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Petroleum Geoscience

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Scale-up of well performance for reservoir flow simulation

¹ Department of Earth Science and Engineering, Imperial College, London SW7 2AZ, UK
² TotalFinaElf Exploration UK plc, 33 Cavendish Square, London W1G 0PW, UK
³ TotalFinaElf SA, 64018 Pau, France

The method of Ding for scaling-up in the near-well region is evaluated on a variety of two- and three-dimensional problems, including cases with partially penetrating wells and some with non-vertical wells. The method is found to work well for all cases tested although accuracy is in general lower for 3D cases and possibly for wells producing at constant bottom hole pressure. The computational effort involved in the scaling-up can be minimized by use of a reduced computational domain with only a slight degradation of the results. Both well index and modified horizontal transmissibility are required for satisfactory results, but use of modified vertical transmissibility appears to be unnecessary.

KEYWORDS: Scale-up, well performance, simulation