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Modern Mining ›› 2016, Vol. 32 ›› Issue (09): 242-244.

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Development of a Multiple Groove Helix Drilling Rod

Tang Dayong1,2 ，Mei Anping1,2 ，Lei Wannian1,2 ，Sun Dai1,2    

  1. 1.China Coal Science and Industry Group Chongqing Research Institute；2.National Key Laboratory of Gas Disaster Monitoring and Emergency Technology
  • Online:2016-09-20 Published:2016-11-14

Abstract: Taking the multiple groove helix drilling rod as the study example,the development process of drilling rod is analyzed in detail,the slagging discharging mechanism of multiple groove helix drilling rod is analyzed,the strength calculate and check method of the multiple groove helix drilling rod is discussed.The groove structure and processing technique of the joint are improved by conducting the site industrial test,the reliability of the drilling rod is improved.

Key words: Multiple groove helix drilling rod, Slagging mechanism, Drilling technique, Industrial test, Structure design