PERFORATION AND TREATMENT METHOD OF BOTTOM-HOLE ZONE, AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2012 - IPC E21B43/117 E21B43/263 

FIELD: oil and gas industry.

SUBSTANCE: method involves well perforation using a hollow-carrier perforator and further fracturing of formation using thermal gas generator, emission of gas during combustion of its fuel, which is supplied through the connecting assembly to perforator housing and directed jets acting on the formed perforation channels. As thermal gas generator fuel there used is mixed composition that is not detonable, which generates the gas during combustion with major content of chemical high-activity chlorhydric acid owing to which there created is chemical influence on the rock matrix and thus the sizes of channels and cracks are increased, walls of perforated channels are sealed and growth of filtration surface in productive formation is performed; at that, gas action on perforated channels in the formation is performed in the form of pulse pressures.

EFFECT: increasing formation perforation efficiency together with start-up in common perforator device and thermal gas generator, at combustion of fuel of which high-activity chlorhydric acid is formed.

2 cl, 4 dwg