Cutting tool for use in a wellbore
作者： Mark Howard Lee , Robert Stephen Beeman
DOI:
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摘要: A cutting tool (10) for use in a wellbore to cut into its wall has body (40, 50) disposable at desired location the wellbore, least one first blade (70) pivotally mounted on location, second (60) spaced axially from blades being movable retracted position against and an operating extending body, shorter length than blades.
lens.org 参考文章(6)
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