Bibliographic citations
Ascate, H., (2024). Influencia de presión de percusión y rotación en rendimiento de aceros de perforación en roca arenisca y granodiorita, Contrata Minera Cristobal [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/22322
Ascate, H., Influencia de presión de percusión y rotación en rendimiento de aceros de perforación en roca arenisca y granodiorita, Contrata Minera Cristobal []. PE: Universidad Nacional de Trujillo; 2024. https://hdl.handle.net/20.500.14414/22322
@misc{renati/879997,
title = "Influencia de presión de percusión y rotación en rendimiento de aceros de perforación en roca arenisca y granodiorita, Contrata Minera Cristobal",
author = "Ascate Anampa, Hermitanio",
publisher = "Universidad Nacional de Trujillo",
year = "2024"
}
The primary objective of the research was to evaluate the influence of percussion and rotation pressure on the performance of drilling steels in sandstone and granodiorite rocks at the Contrata Minera Cristobal. The study adopted an applied experimental design, selecting Contrata Minera Cristobal E.I.R.L. as the sample. For hypothesis testing, the non-parametric Mann-Whitney test was performed, yielding a p-value of 2.71e-06 (p<0.05). The results indicated that drilling in sandstone (face drilling) was conducted with an HC50 male shank adapter, a 12-foot rod, and an R32x45 mm bit, while in granodiorite (support drilling), it was conducted with an HC50 female shank adapter, an-8-foot rod, and an R28x38 mm bit. Additionally, in granodiorite, with percussion and rotation pressures of 130 and 60 bars, respectively, wear and efficiency were higher compared to sandstone, which used average pressures of 80 and 35 bars. In granodiorite, the bit body wear was 3.7 mm, and the insert wear was 2.4 mm, with a drilling efficiency of 2.31 m/min. In sandstone, the bit body wear was 2.45 mm, and the insert wear was 1.15 mm, with a drilling efficiency of 1.92 m/min. Drilling steels performed better in sandstone compared to granodiorite. Additionally, the total drilling cost was lower in sandstone (0.35 US$/m) compared to granodiorite (0.40 US$/m). Finally, it was concluded that percussion and rotation pressure significantly influence the performance of drilling steels. An increase of 1 bar in percussion and rotation pressure increases the wear of drilling steels and improves their drilling performance.
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