Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating

Roller cone drill bits are used in drilling larger diameter wells. The drilling efficiency of the roller cone drill bit depends on the wear rate of the materials that forms bit teeth, which crushes the rock at the bottom of the well. To prevent excessive wear, research has largely focused on the stu...

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Autores principales:	Jurij Šporin, Primož Mrvar, Blaž Janc, Željko Vukelić
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	carbide coating erosion effect micro channel disintegration drilling Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/c8a0f90cc03f4614ba1ec0a8f15df9c7
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spelling	oai:doaj.org-article:c8a0f90cc03f4614ba1ec0a8f15df9c72021-11-25T17:15:51ZExpression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating10.3390/coatings111113082079-6412https://doaj.org/article/c8a0f90cc03f4614ba1ec0a8f15df9c72021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1308https://doaj.org/toc/2079-6412Roller cone drill bits are used in drilling larger diameter wells. The drilling efficiency of the roller cone drill bit depends on the wear rate of the materials that forms bit teeth, which crushes the rock at the bottom of the well. To prevent excessive wear, research has largely focused on the study and determination of abrasion-resistant materials. In our work, we investigated the wear mechanism of a roller cone drill bit whose wear-resistant teeth are protected by a hard metal coating welded onto the teeth. The difference between material properties of erosion-protective carbide coating and the tooth steel leads to uneven wear of bit teeth. In order to determine the material changes, we carried out detailed studies of the rock through which drilling was carried out, the drilling parameters and the materials of which the roller cone bit is made. The principle of wear of the tooth materials and their carbide coating, determined by our research, indicated the guidelines which could be basis for the development of abrasion-resistant materials could be carried out, as well as the problem of applying an erosion protection to the teeth of the studied type of roller cone bits.Jurij ŠporinPrimož MrvarBlaž JancŽeljko VukelićMDPI AGarticlecarbide coatingerosion effectmicro channeldisintegrationdrillingEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1308, p 1308 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbide coating erosion effect micro channel disintegration drilling Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	carbide coating erosion effect micro channel disintegration drilling Engineering (General). Civil engineering (General) TA1-2040 Jurij Šporin Primož Mrvar Blaž Janc Željko Vukelić Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating
description	Roller cone drill bits are used in drilling larger diameter wells. The drilling efficiency of the roller cone drill bit depends on the wear rate of the materials that forms bit teeth, which crushes the rock at the bottom of the well. To prevent excessive wear, research has largely focused on the study and determination of abrasion-resistant materials. In our work, we investigated the wear mechanism of a roller cone drill bit whose wear-resistant teeth are protected by a hard metal coating welded onto the teeth. The difference between material properties of erosion-protective carbide coating and the tooth steel leads to uneven wear of bit teeth. In order to determine the material changes, we carried out detailed studies of the rock through which drilling was carried out, the drilling parameters and the materials of which the roller cone bit is made. The principle of wear of the tooth materials and their carbide coating, determined by our research, indicated the guidelines which could be basis for the development of abrasion-resistant materials could be carried out, as well as the problem of applying an erosion protection to the teeth of the studied type of roller cone bits.
format	article
author	Jurij Šporin Primož Mrvar Blaž Janc Željko Vukelić
author_facet	Jurij Šporin Primož Mrvar Blaž Janc Željko Vukelić
author_sort	Jurij Šporin
title	Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating
title_short	Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating
title_full	Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating
title_fullStr	Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating
title_full_unstemmed	Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating
title_sort	expression of the self-sharpening mechanism of a roller cone bit during wear due to the influence of the erosion protection carbide coating
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c8a0f90cc03f4614ba1ec0a8f15df9c7
work_keys_str_mv	AT jurijsporin expressionoftheselfsharpeningmechanismofarollerconebitduringwearduetotheinfluenceoftheerosionprotectioncarbidecoating AT primozmrvar expressionoftheselfsharpeningmechanismofarollerconebitduringwearduetotheinfluenceoftheerosionprotectioncarbidecoating AT blazjanc expressionoftheselfsharpeningmechanismofarollerconebitduringwearduetotheinfluenceoftheerosionprotectioncarbidecoating AT zeljkovukelic expressionoftheselfsharpeningmechanismofarollerconebitduringwearduetotheinfluenceoftheerosionprotectioncarbidecoating
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Expression of the Self-Sharpening Mechanism of a Roller Cone Bit during Wear Due to the Influence of the Erosion Protection Carbide Coating

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