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Evolution of gas from liquids flowing through porous media
Author(s) -
Hunt E. B.,
Berry V. J.
Publication year - 1956
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690020426
Subject(s) - porous medium , bubble , diffusion , work (physics) , porosity , gas bubble , bubble point , gaseous diffusion , gas phase , mechanics , process (computing) , chemistry , petroleum engineering , thermodynamics , physics , geology , computer science , organic chemistry , electrode , operating system
The production of oil and gas by pressure depletion involves both the formation of bubbles and the diffusion of gas from the liquid phase into these bubbles. Studies were undertaken to outline in detail the process of bubble formation when the driving force is small. This work shows that the formation of bubbles is a random process which can, however, be described by a simple probability distribution function. Also, calculations have been made to determine how fast gas will diffuse into uniformly distributed gas bubbles. These results make it possible to describe the manner in which a gas phase is established during the pressure depletion process. In this process the rate of pressure decline is the most important factor influencing the total number of bubbles produced. Laboratory tests have substantiated the finding that in certain types of porous media the amount of oil recovered is sensitive to the number of bubbles formed.