Large-water-hole light workover drill rod
The invention belongs to the technical field of drilling tools, and particularly relates to a large-water-hole light workover drill rod. The large-water-hole light workover drill rod aims to solve the problem that in the prior art, the mechanical strength of a drill rod is insufficient. The large-wa...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention belongs to the technical field of drilling tools, and particularly relates to a large-water-hole light workover drill rod. The large-water-hole light workover drill rod aims to solve the problem that in the prior art, the mechanical strength of a drill rod is insufficient. The large-water-hole light workover drill rod comprises a drill rod body, a first drill rod connector and a second drill rod connector, wherein the first drill rod connector and the second drill rod connector are arranged at the two ends of the drill rod body respectively; the outer diameter of the drill rod body is set to be 100mm-103mm, and the outer diameter of the first drill rod connector and the outer diameter of the second drill rod connector are set to be 130mm-143 mm; and the inner diameter of the drill rod body is set to be 81mm-86mm, and the inner diameter of the first drill rod connector and the inner diameter of the second drill rod connector are set to be 81mm-85mm. The large-water-hole light workover drill rod i |
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