Structural optimization and simulation analysis of high reliability wire-line coring drilling tools for submarine drilling rigs

Authors

WANG Jialiang, National Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technol-ogy, Hunan University of Science and Technology, Xiangtan 411201, China; School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
PENG Fenfei, National Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technol-ogy, Hunan University of Science and Technology, Xiangtan 411201, China; School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaFollow
WAN Buyan, National Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technol-ogy, Hunan University of Science and Technology, Xiangtan 411201, China; School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
ZHOU Yun, State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

Abstract

In order to improve the working reliability of wire-line coring drilling tools used in submarine drilling rigs, based on the particularity of submarine environment, from the aspect of improvement of the single action performance of the single action mechanism and the working reliability of the suspension mechanism, the structural optimization of the single action mechanism was carried out, the numerical simulation analysis of the suspension mechanism was conducted by using ABAQUS simulation. The results show that the improved bearing assembly structure can restrain sea water corrosion, improve the centering effect of arbor and enhance the flexibility of bearing assembly. The improved suspension mechanism can reduce the risk of plastic deformation of key parts used frequently, enhance the working reliability of suspension mechanism. This research results can provide theoretical foundation for related drilling tool design.

Keywords

offshore exploration, wire-line coring, suspension mechanism, coring drilling tools, diamond drilling, ABAQUS simulation

DOI

10.3969/j.issn.1001-1986.2019.04.031

Recommended Citation

WANG Jialiang, PENG Fenfei, WAN Buyan, et al. (2019) "Structural optimization and simulation analysis of high reliability wire-line coring drilling tools for submarine drilling rigs," Coal Geology & Exploration: Vol. 47: Iss. 4, Article 32.
DOI: 10.3969/j.issn.1001-1986.2019.04.031
Available at: https://cge.researchcommons.org/journal/vol47/iss4/32

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