ANALYSIS AND INTERPRETATION OF DRILLOFF TEST DATA TO DETERMINE OPTIMUM WEIGHT ON BIT IN BIT OPERATIONS

• Main Author: Naufal Fadilah, Azriel
• Format: Final Project
• Language: Indonesia
• Subjects: Pertambangan dan operasi berkaitan
• Online Access: https://digilib.itb.ac.id/gdl/view/82638
• Institution: Institut Teknologi Bandung

Drill bit play a crucial role in well bore construction. The selection of drill bit is very important for achieving fast and efficient drilling operations. Optimization of drilling parameters is critical for improving efficiency and reducing costs in oil and gas drilling operations. This study analyzes and interprets drilloff test data to optimize drilling parameters for bit operation design. The objectives are to explain the process of drilloff test data processing and interpret the obtained drilling parameters to determine bit drilling performance. The methodology includes literature review, collection and processing of drilloff test data from well X, and analysis to optimize drilling parameters. Results show that rate of penetration (ROP) increases with weight on bit (WOB) up to a certain point. In this case study, the optimal WOB ranges from 25.4 to 30.4 klbs at a rotary speed of 110 RPM. Beyond this range, additional WOB provides minimal ROP improvement. The analysis also indicates that PDC bits offer advantages by achieving high ROP with lower WOB. The study concludes that drilloff test data processing involves calculating time intervals, depth intervals, ROP, and average WOB. The main parameters affecting ROP are WOB and rotary speed. Recommendations for further studies include incorporating more rotary speed variations in testing and considering additional factors such as geological information and bit availability in the field. This research contributes to the ongoing efforts in drilling optimization and bit selection in the petroleum industry.