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套管外封隔器应用 ,是大庆油田进行薄层封窜的有效固井工艺措施之一 ,是搞好三次加密的有力技术保证 ,也是开发薄差油藏的重要技术手段 ,具有极大的经济效益和社会效益。文中简要论述了薄层封窜的意义 ,简介套管外封隔器的用途和工作原理 ,并对套管外封隔器提高固井质量的机理和薄层封窜增油降水的应用实例分析 ,对套管外封隔器薄层封窜的工艺措施及套管外封隔器薄层封窜的经济效益进行评价。
The application of the casing packer is one of the effective cementing measures in Daqing Oilfield for thin-layer sealing and channeling. It is a powerful technical guarantee to improve the third-time encryption and is also an important technical means for developing thin-poor reservoirs with great Economic and social benefits. In this paper, the significance of thin-layer sealing and channeling is briefly discussed. The application and working principle of external-sealing tube packer are introduced. The application of external casing packer to improve the cementing quality and application of thin- , The technical measures of sealing and sealing of the outer casing packer and the economic benefits of sealing and sealing of the outer casing packer were evaluated.