--> Multicomponent, Multiphase Basin Modelling in One, Two, or Three Dimensions, by B. Mudford, P. K. W. Vinsome, and P. D. Lundegard; #90986 (1994).

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Abstract: Multicomponent, Multiphase Basin Modelling in One, Two, or Three Dimensions

Brett Mudford, P. K. W. Vinsome, P. D. Lundegard

In this talk we report the development of a basin-scale simulator that has the capability to model heat flow and multicomponent, multiphase fluid flow in an evolving sedimentary section over geologic timescales. Until recently, basin models have been restricted to two and three phase models in which the hydrocarbon properties are simplified in order that the flow equations can be solved. We have developed a basin-scale simulator, or hydrocarbon Generation, Expulsion and Migration MODel (GEMMOD) by modifying a multipurpose reservoir simulator. The reservoir simulator can be run in any one of four modes: black oil, multicomponent, thermal or geothermal, and is known as TETRAD (group of four). By developing a basin modelling package from TETRAD, we have retained the ability to model comp ex mixtures of hydrocarbon fluids while adding the capability to model sedimentation, erosion, and hydrocarbon generation and cracking. A further powerful feature of GEMMOD is that it can be run as a one, two or three dimensional model simply by specifying gridblock connectivity. The basic model formulation will be presented along with a number of test cases that have been used to investigate model sensitivity, and to validate the model.

AAPG Search and Discovery Article #90986©1994 AAPG Annual Convention, Denver, Colorado, June 12-15, 1994