FIELD: oil and gas extractive industry.
SUBSTANCE: method includes lowering assemblage with brushes on tubing column into perforation interval. Interval is filled with chemically active environment. By driving tubing column, assemblages are rotated and concurrently reciprocally displaced. Inter-tubular space is separated above perforation range. Bed is drained with forming of sign-alternating liquid displacement in perforation interval and weak depression pulses. Washing out of treatment products is performed by pumping out reaction products with dirt through apertures in the brush.
EFFECT: higher efficiency.
1 ex, 2 dwg
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Authors
Dates
2005-01-20—Published
2004-02-17—Filed