摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: water-based composition that can be used for killing of well during pullout of hole and well remedial work as well as for temporary abandonment of well contains, wt %: carboxymethylcellulose3.5-4.5, sodium hydroxide1.5-2.0, copper sulfate 0.3-0.4, and methanol 4.0-16.0. ^ EFFECT: improved rheological properties of composition and increased lifetime of formed gels. ^ 1 tbl |