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IOR 2007 - 14th European Symposium on Improved Oil Recovery
- Conference date: 22 Apr 2007 - 24 Apr 2007
- Location: Cairo, Egypt
- Published: 22 April 2007
1 - 20 of 47 results
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Development and Optimization of Issaran Oil Field
Authors T. Wnorowski, M.A. Badawy, J. Donnelly and D. BrownA01 Development and Optimization of Issaran Oil Field T. Wnorowski* (Rally Energy Corp.) M.A. Badawy (General Petroleum Company) J. Donnelly (Rally Energy Corp.) & D. Brown (Rally Energy Corp.) SUMMARY Issaran is a heavy oil field located in the Arab Republic of Egypt adjacent to the Gulf of Suez. The field depends on its natural fracture system and produced water management for optimal oil deliverability. It is believed that there is a complex pressure support system that consists of one or more aquifers. The fracture system serves as the primary production conduit. Due to well established relative mobility effects water
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Ula WAG – World Class EOR – Breathing the Gas of Life into a Mature Oil Field
Authors C. de Jongh, E. Lund, M. Hole and J. DuncanA04 Ula WAG – World Class EOR – Breathing the Gas of Life into a Mature Oil Field C. de Jongh* (BP Norway) E. Lund (BP) M. Hole (BP Norway) & J. Duncan (BP Norway) SUMMARY The Ula field is located in the Norwegian sector of the North Sea. The field has a STOOIP of around 1 billion stb and has been on production since 1986; water injection started in 1988. In the mid-nineties the field was on a steep waterflood decline with less than a decade of future. Ula WAG (Water Alternating Gas)was started up in 1998 and targets
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The Tampen Area IOR Program
Authors S.R. Jakobsen, A. Hesjedal and I. SvorstølA05 The Tampen Area IOR Program S.R. Jakobsen* (Statoil) A. Hesjedal (Statoil) & I. Svorstøl (Statoil) SUMMARY Statoil initiated in 2004 an IOR initiative aiming at increasing the oil recovery from all it's Norwegian oil fields. As a part of this initiative Statoil's Tampen field cluster in the Northern North sea reorganized it's subsurface organisation to focus it's emphasis on this huge task. A screening process was performed and ambitious goals were established both on field- and area level. One of the conclusions from the screening study was that the maturation process from immature ideas to well established IOR-actions was
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IOR Strategies for the Final Stage of the Development of Chutyrsko-Kiengopskoye Oil Field
Authors A.A. Mosesyan, A.A. Forafonov, R.A. Rybakov, A.V. Berlin and A.L. GavrikovA06 IOR Strategies for the Final Stage of the Development of Chutyrsko-Kiengopskoye Oil Field A.A. Mosesyan* (Petroleum Technologies) A.A. Forafonov (Petroleum Technologies) R.A. Rybakov (Petroleum Technologies) A.V. Berlin (Izhevsk Oil Scientific Centre (Udmurtneft)) & A.L. Gavrikov (Izhevsk Oil Scientific Centre (Udmurtneft)) SUMMARY Chutyrsko-Kiengopskoye is the largest carbonate field in Udmurtia Russia with more than 400 million tons (2.2 billion barrels) of oil in place. The field is laterally divided into two areas with four similar productive horizons in each. The field has been in development since 1971 with more than 1300 wells drilled. Viscosity of reservoir fluid ranges from 9
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Experimental Study of Secondary and Tertiary Polymer Flooding in Sandpack and Core
Authors V.A. Sajjadian, S. Nejadi and A.R. HaghighiA07 Experimental Study of Secondary and Tertiary Polymer Flooding in Sandpack and Core S. Nejadi (Arvandan Oil and Gas Production) V.A. Sajjadian* (Arvandan Oil and Gas Production) & A.R. Haghighi (Science and Research Branch of Azad university) SUMMARY Diverse groups of synthetic and bio polymers have been implemented in a number of oil reservoirs worldwide for enhanced oil recovery. Harsh conditions of Iranian oil reservoirs especially high temperature and salinity necessitate application of proper type of polymer along with accurate designed schemes for the injected fluid to maintain its properties for the expected residence time in the reservoir. Consequently it
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Water & Chemical Flooding in Heavy Oil Field in Southern Oman
Authors D. Boersma and S. SikaitiA08 Water & Chemical Flooding in Heavy Oil Field in Southern Oman D. Boersma* (PDO) & S. Sikaiti (PDO) SUMMARY This paper deals with a development strategy to achieve world class recovery factors in a giant oil field in Southern Oman. A comprehensive field development plan urban plan and a risk based decision and assurance frame work has been designed to move from conventional recovery to improved recovery by water flood from water flood to polymer flood and from polymer flood to Alkaline Surfactant Polymer flood. The approach allows for early implementation of the development in a brown field environment
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Novel Alkyl Ether Sulfonates for Improved Oil Recovery from Yibal Field (Oman)
Authors M. Aoudia, R.S. Al-Maamari, M. Nabipoor, A.S. Al-Bemani and S. AyatollahiA09 Novel Alkyl Ether Sulfonates for Improved Oil Recovery from Yibal Field (Oman) M. Aoudia* (Sultan Qaboos University) R.S. Al-Maamari (Sultan Qaboos University) M. Nabipoor (Shiraz University) A.S. Al-Bemani (Sultan Qaboos University) & S. Ayatollahi (Shiraz University) SUMMARY This study investigates the possibility to inject dilute aqueous solutions of novel surfactants into the Yibal field (Sultanate of Oman). Novel surfactants selected in this work consists of a series of ether sulfonates (7-58 AES-128 AES-208 AES-218 AES-506) and an amphoteric surfactant (6-105). All surfactants displayed dynamic interfacial tension (IFT) behavior between Yibal oil and formation water at the average reservoir temperature
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New Microgels for EOR – From Laboratory to Field Applications
Authors D. Rousseau, R. Tabary, A. Zaitoun, T. Pichery, P. Mallo and O. BraunA10 New Microgels for EOR – From Laboratory to Field Applications D. Rousseau* (Institut Français du Pétrole) R. Tabary (Institut Français du Pétrole) A. Zaitoun (Poweltec) T. Pichery (Gaz de France) P. Mallo (SEPPIC) & O. Braun (SEPPIC) SUMMARY New microgels specifically designed for EOR applications were extensively studied at laboratory scale and subjected to a field test. Microgels are micron-scale particles of chemically crosslinked polymers. They are preformed stable fully water soluble non-toxic and both their size and rigidy are controlled during the manufacturing process. Microgels have remarkable mechanical and thermal stability. In porous media they gather important advantages:
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Application of Surfactant Mixtures as Mobility-Control Agents
Authors I.J. Lakatos, J. Tóth, T. Bódi, J. Lakatos-Szabó, P.D. Berger and C. LeeA11 Application of Surfactant Mixtures as Mobility- Control Agents I.J. Lakatos* (Miskolc University) J. Tóth (Research Institute of Applied Chemistry) T. Bódi (Research Institute of Applied Chemistry) J. Lakatos- Szabó (Research Institute of Applied Chemistry) P.D. Berger (Oil Chem. Technologies Sugar Land USA) & C. Lee (Oil Chem. Technologies Sugar Land USA) SUMMARY Based on the laboratory studies it was firmly proved that viscoelastic tensides may offer an excellent opportunity for mobility control in various enhanced oil recovery techniques (Sv Sv+AS ASSv and AS+ Sv) independent of injection protocol. Their positive influence on recovery efficiently can be explained by mobility
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Gravity Segregation in Non-Newtonian Foam IOR
Authors C. Shen, W.R. Rossen and Q.P. NguyenA13 Gravity Segregation in Non-Newtonian Foam IOR C. Shen* (The University of Texas at Austin) W.R. Rossen (Delft University of Technology) & Q.P. Nguyen (The University of Texas at Austin) SUMMARY A useful model for gravity override in gas IOR is Stone’s model (SPE 11140; SPE 12632) which describes gravity override during simultaneous water-gas flow into a homogeneous reservoir. Shi and Rossen (SPEREE April 1998) and Cheng et al. (SPE 59287 2000) extended the model to foam processes with Newtonian rheology and Rossen and van Duijn (J. Petr. Sci. Eng. 43 99-111 2004) showed that the model is rigorously correct
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3D Seismic Imaging of Structural and Lithofacies Properties and Time Lapse Monitoring of an EOR-CO2-Flood – Hall-Gurney Field
Authors A.E. Raef, R.D. Miller, A.P. Byrnes, W.L. Watney and E.K. FranseenA14 3D Seismic Imaging of Structural and Lithofacies Properties and Time Lapse Monitoring of an EOR- CO2-Flood – Hall-Gurney Field A.E. Raef* (Kansas Geological Survey-The University of Kansas) R.D. Miller (Kansas Geological Survey-University of Kansas) A.P. Byrnes (Kansas Geological Survey-University of Kansas) W.L. Watney (Kansas Geological Survey-University of Kansas) & E.K. Franseen (Kansas Geological Survey-University of Kansas) SUMMARY Time-lapse seismic was utilized to monitor carbon dioxide movement and aid reservoir modeling in an enhanced oil recovery/sequestration pilot study. The target interval was a 900-m deep 5-m thick oomoldic limestone. in the Hall-Gurney Field central Kansas USA. Fluid replacement modeling indicted
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Offshore CO2–EOR in the Heidrun Field
Authors A.S. Lackner, P.H. Janssen, J.A. Stensen and V. HaugseA15 Offshore CO2–EOR in the Heidrun Field A.S. Lackner* (Statoil) P.H. Janssen (Statoil) J.A. Stensen (Statoil) & V. Haugse (Statoil) SUMMARY For more than 30 years CO2 has been successfully used for onshore EOR in oil fields worldwide. Today with the focus on CO2 as both an EOR-agent in fields on declining production and for reduction of greenhouse gas emissions the interest for offshore CO2-EOR and storage has increased substantially. A planned gas power plant may supply oil fields in the Halten area with about 2.3 Mton of CO2 per year from 2011 on. The Heidrun field is a candidate
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Injectivity Impairment Due to Dissolution/Precipitation Processes During a CO2 Injection
Authors J.-M. Lombard, P. Egermann, O. Vizika, S. Bekri and B. BazinA16 Injectivity Impairment Due to Dissolution/ Precipitation Processes During a CO2 Injection J.-M. Lombard* (Institut Français du Pétrole) P. Egermann (Institut Français du Pétrole) O. Vizika (Institut Français du Pétrole) S. Bekri (Institut Français du Pétrole) & B. Bazin (Institut Français du Pétrole) SUMMARY Keeping the well injectivity over the lifetime of CO2 geological storage operations is crucial for the environmental technical and economical success of such projects. The specificity of a CO2 injection compared to a conventional hydrocarbon gas injection is the possibility for geochemical reactions to occur between the mobile reactive brine and the host formation. This leads
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Visualization of the Effects of Pressure and Gas CO2 Content on Asphaltene Precipitation while Displacement of Oil Via Gas
Authors V.A. Sajjadian, S. Nejadi and M. JahediA17 Visualization of the Effects of Pressure and Gas CO2 Content on Asphaltene Precipitation while Displacement of Oil Via Gas S. Nejadi (Arvandan Oil and Gas Production) V.A. Sajjadian* (Arvandan Oil and Gas Production) & M. Jahedi (Arvandan Oil and Gas Production) SUMMARY Asphaltene precipitation is a fact that leads to significant problems due to incompatibility of the fluids while gas injection to an oil reservoir for pressure maintenance or EOR purposes. In the current research nine experiments were carried out to study problems which might encounter while that mentioned phenomena. Sample of a gigantic Iranian gas reservoir combined with
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EOS Fluid Characterization Modeling for Miscible CO2 Flooding in Volve Field
More LessA18 EOS Fluid Characterization Modeling for Miscible CO2 Flooding in Volve Field T. Yang* (Statoil ASA) & G. Byberg (Statoil ASA) SUMMARY Due to increasing environmental concerns with CO2 and high demands of injection gas for improving oil recovery CO2 injection for IOR process is attracting more attentions recently in many fields world wide. Besides other important factors (e.g. reservoir properties production designs) EOS fluid characterization plays a critical role for the complex miscible displacement process. This paper describes the procedures to accurate build an EOS fluid characterization to match all related gas injection experimental data (including swelling multi-contact and
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Features Concerning Capillary Pressure and the Effect on Two-phase and Three-phase Flow
More LessA19 Features Concerning Capillary Pressure and the Effect on Two-phase and Three-phase Flow E.I. Dale* (Centre for Integrated Petroleum Research UiB) & A. Skauge (Centre for Integrated Petroleum Research UiB) SUMMARY The effect of capillary pressure related to immiscible WAG (Water Alternate Gas) is studied by use of a numerical simulator. The capillary pressure is found to have a significant effect on the pressure gradient and the total oil production both in two-phase and three-phase flow situations. When the capillary pressure is included in the simulation the total oil production is considerably lower than when the capillary pressure is neglected.
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Insights from Fractional-Flow Theory for Models for Foam IOR
Authors Y. Dong and W.R. RossenA20 Insights from Fractional-Flow Theory for Models for Foam IOR Y. Dong* (Shell International Exploration and Production Inc) & W.R. Rossen (Delft University of Technology) SUMMARY In recent years a number of models have been proposed for steady-state foam mobility for the purpose of representing foam IOR processes on the field scale. Most of these models include an abrupt coarsening of foam at a limiting capillary pressure or water saturation. The most promising way to inject foam in the field is as "surfactant-alternating-gas" or SAG. We survey published foam models from the point of view of fractional-flow theory with particular
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Gas Flooding a Tight and Heterogeneous Silicilite Reservoir – Quantification of Sweep Efficiency
Authors H. Al-Shuraiqi and V. van EngelenA21 Gas Flooding a Tight and Heterogeneous Silicilite Reservoir – Quantification of Sweep Efficiency H. Al-Shuraiqi* (Petroleum Development Oman) & V. van Engelen (Petroleum Development Oman) SUMMARY The Al Noor field was discovered in 1989 in the South Oman salt basin. The field is at a depth of 4 km and contains the unique Athel silicilyte. The reservoir has a gross thickness of around 400 m and is fully encased in sealing salt as a result of which the reservoir is geopressured to 80 MPa. The permeability is extremely low (typical 1 – 100 micro-darcy) due to the fact that
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Foamy Technologies for Increasing Gas Production
Authors A.Y. Khavkin, A.V. Sorokin, G.A. Lanchakov and V.N. MoskvichevA22 Foamy Technologies for Increasing Gas Production A.Y. Khavkin* (Russian Academy of Sciences) A.V. Sorokin (Russian Academy of Sciences) G.A. Lanchakov (UrengoyGasProm) & V.N. Moskvichev (UrengoyGasProm) SUMMARY By development of gas field with poorly connected rocks the real influence on efficiency of gas production is very important the sand control. We had been developed the technology of foamy systems application for reduction of volume of sand which move with gas in production well. The technology have provided the nec-essary properties of foamy system due to phase transitions in gas-liquid mixes depending on pressure of system. The test foam technology on
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The Road to Sour Gas Flooding of a High Pressure Reservoir
Authors H. Soek, D. Davis, A. Hadhrami and G. DeinumA23 The Road to Sour Gas Flooding of a High Pressure Reservoir H. Soek* (PDO) D. Davis (PDO) A. Hadhrami (PDO) & G. Deinum (PDO) SUMMARY A Cluster in South Oman is being developed in a staged manner for a miscible gasflood. The business drive is to deliver projects as fast as possible in a prudent manner. Acceleration needs to be balanced against the risk of a suboptimal development. Parallel working on appraisal and project definition is one answer. This article describes some of the learnings encountered on subsurface-surface interfaces and the advanced technologies utilised to monitor reservoir performance and
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