| 摘要 |
FIELD: drilling oil and gas wells, in particular lubricating additive for water-based drilling fluids. ^ SUBSTANCE: claimed additive contains (mass %): tall oil, in particular crude tall oil 40-60; oxyethylated alkylphenols 10-20; alkylimethylammonium chloride 1-5; sodium alkylsiliconates 5-10; polymethylsiloxane 1-5; and balance: kerosene or diesel oil, or mixture thereof as solvent. ^ EFFECT: decreased friction coefficient, reduced consumption of drilling fluid. ^ 3 tbl |
