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我公司1992年4月～1996年4月累计打侧钻井160口，报废3in钻具1500m，2in钻具2000m，直接经济损失140万余元。造成钻具报废的主要原因是裸眼段钻具严重磨损和粘卡不能全部捞获所致，下面仅以实例对钻具磨损及粘卡进行分析。1钻具磨损分析1．1洼79并概况并身结构：表层套管φ339
Our company from April 1992 to April 1996 cumulative side drilling 160, scrap 3in drill 1500m, 2in drill 2000m, the direct economic loss of 1.4 million yuan. The main reason that caused the tool to be scrapped is that the naked eye section drill rig is severely worn and the sticky card can not be fully recovered. The following only uses examples to analyze the tool wear and sticky card. 1 drill wear analysis 1.1 depression 79 and the general structure and body: surface casing φ339