The well track of Tasheng well 1 after sidetracking causes the coring tools transverse vibration, thereby destroy the coring yld.

• 塔深1井是亚洲最深的科学探索井,该井侧钻饶障后造成的井眼轨迹易使取心工具产生横向震动,对岩心起破坏作用;