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通过注水井向油层注水补充能量,保持油层压力,是目前油田经常采用的一项重要的开发措施[1]。本文叙述了某区块油藏的开发动态,对注水开发的可行性进行了分析,并用经验公式法、驱油效率法和井网密度法3种方式对注水开发后最终采收率预测:依靠自然能量开发,采收率仅为10%,而注水补充能量开发,最终采收率为23%,采收率提高1.3倍,具有良好的经济效益。
It is an important development measure commonly used in the oil field at present [1] to inject water into the reservoirs to supplement energy and maintain reservoir pressure. This paper describes the development of a block reservoir and analyzes the feasibility of water injection development. The empirical prediction method, oil displacement efficiency method and well pattern density method are used to predict the final oil recovery after water injection development. Natural energy development, the recovery rate of only 10%, and water injection energy development, the final recovery rate of 23%, recovery of 1.3 times, with good economic benefits.