FIELD: oil-and-gas production.
SUBSTANCE: lubricating additive for drilling fluids contains, in wt %: vegetable oil 20-30, neutralising agent - alkali 5-10, ferrochrome lignosulphonates 6-8, water - the rest. In another version, the lubricating additive for drilling fluids contains, in wt %: vegetable oil 20-30, neutralising agent - alkali 5-10, ferrochrome lignosulphonates 6-8, lower alcohols C2-C3 and/or polyglycols 5-10, water - the rest.
EFFECT: improved technical, tribotechnical, anti-sticking and inhibiting properties of the drilling fluid, higher drilling in quality due to improved surface-active properties if the drilling fluid filtrate and lower freezing point during winter.
2 cl, 2 tbl
| Title | Year | Author | Number |
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|
RU2677729C1 |
