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Description
High-fidelity reservoir simulators can predict well-pressure behaviour, but the mechanisms linking perforation depth, saturation changes, and injection-energy demand are often difficult to isolate. This paper presents an interpretable reduced-order 3D streamline model for water injection in anisotropic reservoirs with point-perforated vertical wells. It reveals how perforation depth, streamline length, vertical flow and anisotropy influence well-pressure and energy consumption. Traced streamlines are discretized into streamline-aligned segments to compute direction-dependent permeability, hydraulic resistance, flow redistribution, pressure-drop, pump-power, cumulative energy, and production metrics. Buckley-Leverett transport along producer-connected streamlines estimates water breakthrough, watercut, cumulative production, and energy consumed per barrel produced oil.
The model is applied to a North Sea-inspired configuration with a central producer and two flank injectors. The producer is perforated high in the reservoir, while injector perforation depth is varied from low to middle and high positions. The study evaluates effects on streamline geometry, well-pressure response, oil recovery and injection-energy efficiency, and assesses whether the oil-maximizing perforation strategy also minimizes energy per produced barrel. Analytical consistency checks and selected OPM Flow benchmarks support the framework.
| Topic Area | Advanced Computational Methods and Applications in Marine, Subsea and Offshore Technology |
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