Wettability Alteration Using Silane to Improve Water-Alternating-Gas Injectivity.

Over an eight-month period, the initial water injection rate averaged about 350 barrels per day. Following two cycles of rich gas injection, the water injection rate dropped to a stable 100 barrels per day for the same injection pressure. Interestingly, the gas cycles show a decreasing trend in the injection rate, indicating that injectivity loss is not only encountered during the liquid cycle.

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