Performance Measurement and Efficiency Improvement for Onshore Drilling Rigs Operated by OMV
Research output: Research › Master's Thesis
The major objective of oil companies has become to increase drilling efficiency and minimize drilling cost, saving as much as possible is important today more than any time else due to the drastic drop of oil price in addition to the increase of the cost of well drilling and contracting. The cost of any well includes several factors such as: the rig, casing, personnel, drilling fluids, drilling equipment, etc. The cost of the well depends mainly on the time it takes to drill a well and complete it successfully. Therefore, the less time it takes, the less is spent. Different methods and ways have been employed by operating companies to achieve operation optimization and cost reduction in order to decrease the non- productive time (NPT) and the invisible lost time (ILT) which usually occur because of; unnecessary operations such, use of sub-optimal equipment, and unexperienced crew. For that reason the identification and reduction of ILT and NPT events is the key point for huge savings during the well construction process that is why rig performance monitoring has become a very essential role for operators in order to improve drilling performance, increase the efficiency, and reduce drilling operation cost. Automatic Drilling Performance Measurement of drilling crews and equipment (ADPM) is a real-time analytical tool was developed and its able to collect, visualize and observe the performance of drilling and rig-related Key Performance Indicators (KPIs), Prior to this tool, it was difficult to track, record, and highlight ILT and NPT events. APDM analyzes and calculates KPIs such as connection times and pipe moving times during tripping and casing; this tool is capable of accurately recognizing the rigs that are not performing around their contractual targets as well as identifying the saving potential of each KPI. The objective of this thesis is to analyze the performance of the various rigs that have been employed by OMV in onshore drilling operations in Austria, Pakistan and Yemen in terms of identifying ILT and analyzing the causes of NPT by measuring and evaluating the effective KPIs that contribute to the drilling operations, this thesis also aims to set new targets for some KPIs that would reduce the duration in future wells with consideration to safety and consistency. The thesis will also highlight the rooms of improvements, the lessons learnt and the operations that can be eliminated or reduced in time. Best practice wells will be generated based upon already achieved performance for possible future wells for the three countries using best composite time approach.