METHOD OF WELL STRAINER FABRICATION

摘要

FIELD: oil and gas industry.SUBSTANCE: tubular body with threaded ends is perforated and installed at exterior surface of a casing with squamate slots finished up to a nominal size by rolling of the casing between rollers. Rolling of the casing between rollers is made till protrusions are formed at the beginning and ending of each slot and a cap appears at upper protrusion of each squamate slot. The gap between rollers is equal to double thickness of a rolled sheet plus 40-60 mcm, while diameter of a shape-generating driven roller is equal to 0.75-0.85 of the casing diameter.EFFECT: increase of performance rating, improvement of safety during operation.5 dwg