Drilling of extra-hard formations

Fan Lu

doi:10.1007/BF02652052

Journal of Central South University ›› 1996, Vol. 3 ›› Issue (1) : 31 -33. DOI: 10.1007/BF02652052

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Drilling of extra-hard formations

Fan Lu ¹

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Abstract

The reason for bit slipping in extra-hard formations has been analysed, and a new type of anti-slipping bit for extra-hard formations have been recommended.

Keywords

bit slipping / extra-hard formation / diamond

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Fan Lu. Drilling of extra-hard formations. Journal of Central South University, 1996, 3(1): 31-33 DOI:10.1007/BF02652052

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References

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[1]	LuFan. A new method for classification of rock drillability. Transaction of Nonferrous Metals Society of China, 1993, 3(3): 75-80(in Chinese)

[2]	LuFan. Measuring of cooling liquid lubrication of the friction pair of diamond-rock. Journal of Central-South Institute of Mining and Metallurgy, 1994, 25(6): 674-677(in Chinese)