OPERATING COST & TIME IMPROVEMENT FOR SQUEEZE CEMENTING DURING WORKOVER ACTIVITIES TO IMPROVE OPERATIONAL BUSINESS METRICS

• Main Author: Huuriyah, Qisthi
• Format: Theses
• Language: Indonesia
• Subjects: Manajemen umum
• Online Access: https://digilib.itb.ac.id/gdl/view/57768
• Institution: Institut Teknologi Bandung

The Rokan Oil Company (ROC) is one of the largest energy company's in Indonesia. ROC always tries to make the most of the energy sources in Rokan's block, the old fields and have been produced from ancient times in the right way, taking advantage of innovative technology, can seize new opportunities for profitable company growth in this block area. The subject of study is the existence of the squeeze cementing or cementing remedial in workover operation in the Drilling & Completion team (D&C). This squeeze cementing job is a part of routine workover, which has done very often in the Minas area. There are opportunities and changes to creates and design the new workover program in squeeze cementing to looking a gap, and optimize their work by taking advantage and carrying out all of the work to maximize production at the Rokan Oil Company. By the data from ROC's records in the Minas area, there has been a significant increase in the last few years from 65 in 2018, rose to 168 in 2019 and last year experienced a record increase to 208 jobs. On the other hand, the process of squeeze cementing takes a long time compared to other jobs, with a high risk of failure (leaking). The research methodology uses the quantitative data method, which is support by Rokan Oil Company's data, through the basis of the problem from the developed analysis of Squeeze cementing baseline in the Minas area from 2020 to early 2021 (February), there are 81 well data. From the baseline data, there are 29 data well for swab dry after squeeze job, which have an average time of 20 hours and cost $ 6,000. 72 data well for mixing the chemical with an average time of 2.03 hours, and the last data for mixing mud polymer from 22 wells and have an average time of 3.73 hours. The framework of this research is using Lean Sigma with DMAIC (Define, Measure, Analyze, Improve, and Control) as the tool to drive improvement initiatives. The author looks at alternative solutions and new strategies thereof, which can be applied, combined, and maximized for squeeze cementing. By eliminating and replacing with offline activities in the previous jobs for mixing chemical and mixing mud polymer, which will reduce and save time ± 6 hours and save on rig days’ cost/job, as well as to take advantage utilizing concurrent work simultaneously with the "tandem" on swab dry activities, which will save and reducing the time from average time 20 hours become 13.21 hours, which was a gap and saving 6.3 hours from those trial. It all aims to take advantage of opportunities, especially to design the best strategy. The trial of improvement saved $ 53,405 from 5 trials run in February 2021, in the Minas area. The author also finds the opportunities for more improvements and reallocation of resources will saving cost and time in this work in the future. This analysis also is able to become new baseline operations in other areas, apart from the Minas area, and can be a new baseline for squeeze cementing in the future.