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牙轮钻头软打捞工具的研制与应用

China New Technologies and New Products(2019)

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Abstract
该文针对牙轮钻头落在井内套管头及以上井口装置上,从井口可以观察到落井牙轮钻头的状态且公扣朝上的情况,结合案例,介绍一种现场牙轮钻头软打捞工具的研制和钻头打捞方法.制作打捞工具的材料在钻井现场可就地取材,工具加工要求技术简单,软打捞工艺简单又便于操作,成功打捞落井钻头的概率大,不会对钻头造成任何的损坏.
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