Case Study of Tubing Movement Analysis in Completion Tools Design in Well-X

The completion design of the well must withstand loads while the well is producing by taking into account the conditions of the well so that the tubing movement analysis method can be used in selecting the completion design. The purpose of this study is to determine the length of the seal bore that is safe to use by identifying tubing deformations that affect the integrity and performance of the well. The research was carried out using empirical calculation analysis by calculating the change in length due to the effect of tubing movement. The assumptions of this study include the tubing material has stable mechanical properties, the simulation is under static conditions, namely there is no vibration or dynamic loads, the conditions of temperature and pressurePressure are constant, and heat loss, pressurePressure loss, normal force, and drag force are ignored because the resulting values are small. The limitations of the problem applied in this research include the calculation conditions in the operational conditions and the tubing parts analyzed include casing, tubing and packer. Based on the results of empirical formula calculations, the tubing will elongate by 51.709 in. The effects that dominate the tubing movement are the temperature effect and the ballooning effect, while the piston effect and buckling effect do not produce changes in length and force values. With the tubing movement calculation results, it can be concluded that the applied seal bore length must be more than 100 in to overcome the travel force due to the tubing movement.