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IOR 2011 - 16th European Symposium on Improved Oil Recovery
- Conference date: 12 Apr 2011 - 14 Apr 2011
- Location: Cambridge, UK
- ISBN: 978-90-73834-07-1
- Published: 12 April 2011
1 - 20 of 71 results
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Application of Dynamic Gridding Techniques to IOR/EOR Processes
Authors D. W. Van Batenburg, A. H. De Zwart, P. M. Boerrigter, M. Bosch and J. C. VinkThis paper describes applications of a robust nested dynamic grid method that dynamically determines grid modifications in an implicit simulation mode. The implicit nature allows for the use changes of properties in space and time to define refinement/coa
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Water Flooding Simulation by an Adaptive Upscaling – Downscaling Scheme
Authors M. Babaei and P. R. KingThe ever-increasing level of geological details and complexity of reservoir models have created computational difficulties for reservoir simulators so that upscaling of properties such as permeability have become common in petroleum industry. In an upscal
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Mechanistic Pore Scale Modelling of EOR Processes
Authors A. Skauge and S. F. BolandtabaA novel concept for modelling pore-scale phenomena included in several enhanced oil recovery (EOR) methods is presented. The approach combines quasi-static invasion percolation models with single-phase dynamic network modelling in order to integrate mecha
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The Design and Optimization of Polymer Flooding Under Uncertainty
Authors A. M. AlSofi and M. J. BluntWe use a streamline-based simulator that accurately captures non-Newtonian rheology and controls numerical dispersion to investigate polymer flooding design. First, we develop and test a parallel design algorithm to optimize polymer floods with respect to
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Effects of Surfactant on Wettability and Oil Recovery in a Pore Network Model
Authors E. Unsal, P. Hammond and M. SchneiderSurfactants may affect oil-water displacement in porous media in two ways, by changing wettability and contact angle, and reducing the interfacial tension. Therefore, in a two phase system, when a wettability-altering surfactant solution is injected, the
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Simulation of Three-phase Flow in Porous Media Including Capillary Pressure Representing Variation in Rock Wettability
Authors A. Be, A. Skauge and M. DelshadThe effect of including a three-phase representation of the flow parameters has been investigated using a three-phase simulator in a black oil modulus. The simulation approaches include the complexity of three-phase flow, relative permeability hysteresis,
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Understanding the Mobile Oil Zone in the Toe-to-heel Air Injection (THAI) Process
Authors M. Greaves, L. L. Dong and S. P. RigbyConventional in situ combustion (ISC) has largely failed to establish itself as a major heavy oil recovery process. The recent field piloting of the THAI process (Toe-to-Heel Air Injection) by Petrobank, in the Athabasca Oil Sands, Canada, seems set to d
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Multiphase Multicomponent Thermal Models and Their Application to In-situ Combustion
Authors F. B. J. Monmont, S. Lovett and N. NikiforakisThis work is concerned with the numerical solution of equations for the simulation of multi-component, two-phase, thermal flows in porous media and its application to model the in-situ combustion process. The basis of the sequential formulation for the n
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Synergism of Physicochemical and Thermal Methods Intended to Improve Oil Recovery from High-viscosity Oil Pools
Authors L. K. Altunina, V. A. Kuvshinov, S. O. Ursegov and M. V. ChertenkovPresented are the results of laboratory research and pilot tests of complex IOR-technologies intended to improve oil recovery from high-viscosity oil pools. The technologies demonstrated synergism of thermal-steam and physicochemical treatments. To improv
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Comparison of Coreflooding Experiments – Steam Injection with Steam & Solvent Injection
More LessThe ES-SAGD process has gained a lot of importance in the recent years because of its benefits over SAGD and VAPEX process. The principle of ES-SAGD is to co-inject solvent (pure or mixture) with steam in order to improve the oil-drainage efficiency and r
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Cycling Steam Injection Pilot Project – A Case Study with Successful Results
Authors G. A. Carvajal, G. Parra, J. Guevara, A. Suarez and R. TineoA cycling steam injection (CSI) pilot project was executed in vertical and horizontal wells with operational success in Orocual Field, eastern area of Venezuela. The field contains massive resources of heavy oil that have been exploited without thermal pr
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The Contribution of Different Oil Recovery Mechanisms for Heavy and Light Oil During Thermally Assisted Gas-oil Gravity
Authors A. S. Al Rabaani and A. MuggeridgeThermally Assisted Gas-Oil Gravity Drainage (TA-GOGD) is an EOR process for fractured reservoirs. Steam is injected and flows through the high permeability fracture network heating the rock matrix and the oil contained within that matrix. A range of proce
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Investigations into Oil Recovery and Drainage Rates During Vapour Extraction (VAPEX) of Heavy Oils
Authors A. H. Zainee, A. Alkindi and A. MuggeridgeHeavy oil recovery using the Vapour Extraction (VAPEX) process is a promising EOR technique as it is more energy-efficient than thermal recovery processes. It works via similar mechanisms to SAGD but uses solvent vapour to dilute the oil rather than heat
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Investigation of Three-phase Relative Permeabilities and Hysteresis Effects Applicable to Water Alternating Gas Injection
Authors H. Shahverdi, M. Sohrabi, M. Jamiolahmady, M. Fatemi, S. Ireland and G. RobertsonLarge quantities of oil usually remain in oil reservoirs after conventional water floods. A significant part of this remaining oil can still be recovered economically by Water-Alternating-Gas (WAG) injection. Accurate numerical simulation of complex three
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Structural Characterization of Porous and Granular Materials
Authors R. Hihinashvili and R. BlumenfeldThe morphological details of permeable porous materials impact significantly their macro-scale properties and in particular transport properties (e.g. permeability). A programme to derive macroscopic behaviour and responses from pore-scale information is
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Detrimental Effect of Wettability and Capillary Forces in Tight Sand and BCGA Reservoirs
Authors I. J. Lakatos, T. Bódi and J. Lakatos-SzabóThe laboratory studies were focused on tight sand gas and BCGA formations with the aim at demonstrating the detrimental effect of wettability and capillary forces on imbibition and drainage phenomena in natural cores derived from depth of 4000-6500 m. Acc
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Visual Investigation of Extra-heavy Oil Recovery by CO²/N2 Foam Injection
Authors A. Emadi, M. Sohrabi, M. Jami, S. Ireland and G. RobertsonCompared to light oil, application of CO2 injection in heavy oil reservoirs has received much less attention. CO2 lacks acceptable sweep efficiency due to a large viscosity contrast between CO2 and heavy oil and the displacement process is almost always i
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Experimental Studies of Unstable Displacement in Carbonate and Sandstone Material
Authors A. Skauge, T. Horgen, B. Noremark and B. VikThis paper is an experimental study of unstable miscible displacement in porous media, focused on viscous fingering instability. Experimental study of viscous unstable miscible displacements, have been made in 2D slabs of Bentheimer sandstone and vuggy ca
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Oil Recovery by Water-alternating-gas (WAG) Injection under Low Gas − oil IFT in Water-wet and Mixed-wet Rocks
Authors S. M. Fatemi, M. Sohrabi, M. Jamiolahmady, S. Ireland and G. RobertsonWe report the results of a comprehensive series of coreflood experiments carried out to investigate the physical mechanisms involved in WAG injection and to quantify the amount of additional oil recovery by WAG injection. A series of experiments were firs
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A Comprehensive Study on Simulation of CO² Injection in Southwest Iran
Authors S. S. Ghorashi, B. A. Habibnia and L. MonghadThere is a consensus among specialists that Carbon dioxide (CO2) flooding is an effective method of enhanced oil recovery. CO2 injection causes oil swelling, reduction in the oil viscosity, oil vaporization and improving oil displacement by miscibility. I
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