Use of the Rotary-Percussion Drilling Technology in the OKR Mining Conditions and by Drilling the Wells for Purposes of Heating Pump Installation

by Koníèek Jiøí, Mazáè Josef
Published 2004-09-01

Abandonment of the production wells and protection the environment

by Mazáè Josef, Herman Zdzislaw, Bujok Petr
Published 2004-09-01

New types of drilling tools fit with PCD elements

by Koníèek Jiøí, Kupka Kamil, Mazáè Josef
Published 1997-09-01