Flow in porous medium of two phases presenting a low interfacial tension
Physical mechanisms involved when injecting an aqueous solution of surfactant either by forced displacement during tertiary recovery or by spontaneous imbibition in the case of a fractured reservoir, are not very well known. To the difficulties due to the poorly understood fluid mechanics in porous medium are added those due to physico-chemical mechanisms (liquid/ liquid and liquid/solid interactions) which are also poorly known. The roles of coalescence and interfacial rigidity between two fluids have been investigated on low interfaced tension diphasic flows during a tertiary recovery. An oil phase flow model, in discontinuous form, has been established and compared with experimental results both in micromodels and in porous media. The effect on oil recovery of dropping the interfacial tension to the limits of a matrix block during spontaneous imbibition has also been studied.
Bibliographic Reference: EUR 12164 EN (1989) FS, 79 pp., ECU 7.50
ISBN: ISBN 92-825-9951-5;CD-NA-
Record Number: 198910923 / Last updated on: 1994-12-01
Original language: en
Available languages: en