FACTORS AFFECTING DRILL BIT PERFORMANCE: ANALYSIS BASED ON FORMATION CHARACTERISTICS AND FIELD PRACTICES

Drill bit performance remains one of the key factors influencing drilling efficiency, operational cost, and well construction success in oil and gas operations. This study presents a comprehensive analysis of the primary factors affecting drill bit performance, with particular emphasis on formation characteristics and field practices. The research integrates theoretical principles of bit–rock interaction with practical insights derived from reported field trends. Formation geomechanics, including rock strength, abrasiveness, and heterogeneity, are analyzed in relation to drilling parameters such as weight on bit, rotary speed, and mechanical specific energy. A comparative evaluation of drill bit types, including polycrystalline diamond compact (PDC) and roller cone bits, is conducted to determine their suitability under varying formation conditions. Special attention is given to the selection of appropriate drill bit types based on formation characteristics to ensure stable drilling performance under changing geological conditions. The study further incorporates representative field-based scenarios to validate theoretical relationships and highlight operational considerations. Field data analysis is used to support data-driven decision-making and to demonstrate the practical importance of monitoring drilling parameters in modern drilling operations. The results demonstrate that optimal drill bit performance is achieved through an integrated approach combining proper bit selection, parameter optimization, and real-time monitoring of drilling efficiency indicators. Practical recommendations are provided to improve rate of penetration, reduce bit wear, and enhance overall drilling performance. Keywords: Drill bit performance, formation geomechanics, rate of penetration, mechanical specific energy, bit wear, drilling optimization.