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Abstract:

A radial semi-implicit model of two-phase (oil-gas) flow toward a well is developed by creatively modifying the IMPES black-oil model. Traditional black-oil models consider the well as a source term in the differential equations with the hypothesis of single-phase flow, whereas this model considers well production conditions as boundary conditions that take into account two-phase flow. Two production conditions are applied: constant total (oil and gas) flow rate and constant oil flow rate. Numerical instabilities generated by IMPES are analysed. The maximum time increment to maintain stability is obtained. For the constant total flow rate, that maximum decreases until a minimum, and then increases with production time. For the constant oil flow rate, that maximum diminishes as production time increases. These stability restrictions, including the boundary conditions, are new. This model, with the known oil flow rate condition, is adequate to be included in an inverse algorithm of well test interpretation. © 2005 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Simulation of the oil and gas flow toward a well - A stability analysis
Autor:Savioli, G.B.; Bidner, M.S.
Filiación:Reservoir Engineering Laboratory, University of Buenos Aires, CONICET Ciudad Universitaria, Pabellón de Industrias, 1428 Buenos Aires, Argentina
Reservior Laboratory, University of Cuyo, Centro Universitario, 5500 Mendoza, Argentina
Palabras clave:Finite differences; IMPES; Reservoir simulation; Stability analysis; Two-phase flow; Well testing; Black-oil models; Flow rate; Gas flow; Single-phase model; Algorithms; Asymptotic stability; Boundary conditions; Computer simulation; Differential equations; Flow of fluids; Gases; Mathematical models; Crude petroleum; fluid flow; hydrocarbon reservoir; fluid flow; hydrocarbon reservoir; reservoir characterization
Año:2005
Volumen:48
Número:1-2
Página de inicio:53
Página de fin:69
DOI: http://dx.doi.org/10.1016/j.petrol.2005.04.007
Título revista:Journal of Petroleum Science and Engineering
Título revista abreviado:J. Pet. Sci. Eng.
ISSN:09204105
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09204105_v48_n1-2_p53_Savioli

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Citas:

---------- APA ----------
Savioli, G.B. & Bidner, M.S. (2005) . Simulation of the oil and gas flow toward a well - A stability analysis. Journal of Petroleum Science and Engineering, 48(1-2), 53-69.
http://dx.doi.org/10.1016/j.petrol.2005.04.007
---------- CHICAGO ----------
Savioli, G.B., Bidner, M.S. "Simulation of the oil and gas flow toward a well - A stability analysis" . Journal of Petroleum Science and Engineering 48, no. 1-2 (2005) : 53-69.
http://dx.doi.org/10.1016/j.petrol.2005.04.007
---------- MLA ----------
Savioli, G.B., Bidner, M.S. "Simulation of the oil and gas flow toward a well - A stability analysis" . Journal of Petroleum Science and Engineering, vol. 48, no. 1-2, 2005, pp. 53-69.
http://dx.doi.org/10.1016/j.petrol.2005.04.007
---------- VANCOUVER ----------
Savioli, G.B., Bidner, M.S. Simulation of the oil and gas flow toward a well - A stability analysis. J. Pet. Sci. Eng. 2005;48(1-2):53-69.
http://dx.doi.org/10.1016/j.petrol.2005.04.007