FIELD: oil and gas production.
SUBSTANCE: procedure for treatment of well crossing zone consists in following stages: lowering string with hydro-jet tool into well; installation of hydro-jet tool adjacent to well in first lengthwise position, in first radial position in well; in pumping fracturing liquid with propping agent through string of tool and at least one hole in hydro-jet tool for initiating frac jobs in first lengthwise position and first radial position in well; and in transfer of hydro-jet tool with turn of at least one hole into second radial position in well by means of ratchet gear. Further, the procedure consists in axial retraction of the hydro-jet tool relative to the string by decreasing hydraulic pressure in the string and simultaneously in turn of the hydro-jet tool; in hydro-jet tool axial moving-out relative to the string into an advanced position by rising hydraulic pressure in the string and simultaneously in turn of the hydro-jet tool into the second radial position.
EFFECT: fixed and accurate determination of hydraulic fractures place.
23 cl, 11 dwg
