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水平分支井排水采油提高强底水薄油层产量 被引量:2

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摘要 排水采油是指在原来的水平井下部,再增加一个水平分支,用于排水。井身结构中有一个分支位于油层顶部,用于采油,另一分支位于水层。通过新增分支井进行排水,能够达到延缓水脊和减少死油区的目的。为论证水平分支井排水采油的有效性,研究排水采油的影响因素,采用油藏数值方法,建立机理模型,对水平分支井排水采油进行模拟研究。在塔河油田KZ1区块中,将双层完井排水采油方案与衰竭开发方案进行对比可以发现,前者能够显著地降低油井含水率,生产10年累积增产原油超过30%;从剩余油的分布图也可以发现,水平分支井排水采油能够有效控制底水脊进。
出处 《油气田地面工程》 北大核心 2011年第10期17-19,共3页 Oil-Gas Field Surface Engineering
基金 国家重大专项基金(2009ZX05)资助
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