An experimental investigation into the borehole drilling and strata characteristics.

Measurement while drilling is an important part of the intelligent development of coal mines. The main purpose of this paper is to comprehensively analyze the response characteristics of borehole drilling parameters and find a better method to predict rock mechanical properties based on drilling par...

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Autores principales:	Cancan Liu, Xigui Zheng, Niaz Muhammad Shahani, Peng Li, Cong Wang, Xiaowei Guo
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f365550be275420cbca7a9c652f50711
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spelling	oai:doaj.org-article:f365550be275420cbca7a9c652f507112021-12-02T20:09:06ZAn experimental investigation into the borehole drilling and strata characteristics.1932-620310.1371/journal.pone.0253663https://doaj.org/article/f365550be275420cbca7a9c652f507112021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253663https://doaj.org/toc/1932-6203Measurement while drilling is an important part of the intelligent development of coal mines. The main purpose of this paper is to comprehensively analyze the response characteristics of borehole drilling parameters and find a better method to predict rock mechanical properties based on drilling parameters. Firstly, six concrete blocks and multiple specimens were prepared with different material ratios. Next, the concrete specimens were tested for mechanical properties in the laboratory. Meanwhile, the displacement, rotation speed, torque, and sound pressure level (SPL) were observed during the drilling of the concrete blocks. Finally, the response characteristics of drilling parameters such as rotation speed, rate of penetration (ROP), torque, and SPL were analyzed. Besides, multiple prediction models of rock mechanical parameters were obtained by data analysis. The research results indicate that the drilling process can be classified into the initial stage of drilling (fast speed) and the steady stage of drilling (slow speed). The torque work ratio accounts for more than 99%, which increases with the increase in rock strength. The penetration depth per revolution and torque work ratio are significantly related to rock uniaxial compressive strength, Brazilian tensile strength, cohesion, and elastic modulus. The ROP is the best choice for estimating rock mechanical parameters. This research provides an important reference for laboratory rock mechanics parameter testing and geological features detection based on drilling parameters.Cancan LiuXigui ZhengNiaz Muhammad ShahaniPeng LiCong WangXiaowei GuoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0253663 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Cancan Liu Xigui Zheng Niaz Muhammad Shahani Peng Li Cong Wang Xiaowei Guo An experimental investigation into the borehole drilling and strata characteristics.
description	Measurement while drilling is an important part of the intelligent development of coal mines. The main purpose of this paper is to comprehensively analyze the response characteristics of borehole drilling parameters and find a better method to predict rock mechanical properties based on drilling parameters. Firstly, six concrete blocks and multiple specimens were prepared with different material ratios. Next, the concrete specimens were tested for mechanical properties in the laboratory. Meanwhile, the displacement, rotation speed, torque, and sound pressure level (SPL) were observed during the drilling of the concrete blocks. Finally, the response characteristics of drilling parameters such as rotation speed, rate of penetration (ROP), torque, and SPL were analyzed. Besides, multiple prediction models of rock mechanical parameters were obtained by data analysis. The research results indicate that the drilling process can be classified into the initial stage of drilling (fast speed) and the steady stage of drilling (slow speed). The torque work ratio accounts for more than 99%, which increases with the increase in rock strength. The penetration depth per revolution and torque work ratio are significantly related to rock uniaxial compressive strength, Brazilian tensile strength, cohesion, and elastic modulus. The ROP is the best choice for estimating rock mechanical parameters. This research provides an important reference for laboratory rock mechanics parameter testing and geological features detection based on drilling parameters.
format	article
author	Cancan Liu Xigui Zheng Niaz Muhammad Shahani Peng Li Cong Wang Xiaowei Guo
author_facet	Cancan Liu Xigui Zheng Niaz Muhammad Shahani Peng Li Cong Wang Xiaowei Guo
author_sort	Cancan Liu
title	An experimental investigation into the borehole drilling and strata characteristics.
title_short	An experimental investigation into the borehole drilling and strata characteristics.
title_full	An experimental investigation into the borehole drilling and strata characteristics.
title_fullStr	An experimental investigation into the borehole drilling and strata characteristics.
title_full_unstemmed	An experimental investigation into the borehole drilling and strata characteristics.
title_sort	experimental investigation into the borehole drilling and strata characteristics.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/f365550be275420cbca7a9c652f50711
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An experimental investigation into the borehole drilling and strata characteristics.

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