1. (1) Florence, F., Porche, M., Thomas, R., Fox. R., Multi parameter auto drillinq capabilities provide drilling economic benefits, SPE/IADC Drilling Conference, Proceedings,Vol.2 (2009), pp.1303-1312.
2. (2) Hua, P.T., Liu, S.G., Research of auto-drilling technology based on parameters’ self-tuning fuzzy control, Journal of Theoretical and Applied Information Technology, Vol.43, No.2 (2012), pp.170-175. (in Chinese)
3. (3) www.airflex.com
4. (4) Ma, Q.F., Analysis of working characteristics of disc brake system on drilling rigs, China Petroleum Machinery, Vol.28, No.8 (2000), pp.44-46. (in Chinese)
5. (5) Wang, X.H., Zhang, S.W., Wang, D.G., Research on friction and wear performance of brake disc pair materials for new type of drilling rig, Key Engineering Materials, Vol.28, No.1 (2008), pp.438-441.