Search academic texts

Information × Registration Number 0222U003268, 0119U103676 , R & D reports Title Ground of parameters of technology of the abrasive-mechanical percussion well-drilling popup.stage_title Head Ihnatov Andrii , Кандидат технічних наук Registration Date 22-02-2022 Organization National Technical University Dnipro Polytechnic popup.description2 A review of research and development in the field of hydromechanical erosional destruction of rocks, special attention is paid to bullet drilling in its historical development. Constructive schemes of modernized devices for drilling wells are offered. The basic regularities and conditions of formation of the bottomhole and wellbore during bullet drilling are highlighted. Signs of bullet drilling have been studied from the standpoint of the presence of a significant dynamic component in the processes of destruction of the mountain massif. The nature of the influence of the rate of destructive loading on the results of downhole deformation processes has been clarified. The constructive and technological features of modernized bullet-jet devices are stated. Theoretically substantiated mechanism of destruction, implemented in a bullet jet device with the effect of mechanical destruction. The mechanism of formation of the bottomhole part of the well by the device of bullet-jet abrasive drilling is studied. It is established that the indicator of reliability of hydromechanical drilling devices is compliance with their designs and technological schemes of application of certain geometric and parametric relations that correspond to a stable mode of well deepening. The results of calculation of profitability of the offered technical decisions and their economic effect which is reached as a result of implementation are resulted.  Product Description popup.authors popup.nrat_date 2022-03-09 Close