FIELD: oil and gas industry.
SUBSTANCE: method includes cyclic forcing of cooling mixture into well-adjacent zone of bed and its freezing-unfreezing with following cumulative perforation, while as components of cooling mixture the following reagents are used: water - 68.3 % mass; ammoniac - 19.2 % mass; saltpeter - 12.5 % mass.
EFFECT: higher productiveness.
1 tbl
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Authors
Dates
2005-03-27—Published
2002-05-06—Filed