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Natural Gas Hydrates, 3rd Edition by John Carroll

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Chapter 7

Combating Hydrates Using Heat and Pressure

Abstract

One of the criteria for hydrate formation is the right combination of temperature and pressure, with hydrate formation being favored by relatively high pressure and low temperature. Therefore, if the system is kept warm or at low pressure, hydrate formation can be avoided. Alternatively, if the temperature of the system is increased or the pressure is reduced, a hydrate plug can be melted. This chapter deals with combating hydrates with the use of heat, or more precisely high temperature and reducing the pressure. The major subtheme is the plugging of pipelines from hydrate formation. The mechanism for plug formation is examined briefly. The problem of melting hydrate plugs is reviewed ...

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