Drachuk O. Ground of rational parameters of small-sized shaped charges for downhole perforators

In dissertation grounded rational parameters of small-sized shaped charges (SC) for downhole perforators with powder cumulative linear (CL), made for technologies of one-sided cold-press, at which effective cumulative strike-through is provided with formation of holes of necessary geometrical configuration without the change of other parameters of construction of SC. Conformities to law of influence of sizes and form of grains of powder material, and also porosity and acoustic inflexibility of material pressed from it on technology of one-sided cold-press of CL, technologies of making on efficiency of cumulative strike-through. Possibility of application of engineering method of L. P. Orlenko is proved for the calculation of speed of the head parts of the cumulative jet, which formed from powder CL. Methodical recommendations are developed from planning and making of constructions of small-sized SC for downhole perforators. Small-sized SC and also downhole cumulative perforators, which equipped by them are developed, improved and applied in industry