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IOR 1997 - 9th European Symposium on Improved Oil Recovery
- Conference date: 20 Oct 1997 - 22 Oct 1997
- Location: The Hague, Netherlands
- ISBN: 978-90-73781-08-5
- Published: 20 October 1997
61 - 72 of 72 results
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Improved Oil Recovery from the Watered Productive Strata in the Carbonate Reservoirs
Authors R. K. Muslimov, A. S. Gazizov, L. A. Galaktionova and A. A. GazizovThe zones having poor reservoir properties remain unrecovered in flooding of the carbonate producing formations characterized by presente of many fractures in combination with low-permeability matrix. To solve the problem the technology for the treatment of the oil- and water-saturated reservoirs based on an increase of filtration resistance of the high-permeability watered reservoir zones using the polymer-dispersion systems (PDS) consisting of water-soluble polymers, dispersion rock particles and modifying additives has been developed.
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Computer Modelling of Foam Flow Through 3D Capillary Network
Authors V. Zemskikh and M. KrylovaThe foarn has well-known applications in oil recovery [1]. Applying foam-based methods in IOR requires accurate prediction of it performance which is impossible without an adequate treatment of foam flow. We suggest that a presence of foam in porous media transforms an original capillary size distribution to an effective one. The aim of this paper is to investigate roles of this kind of transformation.
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Laboratory Simulation of Rock Massif Deformation in the Vicinity of Decompression Zone
Authors S. B. Turuntaev and V. N. KondratjevAn experimental study of rock massif laboratory sand model reaction on decompression zone origin due to fluid extraction was carried out. It was found that an arch structure of density changes was formed above the decompression zone. The arch structure, which bears a load of the sand upper layer, can be destroyed by action of seismic waves. The destruction of the arch causes pressure increase in decompressed zone. The value of the pressure increase is directly proportional to the depth of decompression zone and inversely proportional to the dimension of the zone.
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Application of Gel-Forming Compositions for Enhanced Oil Recovery
Authors R. K. Muslimov, S. N. Golovko, Y. N. Arefvev and M. I. ZalalievIt is established that an increase of oil viscosity and heterogeneity of porous medium results in drastic decrease of recovery factor. Heterogeneity of porous medium causes irregularity of displacement front and at the same time water drive of high-viscosity oil is accompanied by viscosity instability even in the uniform reservoirs.
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Improvement Oil Recovery from Reservoirs by Gaseous Agent Injection
Authors A. Gritsenko, R. Ter-Sarkisov, A. Shandrygin and O. VlasenkoThe gas agents injection into oil deposits is one of the effective methods of the development. The oil recovery from reservoir at gas injection occurs under conditions of the multicontact miscible oil displacement.
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Testing Gel-Technology for Filtration Flow Control Under Reservoir Flooding in Oil Fields of Southern Vietnam Shelf
At present the important problem of flooding in oil fields of southern Vietnam shelf consists in filtration flow balancing of injected water. High formation temperatures limit the employment of conventional methods.
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Macroscopic Description of Foam Flow Through Porous Media
By V. ZemskikhIn this paper we investigate theoretically the possibility to describe foam flow through porous media based upon the usual equations for two phase flow of immcisible fluids through porous media. We found class of solutions which can describe the main features of foam flow during gas mobility reduction (gas-blocking regime). An expression for the "gas mobility reduction factor" has been derived from the current consideration. The analysis of this expression shows that this factor is equal to (liquid mobility without foam)/(gas mobility without foam) at liquid saturation very closed to the irreducible one. A method for calculating of the gas mobility reduction factor is proposed .
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Regression Analysis and C7+ Description for Accurate PVT Data Calculations with Equations of State
Authors D. V. Nichita, F. Minescu and I. CretuSimulation of improved recovery processes from gas condensate and volatile oil reservoirs is significantly affected by the match of experimental PVT data. Therefore, a proper characterization of the mixture composition and the tuning of the equation of state used are crucial for the accuracy of the reservoir model.
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Rheochemical Technologies to Improve Oil Recovery and Stimulate Oil Production
The efficiency and reliability of IOR techniques and production stimulation methods wholly depend on the quality level and amount of stimulation and isolation repair works and on the reasonable choice of chemicals used for oil recovery operations.
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Geosciences at the Turn of the Millenium and Development of Oil Field
Authors O. L. Kouznetsov, A. K. Mirzadzhanzade and A. K. ShakhverdievSince the middle of 1980s authors of this paper are involved in formation of a new paradigm of the Earth sciences which is based on the crucially new models deseribing the structure and dynamics of geological media (Fig. 1).
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Evaluationof the IOR - Potential on the Norwegian Continental Shelf
Authors O. S. Krakstad, S. R. Jakobsen and M. BertheussenAccording to the current prognosis the total oil production, from existing fields and from fields with sanctioned development on the Norwegian Continental Shelf (NCS), will decline within a few years. In ten years, the oil production is expected to drop to one third of the present level of 180 MSm³/year (1.1 billion bbl/year).
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