FIELD: oil and gas industry.
SUBSTANCE: invention refers to oil and gas industry, particularly to methods of insulation of troublesome zones at boring of wells and at repair of casing columns with shutters out of profile tubes. The method includes connecting of sections of profile tubes, lowering them into a well, straightening them under pressure and tight pressing them to walls of the well. Lowering of the shutter into the well and washing a bore of the well via interior channels of the shutter is performed with holders clamping initial shape of profiled hollows of tubes. Building-up pressure for straightening of tube hollows is carried out due to excess flow of liquid pumped which destructs the shutters.
EFFECT: upgrading quality and reliability of shutters and reducing power and financial costs.
2 dwg
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