Experimental assessment of cumulative perforation effect on the armored model of a well support
The results of experimental assessment of cumulative perforation effects on the armored model of a well support, represented by metal discs of 90 mm diameter and 10 mm, thickness with the cement stone between them are presented in the article. Tests using a single charge or a couple of charges were carried out in atmospheric conditions and under the pressure of 10 MPa. It is proved that the perforation depth of the model of the well support and the carbonate reservoir is the most one when penetrating without pressure. Installation of the aluminum protector on the casing string model provides 50...70 % reduction of fracturing. When using "SPARKA" perforation system in samples, simulating carbonate reservoir, there appears additional fracture network, connecting perforation channels with each other, thus increasing the reservoir permeability in the near-well area.