FIELD: oil and gas industry.
SUBSTANCE: method to produce a reagent-inhibitor with stabilising properties for treatment of a fresh drilling mud includes hydrolysis of polyacrylonitrile fibre by potassium hydroxide at temperature of (97-100)°C and periodical mixing for 4-5 hours, at the same time at the final stage of hydrolysis potassium formate is added into the reagent at the following ratio of components, wt %: polyacrylonitrile fibre (dry basis) - 8.0-10.0; potassium hydroxide - 8.0-10.0; potassium formate - 4.0-4.5; water - 75.5-80.0.
EFFECT: increased inhibiting and stabilising properties.
2 ex, 2 tbl, 1 dwg
| Title | Year | Author | Number |
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