Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit

Wang Bin; Guan Zhichuan; Hu Huaigang; Pan Rui

doi:doi:10.11648/j.sd.20190702.17

| Peer-Reviewed

Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit

Wang Bin, Guan Zhichuan, Hu Huaigang, Pan Rui

Published in Science Discovery (Volume 7, Issue 2)

Received: 8 April 2019 Published: 23 May 2019

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

This paper proposes a two-stage PDC bit that can actively release the formation pressure in advance to improve the rock breaking efficiency, and provides a new solution for effectively improving the rock breaking efficiency of the deep hard formation. The red sandstone drilling comparison experiment under the same drilling parameters of the two-stage PDC bit and the conventional PDC bit is carried out. The experimental results show that the two-stage PDC bit can effectively improve the rock breaking efficiency under the same conditions and compare with the conventional PDC bit. The speed increase efficiency can be up to 90%; the use of two-stage drill can greatly reduce the rock breaking torque during the drilling process. Under the same working conditions, the double-stage PDC bit can reduce the rock breaking torque by up to 30%, and the two-stage The mechanical specific energy of the drill bit is generally lower than the mechanical specific energy of the conventional drill bit, and the relative reduction of the mechanical specific energy under the same conditions is between 5% and 25%. And effectively reduce the ineffective vibration of the drill bit, thereby achieving the purpose of protecting the drill bit and increasing the life of the combination of the drill bit and the bottom drill.

Published in	Science Discovery (Volume 7, Issue 2)
DOI	10.11648/j.sd.20190702.17
Page(s)	92-97
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

The Two Stage PDC Bit, Rate of Penetration, Rock Breaking Torque, Mechanical Specific Energy, Bit Vibration

References

[1]	我国油气资源勘探开发潜力较大[N],中国国土资源报,2015-05-07(006)。
[2]	左汝强,国际油气井钻头进展概述(一)——Kymera组合式(Hybrid)钻头系列[J],探矿工程(岩土钻掘工程),2016,(01):4-6。
[3]	彭烨,沈忠厚,樊胜华.基于开挖方法的井底应力场有限元模型[J],石油学报,2006,(06):133-136+140。
[4]	彭烨,双级PDC钻头的理论及试验研究[D],中国石油大学,2008:33-58。
[5]	李诚铭,杨红伟,孙金凤,等,新编石油钻井工程实用技术手册[J].中国知识出版社,2006:485。
[6]	李田军.,PDC钻头破碎岩石的力学分析与机理研究[D],中国地质大学,2012。
[7]	T. M. Warren, M. B. Smith, Bottomhole stress factors affecting drilling rate at depth, SPE-13381-PA, 1985.
[8]	Azar, Slim Hbaieb. Michael, Hybrid. bit improves drilling efficiency. in Brazil’s pre-salt formations [J], World Oil, 2013: 4-7.
[9]	孙辉,郭俊磊,李隆承,关于PDC钻头破岩效率的研究[J],中国新技术新产品,2012,(16):141。
[10]	张光辉,PDC钻头破岩机理及围岩状态识别技术研究[D],中国矿业大学,2015。
[11]	R. Teale. The concept of specific energy in rock drilling[J]. International Journal of Rock Mechanics & Mining Sciences & Geomechanics Abstracts, 1965, 2 (1): 57-73.

Cite This Article

Plain Text BibTeX RIS

APA Style

Wang Bin, Guan Zhichuan, Hu Huaigang, Pan Rui. (2019). Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit. Science Discovery, 7(2), 92-97. https://doi.org/10.11648/j.sd.20190702.17

Copy | Download

ACS Style

Wang Bin; Guan Zhichuan; Hu Huaigang; Pan Rui. Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit. Sci. Discov. 2019, 7(2), 92-97. doi: 10.11648/j.sd.20190702.17

Copy | Download

AMA Style

Wang Bin, Guan Zhichuan, Hu Huaigang, Pan Rui. Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit. Sci Discov. 2019;7(2):92-97. doi: 10.11648/j.sd.20190702.17

Copy | Download

@article{10.11648/j.sd.20190702.17,
  author = {Wang Bin and Guan Zhichuan and Hu Huaigang and Pan Rui},
  title = {Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit},
  journal = {Science Discovery},
  volume = {7},
  number = {2},
  pages = {92-97},
  doi = {10.11648/j.sd.20190702.17},
  url = {https://doi.org/10.11648/j.sd.20190702.17},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20190702.17},
  abstract = {This paper proposes a two-stage PDC bit that can actively release the formation pressure in advance to improve the rock breaking efficiency, and provides a new solution for effectively improving the rock breaking efficiency of the deep hard formation. The red sandstone drilling comparison experiment under the same drilling parameters of the two-stage PDC bit and the conventional PDC bit is carried out. The experimental results show that the two-stage PDC bit can effectively improve the rock breaking efficiency under the same conditions and compare with the conventional PDC bit. The speed increase efficiency can be up to 90%; the use of two-stage drill can greatly reduce the rock breaking torque during the drilling process. Under the same working conditions, the double-stage PDC bit can reduce the rock breaking torque by up to 30%, and the two-stage The mechanical specific energy of the drill bit is generally lower than the mechanical specific energy of the conventional drill bit, and the relative reduction of the mechanical specific energy under the same conditions is between 5% and 25%. And effectively reduce the ineffective vibration of the drill bit, thereby achieving the purpose of protecting the drill bit and increasing the life of the combination of the drill bit and the bottom drill.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit
AU  - Wang Bin
AU  - Guan Zhichuan
AU  - Hu Huaigang
AU  - Pan Rui
Y1  - 2019/05/23
PY  - 2019
N1  - https://doi.org/10.11648/j.sd.20190702.17
DO  - 10.11648/j.sd.20190702.17
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 92
EP  - 97
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20190702.17
AB  - This paper proposes a two-stage PDC bit that can actively release the formation pressure in advance to improve the rock breaking efficiency, and provides a new solution for effectively improving the rock breaking efficiency of the deep hard formation. The red sandstone drilling comparison experiment under the same drilling parameters of the two-stage PDC bit and the conventional PDC bit is carried out. The experimental results show that the two-stage PDC bit can effectively improve the rock breaking efficiency under the same conditions and compare with the conventional PDC bit. The speed increase efficiency can be up to 90%; the use of two-stage drill can greatly reduce the rock breaking torque during the drilling process. Under the same working conditions, the double-stage PDC bit can reduce the rock breaking torque by up to 30%, and the two-stage The mechanical specific energy of the drill bit is generally lower than the mechanical specific energy of the conventional drill bit, and the relative reduction of the mechanical specific energy under the same conditions is between 5% and 25%. And effectively reduce the ineffective vibration of the drill bit, thereby achieving the purpose of protecting the drill bit and increasing the life of the combination of the drill bit and the bottom drill.
VL  - 7
IS  - 2
ER  -

Copy | Download

Author Information

Wang Bin

School of Petroleum Engineering, China University of Petroleum, Qingdao, China
Guan Zhichuan

School of Petroleum Engineering, China University of Petroleum, Qingdao, China
Hu Huaigang

School of Petroleum Engineering, China University of Petroleum, Qingdao, China
Pan Rui

School of Petroleum Engineering, China University of Petroleum, Qingdao, China

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Wang Bin, Guan Zhichuan, Hu Huaigang, Pan Rui. (2019). Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit. Science Discovery, 7(2), 92-97. https://doi.org/10.11648/j.sd.20190702.17

Copy | Download

ACS Style

Wang Bin; Guan Zhichuan; Hu Huaigang; Pan Rui. Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit. Sci. Discov. 2019, 7(2), 92-97. doi: 10.11648/j.sd.20190702.17

Copy | Download

AMA Style

Wang Bin, Guan Zhichuan, Hu Huaigang, Pan Rui. Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit. Sci Discov. 2019;7(2):92-97. doi: 10.11648/j.sd.20190702.17

Copy | Download

@article{10.11648/j.sd.20190702.17,
  author = {Wang Bin and Guan Zhichuan and Hu Huaigang and Pan Rui},
  title = {Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit},
  journal = {Science Discovery},
  volume = {7},
  number = {2},
  pages = {92-97},
  doi = {10.11648/j.sd.20190702.17},
  url = {https://doi.org/10.11648/j.sd.20190702.17},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20190702.17},
  abstract = {This paper proposes a two-stage PDC bit that can actively release the formation pressure in advance to improve the rock breaking efficiency, and provides a new solution for effectively improving the rock breaking efficiency of the deep hard formation. The red sandstone drilling comparison experiment under the same drilling parameters of the two-stage PDC bit and the conventional PDC bit is carried out. The experimental results show that the two-stage PDC bit can effectively improve the rock breaking efficiency under the same conditions and compare with the conventional PDC bit. The speed increase efficiency can be up to 90%; the use of two-stage drill can greatly reduce the rock breaking torque during the drilling process. Under the same working conditions, the double-stage PDC bit can reduce the rock breaking torque by up to 30%, and the two-stage The mechanical specific energy of the drill bit is generally lower than the mechanical specific energy of the conventional drill bit, and the relative reduction of the mechanical specific energy under the same conditions is between 5% and 25%. And effectively reduce the ineffective vibration of the drill bit, thereby achieving the purpose of protecting the drill bit and increasing the life of the combination of the drill bit and the bottom drill.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Experimental Study on Rock Fragmentation Efficiency of Two Stage PDC Bit
AU  - Wang Bin
AU  - Guan Zhichuan
AU  - Hu Huaigang
AU  - Pan Rui
Y1  - 2019/05/23
PY  - 2019
N1  - https://doi.org/10.11648/j.sd.20190702.17
DO  - 10.11648/j.sd.20190702.17
T2  - Science Discovery
JF  - Science Discovery
JO  - Science Discovery
SP  - 92
EP  - 97
PB  - Science Publishing Group
SN  - 2331-0650
UR  - https://doi.org/10.11648/j.sd.20190702.17
AB  - This paper proposes a two-stage PDC bit that can actively release the formation pressure in advance to improve the rock breaking efficiency, and provides a new solution for effectively improving the rock breaking efficiency of the deep hard formation. The red sandstone drilling comparison experiment under the same drilling parameters of the two-stage PDC bit and the conventional PDC bit is carried out. The experimental results show that the two-stage PDC bit can effectively improve the rock breaking efficiency under the same conditions and compare with the conventional PDC bit. The speed increase efficiency can be up to 90%; the use of two-stage drill can greatly reduce the rock breaking torque during the drilling process. Under the same working conditions, the double-stage PDC bit can reduce the rock breaking torque by up to 30%, and the two-stage The mechanical specific energy of the drill bit is generally lower than the mechanical specific energy of the conventional drill bit, and the relative reduction of the mechanical specific energy under the same conditions is between 5% and 25%. And effectively reduce the ineffective vibration of the drill bit, thereby achieving the purpose of protecting the drill bit and increasing the life of the combination of the drill bit and the bottom drill.
VL  - 7
IS  - 2
ER  -

Copy | Download