FIELD: oil and gas production.
SUBSTANCE: method consists in circulation of washing compound in the well for 3-6 hours at flow rate 5-10 l/s, washing out the reaction products from the well by water in well volume, bottom flushing by water in volume not less than 1.5 of well volume. Washing compound represents a mixture that contains, parts by volume: solvent of asphaltic-resinous-paraffin deposits "INTAT-4" - 100-360, chemical reagent ITPS-04-A - 45-60, service water with density from 1.0 to 1.18 g/cm3 - 1000.
EFFECT: in case of flexible tubes they are reciprocated in the course of circulation from the bottom to the top of productive stratum.
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Authors
Dates
2012-07-10—Published
2011-09-06—Filed