套管开窗侧钻技术是复活死井、报废井的有效方法。
The technology of casing well sidetracking is an effective way to restore dead well and abandoned well.
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。
Casing side tracking is a very important measure to save the abandoned well and improve the recovery efficient.
套管开窗是分支井作业的关键步骤，开窗质量对后续工具的下入至关重要。
Casing opening is the key procedure in multilateral operations. Opening quality is quite important for subsequent tools to enter into the laterals.
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