THE UNIVERSITY OF DODOMA COLLEGE OF EARTH SCIENCES SCHOOL OF MINES AND PETROLEUM ENGINEERING DEPARTMENT OF PETROLEUM AND ENERGY ENGINEERING LABORATORY PRACTICAL REPORT ON THE FACTORS THAT AFFECTS THE PROPERTIES OF THE DRILLING MUD DURING DRILLING PROCESS NAME: SIMON HEZRON REGISTRATION NUMBER: T/UDOM/2014/07337 DEGREE PROGRAME: BSc. PETROLEUM ENGINEERING COURESE CODE: PE 316 COURSE NAME: ENGINEERING LABORATORY I ACADEMIC YEAR: 2016/2017 SUPERVISOR: MR. J. MASATU SUBMISSION DATE: 14 th JUNE 2017