochemicalM.AbdelMawgod
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0 -15 %< 20 %
< 10 %< 150,000 ppm
5 - 9
< 200 ppm
6 - 8
Carbonate
< 100 ppm
Carbonate,Sandstone,
Granite, others
SalinityTDS
Heavy metalspHLithology
Screening criteriaFactor Limits Optimum
M.AbdelMawgod
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Screening criteria
Oil propertiesM.AbdelMawgod
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Paraffinic/Asphaltic
> 25 %
> 15
50 %
30 -40
Paraffinic, Asphaltic,
Naphthenic,Olefinic
Oil typeAPIOil saturation
Screening criteriaFactor Limits Optimum
M.Abdelmawgod
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MethodologyCharacterization of The Target Reservoir
Important in MEOR project.
Designing microbial treatment.
Identifying the directional flow characteristics of the reservoir.
Mostafa
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MethodologyThe Mineralogy of The Rock Formation
Characterized by core analysis
The effect of clay minerals in the pores.
The effect of rock mineralogy on transport of microbes.
Mostafa
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MethodologyExamination of The Produced Oil & Water
Water and oil samples were analyzed for microbial content.
These microorganisms might have adverse effect on the injected MEOR system or may be beneficial.
Indigenous microbes are used widely in the MEOR systems.
Mostafa
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MethodologyCare When Nutrients Are Injected
Ensure that the indigenous SRB* are either not stimulated or over grown.
SRB can produce H2S.
*SRB: Sulfate Reducing BacteriaMostafa
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MethodologyCompatibility testing of microbes with
fluids
Compatibility testing of fluids must be performed with cores.
These tests will yield estimates of oil recovery efficiency.
Mostafa
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MethodologyQuality of The Injected Nutrients Must Be
Studied
Compatibility testing with nutrients must be performed with cores .
The difference of nutrient composition affects the microbial growth and activity.
Mostafa
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Project Description
Lab. Test Pilot Test
Phase 1 Phase 2 Phase 3
Field project scale
Mostafa
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Case Study
Mostafa
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Well stimulation, USA, Johnson, 1979
Oil production: 20 bbl/day
Objective: Well clean-out
Well: Low production
Case study
Doaa
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Well stimulation, USA, Johnson, 1979
Bacteria Nutrients- Bacillus
- ClostridiumUp to 105 to 106
cells/ml
- Molasses (4 %)
- (NH4)3PO4 (0.02 %)
Case study
Doaa
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Well stimulation, USA, Johnson, 1979Process:
Huff and Puff
Shut-in for 4 weeks
Increase production 350 %
Case study
Doaa
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Microbialflooding, USA, Davidson et al, 1988
Problem: High oil viscosity (21 API)
Unfavorable mobility ratio
Inefficient waterflooding
Case study
M.Alaa
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Microbialflooding, USA, Davidson et al, 1988
Bacteria Nutrients
-Clostridium:High producer of CO2
and alcohols
- Water 10,000bbl- Free corn syrup
200,000lb- Some mineral salts
Case study
M.Alaa
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Process:
Injection
Shut-in for 7 days
Returning to production
Microbialflooding, USA, Davidson et al, 1988
Case study
M.Alaa
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Results:Reduction of oil viscosity by CO2
Improve mobility ratio and sweep efficiency by organic butanol
Leading to enhancing oil recovery
Microbialflooding, USA, Davidson et al, 1988
Case study
M.Alaa
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Economics
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Microbes and nutrients are relatively cheap materials.
Cost is independent on oil prices.
Implementation needs minor modifications to field facilities.
Economics
M.Alaa
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Economically attractive for marginal producing wells.
The total cost of incremental oil production from MEOR is only 2 – 3 $/bbl.
Economics
M.Alaa
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Surfactant
CO2 Injection
Thermal
Polymer
Waterflooding MEOR
Total recovery, % OOIP
Incr
emen
tal o
il co
st, $
/bbl
Economics
M.Alaa
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Enas
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Limitations
Mineral content Increasing salinity absorbs
water from the microbe and negatively affects its growth
Enas
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Limitations
Reservoir parametersPermeability, temperature, pressure,
salinity, pH, …etc affects selection of our types and our
growth
Enas
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Limitations
Study of bacteria metabolism, and relation to subsurface environment,
need great effort
Lack of experience
Enas
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Limitations
Sulfate-reducing bacteria
Produce H2S and SO2
Causing bio-corrosion of the equipment, and contamination of ground water
Enas
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More friendlyProduce organic chemicalsless harmful than synthetic chemicals used by otherEOR methods
Effects on Environment
Enas
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Conclusion
Shady
EOR Methods are specific for specific reservoirs.
Usage of microbes is to produce Bio-chemicals.
Effect of reservoir conditions.
MEOR is economical method.
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• Donaldson, E.C.; Chilingarian, G.V.; and Yen, T.F., "Microbial Enhanced Oil Recovery,“ Vol. 22, Elsevier Science Publishers B.V., 1989
• El-Tayeb, S.A.; Abdallah, Abdel Waly; Sayyouh, M.H. and Samir, M.A., “Tertiary Oil Recovery from Egyptian Reservoirs by New Method (Bacteria for Increasing Oil Recovery),” Report 1; Mining, Petroleum and Metallurgical Department, Faculty of Engineering, Cairo University, Giza, Egypt, Jan, 2003
• Sayyouh, M.H.; Al-Blehed, M.S.; and Hemeida, A.M., "Possible Applications of MEOR to the Arab Oil Fields," Journal of King Saud University, Vol. 5, Engineering Sciences, No.2 (1991)
• Al-Blehed, M.S.; Sayyouh, M.H.; Shoeb, H.A.; Awwad, A.M.; Desouky, S.M.; and Hemeida, A.M., "Laboratory Investigation of Microbial Enhanced Oil Recovery," Journal of King Saud University, Vol. 8, Engineering Sciences, No.2 (1994)
References
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• L. Bryant, Steven, The University of Texas at Austin; and P. Lockhart, Thomas SPE, Enitecnologie, " Reservoir Engineering Analysis of Microbial Enhanced Oil Recovery," SPE 63229 presentation at the 2000 SPE Annual Technical Conference and Exhibition held in Dallas, Texas, 1–4 October 2000
• M. Amro, Mohamed, SPE, King Saud University, "Multidisciplinary Challenge for Microbial Enhanced Oil Recovery (MEOR)," SPE 120820 presented at the 2008 Saudi Arabia Section Technical Symposium held in Alkhobar, Saudi Arabia, 10–12 May 2008
• Maudgalya, Saikrishna, SPE, Anadarko Petroleum Corp.; and M. Knapp, Roy, SPE; and J. McInerny, Michael, SPE, University of Oklahoma, Norman, “Microbial Enhanced oil Recovery Technologies: A Review of the Past, Present, and Future," SPE 106978 presented at the 2007 SPE Production and Operations Symposium held in Oklahoma City, Oklahoma, U.S.A., 31 March–3 April 2007
References
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• R. Vazquez-Duhalt and R. Quintero-Ramirez (Editors), “Studies in Surface Science and Catalysis 151,” Chapter 15, Biotechnological approach for development of microbial enhanced oil recovery technique, Fujiwara, K.; Sugai, Y.; Yazawa, N.; Ohno, K. ; Hong, C.X. and Enomoto, H., Elsevier B .V., 2004
• Feng, Qing-xian; and Zhou, Jia-xi, SPE, Chen, Zhi-yu; Wang, Xiao-lin; and Ni, Fang-tian, SPE, and Huai-jun Yang, Research Centre of Dagang Oilfield Company, PetroChina, “Study on EOR Mechanisms by Microbial Flooding,” SPE 79176 presented at the 26th Annual SPE International Technical Conference and Exhibition held in Abuja, Nigeria, 5-7 August, 2002
• Kowalewski, E.; Rueslatten, I.; Boassen, T.; Sunde, E.; and Stensen, J.A., Statoil ASA.; Lillebo, B.L.P.; Bodtker, G.; and Torsvik, T., UNIFOB AS, “Analyzing Microbial Improved Oil Recovery Processes from Core Floods," IPTC 10924 presented at the International Petroleum Technology Conference held in Doha, Qatar, 21 – 23 November,2005
References
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Websites• http://www.bioportal.gc.ca
• http://www.agen.ufl.edu
• http://www.msstate.edu
• http://www.bnet.com
• http://www.microbesinc.com
• http://www.teriin.org
• http://www.titanoilrecovery.com
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Special Thanks
• Prof. Dr./ Mohamed Helmy SayyouhMining, Petroleum and Metallurgical Department, Faculty of
Engineering, Cairo University
• Prof. Dr./ El-Sayed Ahmed El-TayebMining, Petroleum and Metallurgical Department, Faculty of
Engineering, Cairo University
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Till the last dropOil is ours
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