FIELD: oil and gas industry.
SUBSTANCE: invention relates to method and facility for initiation of formation by several azimuth of vertical cracks of hydraulic fracturing from one drill hole in friable or slightly cemented sedimentary rocks, which are provided for control of formation and management of distribution by several azimuth of hydraulic fracturing cracks. Essence of the invention: forcing casing pipec by several initiating sections is inserted into drill hole and saturated with cement grout. Disruptive liquid, transferring propping agent, pumping into forcing casing pipe and there are opened initiating sections, sliding layer in the direction orthogonal the first azimuth plane of crack. After finishing of pumping into the first crack disruptive liquid is again pumped into the forcing casing pipe and it is opened the group from the second and following initiating sections for layer sliding, formation initiation and diffusion of the second and following vertical cracks of frac job by azimuth, differs from azimuth of the first and following created before cracks.
EFFECT: vertical cracks, passing by several azimuth, there are provided major yield and production from the layer of liquids on the oil basis.
18 cl, 10 dwg
