TY - CPAPER AU - Rafał Wiśniowski TI - MINIMIZING BOTTOMHOLE PRESSURE LOSSES USING TSE - TOTAL SPECIFIC ENERGY - A NEW INDICATOR OF DRILLING EFFICIENCY T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration and Mining PY - 2018 SP - 597 EP - 604 DO - 10.5593/sgem2018/1.4/s06.078 PB - STEF92 Technology ER -