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Application of the New On-off Type Drill Bit for the Combination of Dry Auger Drilling and Screen Pipe Completion Technology
[J]. COAL ENGINEERING, 2019, 51(2): 141-144.
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Design and Application of PDC Bit for Major Diameter Directional Long Drilling Hole
[J]. COAL ENGINEERING, 2018, 50(5): 150-152.
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Design and application of the new three-wingedon-off type PDC drill bit
[J]. COAL ENGINEERING, 2017, 49(6): 132-134.
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Design and Application on Torque Device of Strong Outburst Seam Drilling with Casing
[J]. COAL ENGINEERING, 2016, 48(5): 129-131.
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| [5] |
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Snake Bone Drill Pipe Design and Application
[J]. COAL ENGINEERING, 2015, 47(11): 81-82.
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| [6] |
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Development and Application of Drag PDC Bit Used for Directional Drilling in Coal Mine Underground
[J]. COAL ENGINEERING, 2015, 47(9): 135-136.
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Design and application of the PDC straight flute anchor drill bit
[J]. COAL ENGINEERING, 2014, 46(12): 129-130.
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