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casing milling
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casing milling
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修复油井套管
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casing milling
套管磨铣
对套管由于射孔、腐蚀破坏后产生的毛刺或卷边,采用套管刮削器或梨形磨鞋等工具进行磨铣修理,恢复其内通径要求尺寸的作业。
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Department for History of Science and Technology,University of Chinese Academy of Sciences
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