Method for updating a geological reservoir model by means of dynamic data
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United States of America Patent
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Apr 22, 2008
Grant Date -
Mar 8, 2007
app pub date -
Sep 5, 2006
filing date -
Sep 5, 2005
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Abstract
A method for updating a geological reservoir model by integration of dynamic data having application, for example, to petroleum reservoir development. An initial map (y) of petrophysical properties is constructed by means of a geostatistical simulator and of static data. Then an initial set of gradual pilot points (PP.sub.i) and at least one complementary set of gradual pilot points (PP.sub.c) are constructed. A combined set of gradual pilot points (PP(t)) is then constructed by combining these sets of gradual pilot points according to the gradual deformation method wherein at least one deformation parameter is a characteristic parameter of said pilot points (position and/or value). The initial map (y) is then modified, the deformation parameters are modified according to the dynamic data and the procedure is repeated until a stop criterion is reached and the geological reservoir model is updated by associating the map thus optimized with the grid of the model.
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