FIELD: oil and gas producing industry.
SUBSTANCE: method includes killing of well, mouth remanifolding, removal of production tubing from borehole and lowering into borehole flow column with high pressure packer, following mouth remanifolding, pack sealing, performing hydraulic fracturing of formation with fixing faults by proppant, then mouth remanifolding, tearing off high pressure packer, lowering flow column into borehole, mouth remanifolding and well completion. According to invention, after killing of well, during mouth remanifolding, preventer is installed. In hydraulic fracturing of formation, sealing solution and well killing fluid of necessary density is pumped into production pipes and annula space via circular valve. After that, at least 2 cycles of fluid circulation is performed.
EFFECT: reliability and safety of process is increased while assembling cost is reduced.
3 dwg
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