TY - CPAPER AU - Maria Shipaeva AU - Vladislav Sudakov AU - Anton A. Novikov TI - THE GEOCHEMICAL COMPOSITION OF OIL AS A WAY OF CHECKING THE QUALITY OF HYDRAULIC FRACTURING T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining PY - 2020 SP - 813 EP - 820 DO - 10.5593/sgem2020/1.2/s06.104 PB - STEF92 Technology ER -