| 摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: invention provides grouting composition designed for production well repair operations and water inflow shutoff during boring operations. Composition contains, wt parts: propylene oxide oligomer isocyanate or ethylene oxide oligomer isocyanate, or propylene oxide/or ethylene oxide cooligomer isocyanate 100, hydrocarbon liquid as solvent 50-200, water 4-8, surfactant (additional component) 0.04-2, and amine (polyethylene-polyamine, triethanolamine) 0.03-1.0. ^ EFFECT: improved physicochemical characteristics of hydrophobic polymeric grouting composition, increased homogeneity and density throughout bulk. ^ 1 tbl, 9 ex |
