%0 Journal Article %T USE OF MODIFIED TECHNICAL LIGNINS IN DRILLING TECHNOLOGY %A Scherbin, S.A. %A Evdokimenko, D.S. %A Borisov, A.V. %K drilling of wells, drilling mud, lignin, chemical modification, lignosulfonic acids, lignopolymers %J Modern Technologies and Scientific and Technological Progress %D 2023 %N 2023 %P 1 %I Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»