Optimization on number of wells for preparing a field for Underground Gas Storage

摘要

In past few decades, energy consumption grows rapidly. The demand for energy resources such as fuel gas increases, especially during cold months. Besides, pipelines carrying the refined natural gas to costumers have limitations on their capacity. Storing excess gas in geological formations, Underground Gas Storage (UGS), is a crucial technique used to satisfy these constraints. Field preparation for UGS requires injecting gas known as cushion gas during target time to prepare adequate pressure and deliverability. The number of wells is a key parameter for preparing the field since a larger number of wells leads to faster preparation. On the other hand, using more wells costs higher. Thus, an optimum number of wells for preparing a field for UGS must be found. This work is a case study of preparing a field for UGS. Different scenarios are investigated by parallel simulation and the optimum number of wells is measured.