Application of Lengthening Coring Barrel of SYZX75 Wire-line Coring Hydrohammer
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P634.4

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    Abstract:

    The paper mainly introduced the application effect and experience of lengthening coring barrel of SYZX75 wire-line coring hydro-hammer in fractured rock layer.

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History
  • Received:January 19,2009
  • Revised:January 19,2009
  • Adopted:January 22,2009
  • Online: May 27,2009
  • Published: February 25,2009