TY JOUR TI THE USE OF LIGNIN-CONTAINING INDUSTRIAL WASTE AND BY-PRODUCTS FOR THE NEEDS OF DRILLING TECHNOLOGY KW drilling of wells KW drilling mud KW lignin KW chemical modification KW lignosulfonic acids KW lignopolymers JO Bulletin of the Angarsk State Technical University AU Scherbin, S.A. AU Evdokimenko, D.S. PY 2023 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»