Effect of grain size and grain content on the hardness and drillability of rocks

It is well-known that the characteristics of hardness and drillability are influenced by microstructure of rock. In this study, rock properties were analyzed on grain size and grain content. Coarse-grain and fine-grain sandstones were tested under successive indentation condition. Eighteen groups of...

Full description

Bibliographic Details
Main Authors:	Mou Yang, Yingfeng-Meng, Gao Li, Lin Han, Yufei-Li
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2014
Online Access:	http://journalarticle.ukm.my/6818/ http://journalarticle.ukm.my/6818/ http://journalarticle.ukm.my/6818/1/10_Mou_Yang.pdf

id	ukm-6818
recordtype	eprints
spelling	ukm-68182016-12-14T06:42:17Z http://journalarticle.ukm.my/6818/ Effect of grain size and grain content on the hardness and drillability of rocks Mou Yang, Yingfeng-Meng, Gao Li, Lin Han, Yufei-Li, It is well-known that the characteristics of hardness and drillability are influenced by microstructure of rock. In this study, rock properties were analyzed on grain size and grain content. Coarse-grain and fine-grain sandstones were tested under successive indentation condition. Eighteen groups of sandstone and shale were employed for the drillability test. Indentation tests results showed that grain size influenced the low point of residual hardness, the crushing depth and volume and grain content influenced the peak point of hardness. The drillability values of shale increased with increasing contents of clay and quartz. Meanwhile, drillability values of sandstone increased with increasing content of quartz, but decreased with increasing content of clay. Therefore, these preliminary studies show great potential applications for selecting suitable bit type and formulating drilling program as a function of rock microstructure and crushing rock method for bit in the oil drilling. Universiti Kebangsaan Malaysia 2014-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6818/1/10_Mou_Yang.pdf Mou Yang, and Yingfeng-Meng, and Gao Li, and Lin Han, and Yufei-Li, (2014) Effect of grain size and grain content on the hardness and drillability of rocks. Sains Malaysiana, 43 (1). pp. 81-87. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	It is well-known that the characteristics of hardness and drillability are influenced by microstructure of rock. In this study, rock properties were analyzed on grain size and grain content. Coarse-grain and fine-grain sandstones were tested under successive indentation condition. Eighteen groups of sandstone and shale were employed for the drillability test. Indentation tests results showed that grain size influenced the low point of residual hardness, the crushing depth and volume and grain content influenced the peak point of hardness. The drillability values of shale increased with increasing contents of clay and quartz. Meanwhile, drillability values of sandstone increased with increasing content of quartz, but decreased with increasing content of clay. Therefore, these preliminary studies show great potential applications for selecting suitable bit type and formulating drilling program as a function of rock microstructure and crushing rock method for bit in the oil drilling.
format	Article
author	Mou Yang, Yingfeng-Meng, Gao Li, Lin Han, Yufei-Li,
spellingShingle	Mou Yang, Yingfeng-Meng, Gao Li, Lin Han, Yufei-Li, Effect of grain size and grain content on the hardness and drillability of rocks
author_facet	Mou Yang, Yingfeng-Meng, Gao Li, Lin Han, Yufei-Li,
author_sort	Mou Yang,
title	Effect of grain size and grain content on the hardness and drillability of rocks
title_short	Effect of grain size and grain content on the hardness and drillability of rocks
title_full	Effect of grain size and grain content on the hardness and drillability of rocks
title_fullStr	Effect of grain size and grain content on the hardness and drillability of rocks
title_full_unstemmed	Effect of grain size and grain content on the hardness and drillability of rocks
title_sort	effect of grain size and grain content on the hardness and drillability of rocks
publisher	Universiti Kebangsaan Malaysia
publishDate	2014
url	http://journalarticle.ukm.my/6818/ http://journalarticle.ukm.my/6818/ http://journalarticle.ukm.my/6818/1/10_Mou_Yang.pdf
first_indexed	2023-09-18T19:47:58Z
last_indexed	2023-09-18T19:47:58Z
_version_	1777406028240912384

Effect of grain size and grain content on the hardness and drillability of rocks

Similar Items