Abrasiveness evaluation of rock–cone bit based on fractured cuttings

Abstract This paper looks at the influence of the sorting coefficient, average particle size and quartz content on the abrasion rate of the cone bit. This paper uses rock drillability experiments, particle sizing tests and XRD mineral component analyses as methodology. The results show that the larg...

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Main Authors: Changhao Wang, Shibin Li
Format: Article
Language:English
Published: SpringerOpen 2019-04-01
Series:Journal of Petroleum Exploration and Production Technology
Subjects:
Online Access:http://link.springer.com/article/10.1007/s13202-019-0654-5
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author Changhao Wang
Shibin Li
author_facet Changhao Wang
Shibin Li
author_sort Changhao Wang
collection DOAJ
description Abstract This paper looks at the influence of the sorting coefficient, average particle size and quartz content on the abrasion rate of the cone bit. This paper uses rock drillability experiments, particle sizing tests and XRD mineral component analyses as methodology. The results show that the larger the average particle size and sorting coefficient, the smaller the real contact area between the bit and the rock surface, the smaller the friction force. Meanwhile, the volume of the fractured cuttings increased. The results also show that the less the quartz content, the less hard points in the rock. All these factors lead to the reduction in drill bit damage. Because of the strong correlation among the factors of abrasiveness, this paper develops a model of the drill bit abrasion using the partial least square method. The main factors of the model are the grain size distribution and the quartz content of the rock. This model can also be used in the selection of drill bit type and the classification of rock abrasion.
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spelling doaj.art-9e4ecb2dc5f54786a43f841cc1bda02f2022-12-22T02:02:20ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662019-04-01942729273610.1007/s13202-019-0654-5Abrasiveness evaluation of rock–cone bit based on fractured cuttingsChanghao Wang0Shibin Li1Key Laboratory of Enhanced Oil Recovery, Ministry of Education, Northeast Petroleum UniversityKey Laboratory of Enhanced Oil Recovery, Ministry of Education, Northeast Petroleum UniversityAbstract This paper looks at the influence of the sorting coefficient, average particle size and quartz content on the abrasion rate of the cone bit. This paper uses rock drillability experiments, particle sizing tests and XRD mineral component analyses as methodology. The results show that the larger the average particle size and sorting coefficient, the smaller the real contact area between the bit and the rock surface, the smaller the friction force. Meanwhile, the volume of the fractured cuttings increased. The results also show that the less the quartz content, the less hard points in the rock. All these factors lead to the reduction in drill bit damage. Because of the strong correlation among the factors of abrasiveness, this paper develops a model of the drill bit abrasion using the partial least square method. The main factors of the model are the grain size distribution and the quartz content of the rock. This model can also be used in the selection of drill bit type and the classification of rock abrasion.http://link.springer.com/article/10.1007/s13202-019-0654-5Drill damageAbrasionAverage particle sizeSorting coefficientPartial least squares regression
spellingShingle Changhao Wang
Shibin Li
Abrasiveness evaluation of rock–cone bit based on fractured cuttings
Journal of Petroleum Exploration and Production Technology
Drill damage
Abrasion
Average particle size
Sorting coefficient
Partial least squares regression
title Abrasiveness evaluation of rock–cone bit based on fractured cuttings
title_full Abrasiveness evaluation of rock–cone bit based on fractured cuttings
title_fullStr Abrasiveness evaluation of rock–cone bit based on fractured cuttings
title_full_unstemmed Abrasiveness evaluation of rock–cone bit based on fractured cuttings
title_short Abrasiveness evaluation of rock–cone bit based on fractured cuttings
title_sort abrasiveness evaluation of rock cone bit based on fractured cuttings
topic Drill damage
Abrasion
Average particle size
Sorting coefficient
Partial least squares regression
url http://link.springer.com/article/10.1007/s13202-019-0654-5
work_keys_str_mv AT changhaowang abrasivenessevaluationofrockconebitbasedonfracturedcuttings
AT shibinli abrasivenessevaluationofrockconebitbasedonfracturedcuttings