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Title: A new representation of wells in numerical reservoir simulation

Journal Article · · SPE Reservoir Engineering (Society of Petroleum Engineers); (United States)
DOI:https://doi.org/10.2118/25248-PA· OSTI ID:7306086
;  [1]
  1. Inst. Francais du Petrole, Rueil Malmaison (France)

Numerical PI's are used to relate wellblock and wellbore pressures and the flow rate of a well in reservoir simulations by finite difference. This approach is based on an equivalent wellblock radius'', r[sub eq,o]. When nonuniform grids are used, r[sub eq,o] may create an error in wellbore pressure or oil rate. This paper presents a new well representation. The analytical solution for near-well pressure is included by modifying the transmissibilities between gridblocks so that flow around as well is described fully. The new method is applicable to non-uniform grids and nonisolated wells.

OSTI ID:
7306086
Journal Information:
SPE Reservoir Engineering (Society of Petroleum Engineers); (United States), Vol. 9:2; ISSN 0885-9248
Country of Publication:
United States
Language:
English