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
| Title | Year | Author | Number |
|---|---|---|---|
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|
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RU2785882C2 |
