#TITLE_ALTERNATIVE#

• Main Author: Zukhri Fadholi (NIM : 12210074), Bagus
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/26019
• Institution: Institut Teknologi Bandung

Corrosion problem occurred in oil and gas production system is an example of an unavoidable problem. The problem is caused by the presence of water fraction and corrosive material fraction along with the produced hydrocarbon. On the way from the reservoir to the surface, the combination between water fraction and the corrosive substance might adhere to the wall of conduit steel pipe (e.g., tubing, casing, and flowline), and can lead to corrosion on the wall. The corrosion problems can have a major impact on the economics of production because the cost of production equipment is relatively expensive and workover operation are very costly. Therefore, planning and mitigation for a better production system need to be performed so that the rate of corrosion can be controlled and the economic impacts can be minimized. <br /> <br /> The purpose of this thesis is to create an integrated model of the corrosion rate calculation on tubing. Several terms related to the production process that are considered in this model are the characteristics of the produced fluid, flow regimes, pressure and temperature conditions along the tubing, the trajectory of the well, the type of tubing material used, and the use of inhibitors. The model is developed from the prior model of C. de Waard and Lianne Smith. The model of corrosion rate calculation is then validated using field data and the results were compared with the result of Electronic Corrosion Engineer software. <br /> <br /> The corrosion rate calculation models has been able to accurately predict the rate of corrosion in oil and gas wells. Because this model is integrated and accurately proven, then a software-based system is created to assist the model and to facilitate other parties in utilizing this model in the future. With this software, the production system can be simulated and tested for various conditions and then can be compared with each other to obtain the optimum rate of fluid production with minimum corrosion rate. In addition, this software is capable of determining the most suitable tubing material which will be used in a given production environment and condition.