Discussion of Prevention Measures for Bit Freezing and Burying Accidents in Deep Borehole
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P634.8

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    Abstract:

    Based on the brief conclusion on downhole accidents in coring drilling and the prevention ideas, the prevention measures for the most common bit freezing and burying accidents in deep hole drilling are mainly discussed.

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History
  • Received:September 02,2011
  • Revised:September 02,2011
  • Adopted:September 02,2011
  • Online: September 28,2011
  • Published: