【摘要】 针对WQ油藏C区块地质情况与开发存在的问题，提出了适合该区块的周期注水模式。根据调研及开发实践，总结了适用于特低渗油藏的不同含水率类型井组差异化注水方法；对C区块划分了三个典型井区：原始低含水区域A、原始中含水区域B、原始高含水区域C，分析了不同区域的开发特征，并针对不同区域油井提出了差异化注水方式建议。研究将对提高注入水波及效率、改善油田开发效果提供有效指导。更多还原

【Abstract】 According to the geological conditions and development problems of block C of WQ reservoir, a periodic water injection mode that suitable for this block is proposed. According to the research and development practice, the differential water injection methods of ultra-low permeability reservoirs for well groups with different water cut are summarized. Three typical well areas are divided in block C: the original low water cut area A, the original medium water cut area B, and the original high water-cut area C. Development characteristics of different areas are analyzed,and differentiated water injection methods for oil wells in different areas are proposed. This research will provide effective guidance for improving the sweep efficiency of injected water and improving the oilfield development performance.更多还原