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This article provides a detailed analysis of the mechanisms behind bottom-water coning and water breakthrough in bottom-water reservoirs. Addressing critical production challenges such as the rapid rise of the water-oil contact (WOC) and declining crude oil output, it systematically outlines conventional strategies for water control and oil stabilization. These include managing critical production rates, utilizing horizontal wells, applying chemical and mechanical water shutoff, and optimizing artificial lift processes, offering a valuable technical reference for oilfield development and production engineering.