Evaluating the Wear of Polycrystalline Diamond Compact Drill Bit Cutters using Indentation and Scratch Tests

Keywords: Terms-Bit wear, Indentation, Micro-scratch test, Nano-scratch test, Polycrystalline diamond compact


Abstract–Polycrystalline diamond compact (PDC) drill bits are widely used in oil and gas drilling. The wear of PDC cutters is a major problem during drilling. It leads to severe time losses which affect the overall drilling operation cost. Therefore, it is essential to evaluate the wear tendency for these cutters using predictive approaches. The present research is focused on studying the wear mechanisms of PDC cutters and the effect of their mechanical properties on the extent of wear. The volume of wear for the PDC cutters was determined experimentally using micro- and nano-scratch tests by implementing an approach based on the geometry of the removed material after micro- and nano-scratch tests. The experimental wear results were compared to the predictions from current models in the literature.Various wear models are evaluated for micro- and nano-scratch tests on both layers of the PDC samples. The study shows that the wear of the PDC cutters can be predicted from the material mechanical properties, applied load, sliding distance, and hardness of the PDC cutters. The study could be extended for the evaluation of wear intensity of PDC cutters from various manufactures without using the previous techniques of abrasion testing.


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Author Biographies

Rafid K. Abbas, Department of Chemical Engineering, Faculty of Engineering, University of Al-Qadisiyah, Al-Diwaniya

Dr. Abbas is an Assistant professor in petroleum engineering at the Department of Chemical Engineering, Faculty of Engineering, University of Al-Qadisiyah, Al-Diwaniya, Iraq. Dr. Abbas received his PhD in petroleum engineering/ drilling engineering from the School of Chemical and Process Engineering, University of Leeds, UK in 2016. He published numerous papers in the field of Oil Drilling Engineering in various journals as well as he participated in many local and international conferences. 

Ali R. Hassanpour, Institute of Particle Science and Engineering, School of Chemical and Process Engineering, University of Leeds, LS2 9JT,
Dr. Ali Hassanpour is an Associate Professor. He is the Head of Petroleum Engineering Programmes at University of Leeds, United Kingdom.


Archard, J.F., 1953. Contact and Rubbing of Flat Surfaces. Journal of Applied Physics, 24(8), pp.981-988.

Beake, B.D., Vishnyakov, V.M., Valizadeh, R. and Colligon, J.S., 2006. Influence of mechanical properties on the nano-scratch behaviour of hard nanocomposite TiN/Si 3 N 4 coatings on Si. Journal of Physics D: Applied Physics. 39(7), pp.1392-1397.

Beake, B.D., Goodes, S.R. and Shi, B., 2009. Nanomechanical and nanotribological testing of ultra-thin carbon-based and MoST films for increased MEMS durability. Journal of Physics D: Applied Physics. 42(6), pp.065301.

Beake, B.D., Harris, A.J. and Liskiewicz, T.W., 2013. Review of recent progress in nano-scratch testing. Tribology - Materials, Surfaces and Interfaces. 7(2), pp.87-96.

Beake, B.D., Shi, B. and Sullivan, J.L., 2011. Nanoscratch and nanowear testing of TiN coatings on M42 steel. Tribology-Materials, Surfaces and Interfaces. 5(4), pp.141-147.

Bellin, F., Dourfaye, A., King, W. and Thigpen, M., 2010a. The current state of PDC bit technology. World Oil. 9, pp.53-58.

Bellin, F., Dourfaye, A., King, W. and Thigpen, M., 2010b. The current state of PDC bit technology. World Oil, 2010, pp.41-46.

Bellin, F., Dourfaye, A., King, W. and Thigpen, M., 2010c. The current state of PDC bit technology. World Oil, 2010, pp.67-71.

Couvy, H., Lahiri, D., Chen, J., Agarwal, A. and Sen, G., 2011. Nanohardness and Young’s modulus of nanopolycrystalline diamond. Scripta Materialia. 64(11), pp.1019-1022.

CSM Instruments., 2002. Overview of Mechanical Testing Standards. Available from: http://www.csm-instruments.com/en/webfm_send/42. [Last accessed on 2015 Jun 29].

Dubrovinskaia, N., Dub, S., Dubrovinsky, L., 2006. Super wear resistance of aggregated diamond nanorods. Nano Lett. 6(4), pp.824-826.

Fang, Z., Griffo, A., White, B., Belnap, D., Hamilton, R., Portwood, G.P., Cox, P., Hilmas, G. and Bitler, J., 2001.Chipping resistant polycrystalline diamond and carbide composite materials for roller cone bits. In: The SPE Annual Technical Conference and Exhibition. New Orleans, Louisiana. USA.

Geoffroy, H., Minh, D.N., Bergues, J. and Putot, C., 1999. Interaction between Rock and Worn PDC Bit: Theory and Experiments. In: The 9th International Society for Rock Mechanics Congress. Paris. France.

Hutchings, I.M., 1992. Tribology: Friction and Wear of Engineering Materials. Edward Arnold, London.

Mori, N., Moriguchi, H., Ikegaya, A., Shioya, Y. and Ohbi, K., 2003.

Development of Highly Durable Materials for Drilling Hard and Abrasive Rocks. In: The SPE Asia Pacific Oil and Gas Conference and Exhibition. 15-17 April 2000, Jakarta. Indonesia.

Mouritz, A.P. and Hutchings, I.M., 1991. The Abrasive Wear of Rock Drill Bit Materials. Society of Petroleum Engineers, Paper SPE 24222.

Ndlovu, S., 2009. The wear properties of Tungsten Carbide-Cobalt Hardmetals from the Nanoscale up to the Macroscopic Scale. APhD Dissertation Submitted to the Materials Science and Engineering, University of Erlangen-Nuremberg, Germany.

Ning, Z. and Ghadiri, M., 2006. Distinct element analysis of attrition of granular solids under shear deformation. Chemical Engineering Science. 61(18), pp.5991-6001.

Osipov, A.S., Bondarenko, N.A., Petrusha, I.A. and Mechnik, V.A., 2010. Drill bits with thermostable PDC inserts. Diamond Tooling Journal. 70(625), pp.31-34.

Available from: http://www.dtj-online.com/userfiles/file/Vol70Num625_31-34. pdf. [Last accessed on 2012 Sep 16].

Rabinowicz, E., 1996. Friction and Wear of Materials. 2nd ed. John Wiley and Sons, Toronto, ON.

Richardson, R.C., 1968. The wear of metals by relatively soft abrasives. Wear. 11(4), pp.245-275.

Sumiya, H. and Irifune, T., 2004. Indentation hardness of nano-polycrystalline diamond prepared from graphite by direct conversion. Diamond and Related Materials. 13(10), pp.1771-1776.

Tze-Pin, L., Hood, M., Cooper, G. and Xiaohong, L., 1992. Wear and failure mechanisms of polycrystalline diamond compact bits. Wear. 156(1), pp.133-150.

Yahiaoui, M., Gerbaud, L., Paris, J.Y., Denape, J. and Dourfaye, A., 2013. Astudy on PDC drill bits quality. Wear. 298-299, pp.32-41.

Zacny, K. 2012. Fracture and fatigue of polycrystalline-diamond compacts. SPE Drilling and Completion 27, pp.145-157.

How to Cite
Abbas, R. K. and Hassanpour, A. R. (2018) “Evaluating the Wear of Polycrystalline Diamond Compact Drill Bit Cutters using Indentation and Scratch Tests”, ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY, 6(1), pp. 46-54. doi: 10.14500/aro.10278.