Перегляд Mining of Mineral Deposits по Автору "Moisyshyn, V"
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Predicting remaining lifetime of drill pipes basing upon the fatigue crack kinetics within a pre-critical period
Tyrlych, V; Moisyshyn, V (National Mining University, 2019-09-30)Purpose is to determine regularities of the development of corrosive fatigue cracks in terms of high-strength drill pipes. Methods. Basing upon the approaches of the material failure mechanics, the crack has been characterized ... -
The impact of vibration mechanism’ installation place on the process of retrieving stuck drill pipe
Moisyshyn, V; Levchuk, K (National Mining University, 2016-09-30)Purpose. The present paper studies the dependence of the dynamic oscillatory movements in the area of drill string sticking on the parameters of vibrating mechanism and place of its installation in the heavy weight drill ...