In 2019, the Perfobur company developed and tested in field conditions the technology of hydromonitor development of uncased channels with hydrochloric acid solution after branched directional drilling of multi-channel channels using the Perfobur technical system (TS).
At the wells, 2 channels of 7 m long and 2 channels of 14 m each were drilled. After drilling each channel, directional survey studies were conducted to confirm the design trajectory of the formation. After that, in each channel, a spot acid treatment was conducted through a jet nozzle designed by «Perfobur» LLC according to the «fir branch» scheme.
18.5 m3 and 48 m3 of acid were pumped into the wells, respectively. In the channel drilling works, a non-removable anchor module was used, which will make it possible to enter the channels many times in the future for their repair, for example, the layout with the Perfobur water-jet nozzle for acid treatments.
Wells were put into operation with fluid rates of 12 m3 / day and 51 m3 / day.