Experiment Study on Parameter Optimization of Diamond Impregnated Bit for Abrasive and Hard Formation

DOI

10.2991/iccet-15.2015.315How to use a DOI?

Keywords

Abrasive and hard formation; Diamond impregnated bit; Parameter optimization; Polycrystalline diamond grain size; Polycrystalline diamond concentration; Bit matrix formula.

Abstract

Compared with PDC bit, diamond impregnated bit have advantages in strong abrasive and hard formation according to theoretical research and field pilot experience. But the design and parameter optimization of diamond impregnated bit for different kinds of formations haven’t been done until now, and this block its application in oilfield. The influence of bit matrix formula, polycrystalline diamond grain size and concentration on rock-breaking efficiency and bit service life were investigated based on drilling experiments. The optimized matrix formula of diamond impregnated bit for drilling in quartz sandstone formation and granite formation were obtained separately according to the experiment result. It also can be observed that with the increase of the polycrystalline diamond grain size and concentration, the drill speed of the diamond impregnated bit increase and then decrease, while the wear loss keep decrease. 80 is the critical mesh for polycrystalline diamond grain size which can let the bit keep high drill speed and ensure its service life. The optimization result for polycrystalline diamond concentration is 20% for quartz sandstone and granite formations. The influence of diamond impregnated bit parameters on drilling performance was studied and the optimized parameter values were obtained for the two kinds of strong abrasive and hard formations of quartz sandstone and granite. The research result can used to select and design diamond impregnated bits for different kinds of formations, and then improve the drill performance and enhance its application.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jun Yuan
AU  - Deyong Zou
AU  - Hongjiao Zhong
PY  - 2015/11
DA  - 2015/11
TI  - Experiment Study on Parameter Optimization of Diamond Impregnated Bit for Abrasive and Hard Formation
BT  - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015
PB  - Atlantis Press
SP  - 1689
EP  - 1695
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccet-15.2015.315
DO  - 10.2991/iccet-15.2015.315
ID  - Yuan2015/11
ER  -