FIELD: oil industry, in particular, methods for bed isolation during well borehole fortification.
SUBSTANCE: expanding pipe is lowered into fortification interval. Pipe is rectified by means of creating excessive pressure in it. In accordance to invention, in hollows of recesses of profiled portion of expanding pipe hermetic chambers are formed with radius of external cover equal to radius of circle circumscribed around expanding pipe. Quick-freezing expanding backfill compound is forced into chambers, capable of hardening during interaction with well liquid.
EFFECT: increased bed isolation quality.
2 dwg, 1 ex
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