Title: Prediction of Hydrate Plug Formation at Different Water Cuts in Gas Pipelines
Authors: Isaac Eze Ihua-Maduenyi , Ndidi Emeka Uzoigwe, Uchechi Patience Alerechi , Darlene Nkechinyere Tasie
Volume: 10
Issue: 2
Pages: 11-18
Publication Date: 2026/02/28
Abstract:
Hydrate plug formation in gas pipelines is a significant operational challenge, particularly in offshore and deepwater environments where high pressures and low temperatures favor hydrate creation. Hydrates, which are crystalline compounds formed by water encapsulating gas molecules like methane, can lead to flow blockages and costly shutdowns. This study investigates the prediction of hydrate plug formation at various water cuts, a critical factor influencing hydrate risks, using OLGA and PVTsim simulation tools. The research focuses on integrating these tools to model pipeline conditions accurately, assessing the effects of water content, pressure, temperature, and gas composition on hydrate formation. Various water cut scenarios were simulated to evaluate how different levels of water in the gas stream impact hydrate plugging tendencies. The study identifies critical thresholds for hydrate formation under both steady-state and transient flow conditions, while also exploring the effectiveness of prevention strategies such as inhibitors and thermal management. Results indicate that changes in water cut significantly affect the conditions under which hydrates form, with specific ranges where the risk of plugging increases sharply. This integrated simulation approach enhances understanding of the complex interactions involved, providing valuable insights for optimizing pipeline design and operational practices, ultimately ensuring safer and more efficient gas transport.