Abstract
The possibility of utilizing abrasive water-jet cutting techniques for improving drilling performance has been investigated. For the experimental investigations a new type of bit especially suited for jet drilling was designed, as well as a light weight laboratory drilling equipment for drilling 140 mm holes. 21 holes of up to 0.5 m depth were drilled into samples of concrete and different types of rocks.
The results show that a high rate of penetration can be obtained in all types of rock also when using low force on the bit (WOB, TOB) and low rotational frequency of the bit (RPM). The results indicate that abrasive jet drilling can significantly improve the rate of penetration when combined with a mechanical drill bit. Abrasive jet drilling can also improve bit life and have advantages for horizontal drilling due to light weight drilling equipment as well as in deep drilling due to reduced time spent for tripping. It is possible to implement the abrasive water-jet cutting technology into conventional drilling technology with rather small modifications of the traditional drilling equipment.
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© 1992 Springer Science+Business Media Dordrecht
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Vestavik, O.M., Skaugen, E. (1992). Abrasive Water-Jet Drilling. In: Lichtarowicz, A. (eds) Jet Cutting Technology. Fluid Mechanics and Its Applications, vol 13. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2678-6_26
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DOI: https://doi.org/10.1007/978-94-011-2678-6_26
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