Method for reservoir simulation utilizing heavy oil solution gas drive

The invention discloses a method, a system and a program storage device for predicting a property of a fluid, such as fluid production from a subterranean reservoir containing heavy oil entrained with gas. The method includes obtaining a baseline correlation between gas relative permeability krg and...

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Bibliographic Details
Main Authors SAHNI AKSHAY, KUMAR MRIDUL, GADELLE FREDERIC
Format Patent
LanguageChinese
English
Published 12.10.2011
Subjects
ANALOGUE COMPUTERS
CALCULATING
COMPUTING
COUNTING
PHYSICS
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Summary:The invention discloses a method, a system and a program storage device for predicting a property of a fluid, such as fluid production from a subterranean reservoir containing heavy oil entrained with gas. The method includes obtaining a baseline correlation between gas relative permeability krg and gas saturation Sg. A capillary number dependent correlation is determined by at least one relation between critical gas saturation Sgc and capillary number Nca and gas relative permeability Krgro and capillary number Nca based on a plurality of depletion rates. The capillary number N(c) is calculated for a plurality of cells in a reservoir model representative of the subterranean reservoir. The baseline correlation is then adjusted to comport with at least one of Sgc and krgm values which are selected from the capillary number dependent correlations. Thus a plurality of corresponding adjusted baseline correlations are then developed. The gas relative permeability krg for a plurality of cells is selected according
Bibliography:Application Number: CN200680052503