COMPOSITION FOR TEMPORARY SEALING DEVICE USED WHEN CARRYING OUT FIRE WORKS ON A GAS PIPELINE OF SMALL DIAMETER

摘要

FIELD: oil and gas industry.SUBSTANCE: described composition for a temporary sealing device used for hot works performance on a small-diameter gas pipe, contains oil-containing bitumen, rosin, petroleum oil and filler, and porophore blowing agent with decomposition temperature of not above 100°C is used as filler at the following ratio of components, wt %: bitumen 10-80; porophore blowing agent 5-80; rosin 0.5-14.5; petroleum oil 0.5-9.5.EFFECT: production of a sealing plug that withstands gas pressure drop.2 tbl, 6 ex