TY - CPAPER AU - Jаn Zіаjа TI - MODIFIED DRILLING FLUIDS FOR WORKOVER JOBS IN OIL WELLS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining PY - 2019 SP - 1017 EP - 1024 DO - 10.5593/sgem2019/1.2/s06.129 PB - STEF92 Technology ER -