机械式随钻小井眼扩孔工具研制与应用

Oil Field Equipment(2015)

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Abstract
为降低侧钻小井眼钻井作业风险,提高固井质量,针对118 mm 井眼研制了一种机械式随钻扩孔工具。对比计算了传动轴结构强度,分析了切削齿布齿参数对工具破岩效率的影响,并进行了现场试验。该扩孔工具尺寸合理,结构可靠,与常规钻井工具及工艺匹配。现场使用结果证明,扩孔工具可满足套管内侧钻井随钻扩孔工艺技术要求。
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