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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Porous Media
Импакт фактор: 1.49 5-летний Импакт фактор: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Выпуски:
Том 22, 2019 Том 21, 2018 Том 20, 2017 Том 19, 2016 Том 18, 2015 Том 17, 2014 Том 16, 2013 Том 15, 2012 Том 14, 2011 Том 13, 2010 Том 12, 2009 Том 11, 2008 Том 10, 2007 Том 9, 2006 Том 8, 2005 Том 7, 2004 Том 6, 2003 Том 5, 2002 Том 4, 2001 Том 3, 2000 Том 2, 1999 Том 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.2018029060
pages 53-71

OIL RECOVERY BY THERMAL EXPANSION FROM A HOMOGENEOUS DEFORMABLE POROUS MEDIUM

P. F. Aguilar-Gastelum
Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, C.P. 07730, Del. Gustavo A. Madero, Ciudad de México, México
Octavio Cazarez-Candia
Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, C.P. 07730, Del. Gustavo A. Madero, Ciudad de México, México

Краткое описание

In the oil industry, one of the main recovery mechanisms along the application of a thermal oil recovery method is thermal expansion. Thus, it is imperative to know its role under different reservoir conditions, taking into account the deformation of the porous medium. In this work, two mathematical models for oil and oil-water recovery from cores by thermal expansion are presented. One model allows the simulation of a core saturated with oil and the other one a core saturated with oil-water. The models involve hydrodynamics, heat transfer, and geomechanical phenomena, as well as a deformable mesh model for their numerical solution, which was obtained using the finite element method. Oil and water recovery, pressure, porosity, permeability, and core deformation were predicted for a core saturated with either oil or oil-water. The predictions agree very well with the theoretical data reported in literature. The effect of core deformation, due to pressure and temperature, on predictions was studied. It was found that under the simulation conditions used in this work, taking into account the geomechanical phenomena reveals that (1) the cumulative oil production, by thermal expansion, is larger than by a load and (2) the cumulative oil production is largest when both a load and thermal expansion are applied. Thus, thermal expansion is a very important mechanism for oil recovery and should be incorporated into oil recovery numerical simulations, through a geomechanical model, to compute porosity changes in a more realistic fashion.


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