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- W2369032715 abstract "The deep formations at Xujiaweizi area in the Daqing oil field present the features of poor drillability,high abrasiveness and high hardness,vertically inter-layered sandstones and mudstones,and gravel formations exisited.All these features lead to difficult drilling and thus shorten the life expectancy of drill bits and drilling tools.The statistical analysis indicates that the damage to cone bits used in this area includes worn teeth,bit teeth dropping,broken teeth,bit cone sticking,and gauging wearing.This paper recommends a series of measures,such as improving the carbide insert material,developing carbide insert with novel shape,combining compound teeth with lanthanum teeth,and improving drilling program are recommended.All those countermeasures have facilitated the wide application of high-efficiency bits." @default.
- W2369032715 created "2016-06-24" @default.
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- W2369032715 date "2008-01-01" @default.
- W2369032715 modified "2023-09-23" @default.
- W2369032715 title "ANALYTIC STUDY ON DAMAGE MECHANISM OF ROCK BITS AND CORRESPONDING MEASURES SUGGESTED" @default.
- W2369032715 hasPublicationYear "2008" @default.
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