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IOR 1995 - 8th European Symposium on Improved Oil Recovery
- Conference date: 15 May 1995 - 17 May 1995
- Location: Vienna, Austria
- ISBN: 978-94-6282-125-5
- Published: 15 May 1995
41 - 60 of 87 results
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An Upscaling Technique for Production Forecasting of Gas Recycling in a Near - Miscible Oil Reservoir
Authors M. M. Hanssen and K. HoveThis paper describes a method used for scaling black oil production profiles in order to account for compositional effects taking place during a gas recycling scheme in a neer miscible reserv oir The procedure has successfully been used for the Njord Field offshore mid-Norway.
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Transient Foam Flow in Porous Media: Experiments and Simulation
Authors O. Fergui, M. Quintard, H. Bertin and D. DefivesGas injection in the form of foam is an excellent way to enhance gas mobility control and overcome problems caused by density differences encountered duririg IOR operations.
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A Foam Pilot Test Aimed at Reducing Gas Inflow in a Production Well at the Oseberg Field
Authors M. G. Aarra, A. Skauge, S. Soegnesand and M. StenhaugIn June 1994 a foam pilot test was performed in a production well at the Oseberg field, North Sea. The Oseberg field is developed by updip gas injection and are currently experiencing gas breaktbrough in some of the production wells.
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Modelling and History Matching of Foam Field Pilot, Oseberg Field
Authors L. M. Surguchev, S. Soegnesand, A. Skauge and M. G. AarraGas coning and breakthrough problems in production wells are common for reservoirs under gas injection. like Oseberg. One approach to reduce gas inflow is placement of a foam region around the production well. A pilot test was initiated to evaluate if foam has a potential for reducing gas inflow to the production wells.
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Preliminary Study of a New Dynamic Technique to Prevent Water Coning
Authors G. Renard, Cl. Palmgren, C. Gadelle, L. Lesage, A. Zaitoun, Ph. Corlay and G. ChauveteauIn many oil (and gas) reservoirs throughout the world, oil recovery is strongly affected by the presence of a bottom aquifer. The drawdown imposed in production wells induces the water to rise forming a cone.
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Practical Experience with Water Control in Gas Wells by Polymer Treatments
Authors G. Pusch, N. Kohler and H. J. KretzschmarThe paper deals with the appraisal and application of water control technologies for gas wells and gas storage wells.
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Polymer Flooding: Still a Viable IOR Technique
Authors F. E. de Bons and R. W. BraunThis paper reviews twelve international po!ymer floods. both pilots and fieldwide projects, conducted between 1975 and 1992. The field conditions, designs, and performances of these projects are analyzed and compared with polymer floods conducted in the United States.
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Laboratory Evaluation of a New Selective Water Control Treatment and its Implementation in a North Sea Well
Authors M. Zettlitzer, W. Schuhbauer and N. KohlerIn a French-German cooperation, a new weak gel consisting of a nonionic high-moIecular- weight polysaccharide and an organometallic activator was developed for harsh reservoir conditions. Gel formation is delayed in surface conditions, but a gel progressively forms at reservoir temperature and selectively reduces water production, with Iimited effect on oil flow.
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An Evaluation of Stable Gel Systems for Deep Injector Treatments and High Temperature Producer Treatments
Authors B. A. Kvankik, J. Kolnes, T. Tyvold, S. Nilsson, B. Matre, B. Skjellerudsveen and K. OlafsenThis paper presents a summary of the activity on gel in the Norwegian RUTH (Reservoir Utilisation through advanced Technological HeIp) research program. RUTH is a four year research program, started in 1992.
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Performance of a Single Well Surfactant Tracer Test in the Gullfaks Field, Norway
Authors A. Nordbotten, T. Maldal, E. Grilje, St. Svinddal and R. KristensenThe surfactant test initiated in a GulIfaks Well in January 1991¹, was interrupted before surfactant injection due to operational problems in the well. Based on this experience, a new well was identified, and a single well surfactant injection test was planned and conducted during the first half year of 1992. The results, and a discussion of both the results and the experiences, are presented for the two well operatons.
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Foam Field Tests: State of the Art and Critical Review
Authors L. M. Castanier and J. E. HanssenThis paper gives a current overview of field experience with the use of foam for improved recovery and a critical evaluation of selected pilot projects. The focus is on identifying and describing critical problems encountered in foam tests and suggesting improvements.
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Simplified Mechanistic Modelling of Foam Processes for Improved Oil Recovery
Authors S. C. Zeilinger, J. X. Shi, M. T. Lim and W. R. RossenThis paper describes simplified mechanistic foam modeling using fractional-flow methods and a simulator that incorporates the fixed-limiting-capillary-pressure model for foams.
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Role of Diffusion and Shut-Off Time in Well Treatment Technology
Authors I. Lakatos and J. Lakatos-SzaboAn analysis of ion diffusian in polymer/silicate gels is detailed. The diffusion coefficient, break-through time and retention of chromium ions was determined as a function of gel composition and geometry and temperature. The activation energy of diffusion was also calculated.
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Polymer Flooding: Appraisal of Four Different Field Projects in Germany
Authors W. Kleinitz and W. LittmannPreussag accomplished four polymer flood projects during the Iast 10 years in their oil fields in Germany. In three projects (Eddesse-Nord, Vorhop-Knesebeck and Scheerhorn) xanthan broths were used from different producers. The project in the Adorf field was carried out with polyaczylamide.
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Field Application and Simulation of Foam for Gas Diversion
Authors S. Mohammadi, J. Collins and D. A. CoombeField application of foam for gas diversion was conducted in a gas condensate reservoir. The application included two years of foam injection in a single pattem, monitonng of condensate recovery in pattern producers and simulation of the process.
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Foam Barriers against Gas Coning: Physical-Model and Mechanistic Simulation Study
Authors A. R. Kovscek, T. W. Patzek, C. J. Radke, J. E. Hanssen, L. M. Surguchev and S. EkrannGas coning contributes to unfavorably high gas/oil ratio (GOR) in reservoirs with a gas cap. We investigate a novel treatment technology, currently under consideration for a field trial for prevention of gas coning with an integrated experimental and simulation study.
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Isolation of Gas with the Self-Sealing Compositions
Authors A. Kh. Mirzadzhanzade, I. M. Ametov, S. P. Shandin and N. O. CherskayaOperation of the oil producing wells at the oïl fields, possessing a highly fractured reservoirs and a high gas-oil ratios is extremely complicated due to complexities in performing of workovers, as well as due to unreliability of the existing technologies.
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Emulsified Solvent Flooding: A Non-Thermal IOR Alternative for Thin, Heavy Oil Reservoirs?
Authors H. K. Sarma and B. B. MainiThis experimental study evaluates the heavy oil recovery potential of a novel non-thermal IOR process which uses emulsified solvents to displace the oil. The process, if successful, would have wide application in thin heavy oil reservoirs (such as those in Alberta and Saskatchewan) which are urtsuitable for thermal methods due to excessive heat Iosses to underlying and overlying formations.
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Assessment of Foam for Deep Flow Diversion
Authors S. G. Goodyear and P. I. R. JonesFoam injection has a number of possible applications as an IOR technique. Laboratory studies of foam flow in porous media suggest that relative foam mobility is approximately inversely proportional to permeability. This means that foam has potential as a flow diversion agent, in principle sweeping low permeability regions as affectively as high permeability regions.
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