On increasing the permeability of the bottomhole zone of the oil well

Oil production is increasingly faced with the problem of hard-to-recover oil reserves occurring in shale terrigenous formations with low permeability. As development progresses, the filtration characteristics of reservoirs deteriorate, as the permeability coefficient decreases more and more. Therefore, one of the main tasks is to restore and improve the filtration characteristics of the BFZ. An analysis was made of the influence of the length of cracks in the rock after hydraulic fracturing on the productivity of the well and the reduction of the negative skin effect.