STUDY OF SPECIFIC ENERGY METHOD OF BIT SELECTION ON THE BASIS OF DRILL BIT-DEPTH DATA IN UPPER ASSAM OIL FIELDS

Drilling bit is the most important and crucial tool for smooth and economic drilling of an oil well. Achieving the desired rate of penetration with the least possible bit wear and minimal hole problems is the goal of every drilling engineer. Drilling engineers deal with many challenges before and during drilling a new well even in a known area. There are many parameters related to hardware and daily operations that are planned and also modified as the drilling progress. Bit selection is one of the important parameters for planning and designing a new oil or gas well. The aim of this research work is to study and compare the performances of different drill bits in similar formations by specific energy method of bit selection.