Dynamic fluctuations in the submerged hydroacoustic flow annular drill string

Abstract

Intensification process of construction of oil and gas wells that are associated with a reduction of energy
consumption for the rock failure of rock drilling tools and improvement level of hole bottom by wash liquid, are
among the most important problems of the oil and gas industry. The ability to use hidroacustic oscillator with
directional action on linking of bottom hole assembly to the formation of forced oscillations in submerged jet hole
was considered. At certain frequencies, which are emitted by the generator in the washing liquid, the process of
cavitation which excites vibrations that contribute to the intensification of the frequency of failure of the rock face
and purification. Select parameters sonar devices based on using a mathematical model, which is still in the
development stage can more accurately calculate the characteristic vibrations are generated, depending on the
characteristics of the fluid in which they are driven.