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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。
In order to recover its production, it was determined to drilling a directional side tracking well Wangyun 2b well inside casings.
为了恢复王云2井的生产，确定在套管内开窗定向侧钻王云2 B井。
Casing side tracking is a very important measure to save the abandoned well and improve the recovery efficient.
油层套管开窗侧钻是老油田盘活报废井、提高采收率的重要手段。
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