Influence of drill bit design on drilling cost (with SVB-2 machines at Estonslanets field).
Abstract
Improvement of drilling operations and reduction of their costs is one of the urgent tasks of the Estonian oil shale deposit. The volume of overburden limestone drilling for the quarries of the Estonian Oil Shale Trust amounted to 501 600 m of 115 mm diameter blast holes in 1964. With the commissioning of new quarries the drilling volume will increase to 1.2 million meters per year ...
Область исследования:
(Archived) Without section
Funding:
None
References
- Imas A. D. Increase in the density of borehole charging at rotary drilling. Uglegrotekhizdat, 1956.
- Mayorov Y. S. Experimental studies on the choice of effective design of a drilling crown for the machine SVB-2 when drilling a borehole in the conditions of coal pits of Kuzbass. In the collection: Mechanization and Automation of Production Processes, No. 10. Nedra, 1964.
- Mikhailov V. G., Simileisky M. G., Shamshin V. N. New crowns for auger bits. N. New crowns for auger drilling of explosive boreholes. Mining Journal, No. 12, 1963.
- Taran A. P. Influence of inequality of cutting forces on work of cutting edges of a drilling tip. Mining Machines and Automation, No. 9, 1962.
- Jager K. Silikattechnik, No. 11, 1960.
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