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Why might water be injected during a steam-flooding operation?
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heavy oil and tar sand
Major oil fields of the Arabian-Iranian basin region.
In steam-flooding operations, water is sometimes injected at an optimum time to assist in pushing the steam toward the production wells. Because steam generation is a relatively high-cost process, this technique helps manage the efficiency of the displacement process.1
It is important to note that while water injection is a standard practice in waterflooding to maintain reservoir pressure or displace oil, its role in steam flooding is specifically to optimize the movement of the steam, which serves the dual purpose of heating the heavy oil and transporting it to the surface.12