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Hydrate Prevention Strategies and the Associated Cost in the Gulf of Mexico

World Journal of Engineering and Technology 2024年第2期12卷 286-309页

作者： ibrahim ninalowo Bahman Tohidi Institute of Petroleum Engineering Heriot Watt University Edinburgh UK

With the petroleum industry endeavoring to develop promising oil and gas in deeper water, gas hydrates prevention is a serious concern for oil and gas producing companies producing at conditions in the hydrate region. This paper details lessons learned from the successful field deployment of AA LDHI and proper implementation strategies used for 3 different practical fields as case studies in the Gulf of Mexico. From the 3 field experiences, the AA LDHI has been used to replace the conventional thermodynamic hydrate inhibitor due to its numerous benefits during steady state operations and transition operations where AA LDHI is injected prior to extended shut in and restart for fields producing at low water cut. However, the strategy to develop a cost effective chemical management of hydrates for fields producing at high water cut is by pumping methanol or diesel to push down the wellbore fluid below the mud line during planned and unplanned shut-ins to delay water production, it also secures the riser with non hydrate fluids. This illustrates how the AA LDHIs are used in conjunction with more conventional hydrate management approaches to reach an optimal cost effective field hydrate management solution. However, this shows that the key to overall success of hydrate prevention is a full integration of a good front end design, a comprehensive deployment and an effective down hole monitoring system.

关键词： Flow Assurance Hydrate Production Chemistry Hydrate Inhibitor Hydrate Prevention Strategies Deep Water Oil and Gas Production Hydrate Blockage

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