Casing sidetracking 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。
2
In order to recover its production, it was determined to drilling a directional sidetracking 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。
3
On the base of that, the matching construction of the ocean workover rig for sidetracking was discussed. This provided a new way for the slim hole drilling.