FIELD: oil and gas industry.
SUBSTANCE: inventions can be used for insulation of interfibre and behind-the-casing space, repeated sealing of threaded connections of casing strings during operation of oil and gas wells with high sulphurated hydrogen content. Sealing composition for insulation work in the well includes the following, wt %: pine rosin 20-40, 8-oxyquinoline 0.5-2.0, acetone - the rest.
EFFECT: increasing resistance to hydrosulphuric aggression, decreasing viscosity of sealing composition and increasing efficiency of insulation work in wells.
3 ex
| Title | Year | Author | Number |
|---|---|---|---|
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