Optimizing casing retrieving depth and side-tracking point by minimum cost method due to different kinds of abandoned Wells.

根据不同类型报废井，按最低成本法优选取套深度和侧斜点。

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This article introduces the engineering flow and technical measures for casing side-tracking of complicated accidental Wells according to well B1 and characteristics of WZ12-1N oilfield.

文中结合涠洲12 - 1n油田特点，以B1井为背景，介绍了复杂事故井套管开窗侧钻从准备到实施的整个工艺流程和技术措施。

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This article introduces the engineering flow and technical measures for casing side-tracking of complicated accidental Wells according to well B1 and characteristics of WZ12-1N oilfield.

文中结合涠洲12 - 1n油田特点，以B1井为背景，介绍了复杂事故井套管开窗侧钻从准备到实施的整个工艺流程和技术措施。

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