FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil and gas industry, namely to repair of well shank filter, drilled to ultraviscous oil. Proposed method comprises drilling of well equipped with casing string, installation of liner filter in uncased interval of production formation, production of formation product through liner filter. Oil equipment is placed in the liner filter. When the equipment is caught in the liner filter, the oil equipment is first extracted by lowering of the appropriate fishing tool equipped with an automatic catch, which operates at loads higher than allowable for extraction of oil equipment. At non-extraction of oil equipment, fishing tool is lowered for liner filter with its further extraction to surface. After cleaning, inspection of the liner filter or its replacement, the liner filter is installed in the uncased interval of the horizontal shaft and lowered into the liner filter of the oil equipment for further operation.
EFFECT: simplified repair, increased technological capabilities.
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