Open AccessSTUDY OF STATIC AND DYNAMIC PARAMETERS OF HYDROCLEAVING DEVICE
Author(s) -
Aleksey Kordubaylo,
Б. Ф. Симонов,
Yuri Pronkin
Publication year - 2019
Publication title -
interèkspo geo-sibirʹ
Language(s) - English
Resource type - Journals
ISSN - 2618-981X
DOI - 10.33764/2618-981x-2019-2-4-89-97
Subject(s) - thrust , plunger , materials science , mechanics , work (physics) , hydrostatic pressure , hydrostatic equilibrium , static pressure , chamber pressure , internal pressure , composite material , mechanical engineering , physics , engineering , quantum mechanics
In the work current importance of creation of hole electro driven pulse seismic sources for treatment of productive collectors of oil and gas deposit in order to hydrocarbons extraction intensification is justified. Study results of transfer center of strike pulses to extracting column are represented. The center is represented with hydrocleaving device. Objectives of the work are: establishing of dependences of plunger dies thrust force of hydrocleaving device on static pressure of working liquid in chamber, discovering of optimal values of hydrostatic pressure for provision of maximal pressure pulses in the chamber. Analytical dependence of thrust force on pressure in the chamber is obtained. Values of static strain of pipe fragment with diameter 122mm and wall thickness 9 mm under action of calculated thrust force are determined by methods of numerical simulations. Strains of fragment of the same pipe are experimentally studied under action of prototype thrust force. It is established that at pressure in the chamber up to 10MPa pipe strain at action axis is elastic up to 1mm. Repeatability of physical and numerical measurements is within 10%. With further increasing of the pressure up to 40 MPa the strain is elastic plastic up to 2.2mm. Using the method of physical simulation, it is established that pressure pulses in hydrocleaving device reach maximal values (up to 12 MPa) when values of preliminary static pressure are from 17 MPa up to 21MPa. However, increasing of strike energy above 180 J do not influence on value of pulse pressure significantly. Previously the devices of such type were not studied and were not applied in dynamic working modes. In the work recommendations for construction change of hydrocleaver for improvement of its dynamic parameters are formulated.