Application of the portable full hydraulic drill in geological drilling in the Qinling region

LIU Bei; ZHANG Chen; YANG Ke; Lü Xuan and LI Qiang; ${author.authorNameEn}

doi:10.12143/j.ztgc.2021.11.014

2021 Vol. 48, No. 11

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LIU Bei, ZHANG Chen, YANG Ke, Lü Xuan and LI Qiang, . 2021. Application of the portable full hydraulic drill in geological drilling in the Qinling region. DRILLING ENGINEERING, 48(11): 94-103. doi: 10.12143/j.ztgc.2021.11.014

Citation:

LIU Bei, ZHANG Chen, YANG Ke, Lü Xuan and LI Qiang, . 2021. Application of the portable full hydraulic drill in geological drilling in the Qinling region. DRILLING ENGINEERING, 48(11): 94-103. doi: 10.12143/j.ztgc.2021.11.014

Application of the portable full hydraulic drill in geological drilling in the Qinling region

1. Xi’an Mineral Resources Research Center of China Geological Survey, Xi’an Shaanxi 710100， China;
2. Unitalen Attorneys at Law， Xi’an Shaanxi 710100, China

Received Date: 10 March 2021

Revised Date: 12 April 2021

Abstract

Abstract

This article introduces the application of the portable full hydraulic drill in solid mineral geological drilling in the Qinling region， briefly describes the basic data and the drilling process of EP600 series drills， and analyzes the relationship between rock drillability and drilling efficiency with respect to 11 holes in different work areas. In view of drilling efficiency， power loss， drilling capability and the like of the drilling rig， good test results have been initially achieved by the proper selection （improvement） of the drill bit， the reduction of internal friction resistance within the drill string passage， and the adoption of light high-strength drill pipes and other effective measures or suggestions. The applicable conditions and advantages of the portable full hydraulic drill are presented， including high drilling efficiency in shallow holes （hole depth less than 350m） in rock with drillability level Ⅶ， convenient movement， fast assembly， less environmental damage in complex terrain environments， and it meets the requirements of the ecological environment protection policy and green exploration work with the overall economic drilling cost significantly reduced. For the unresolved problems， proper work suggestions are given， which provide positive guidance and reference for further exploiting the performance of the portable full hydraulic drill.
- portable full hydraulic drill /
- green exploration /
- geological drilling /
- drilling parameters /
- wire-line core drilling /
- Qinling region

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References

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