| 摘要 |
FIELD: oil and gas holes drilling. ^ SUBSTANCE: invention relates to lubricant additives for drilling mud. Proposed lubricant additive drilling mud comprising natural higher fatty acid, lower monoatomic (C2-C5)-alcohol and/or oligomeric polyethylene glycol with the polymerization degree n = 2-5, and/or oligomeric polypropylene glycol with value n = 1-3 contains additionally oxal, alkaline metal hydroxide and/or carbonate, and/or mono-, di-, triethanolamine, sulfonated fish oil in the ratio indicated acids : sulfonated fish oil = (99:1)-(1:99) in the following ratio of components of the additive, wt.-%: indicated acids and sulfonated fish oil, 70-90.9; alkaline metal hydroxide and/or carbonate, and/or mono-, di-, triethanolamine, 1-8; oxal, 5-25; indicated alcohol, polyethylene glycol, polypropylene glycol, 1-24. Invention proves enhancing effectiveness of the lubricant additive in clay and clay-free drilling mud. ^ EFFECT: enhanced effectiveness and improved properties of additive. ^ 2 tbl |
