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Abstract

Systems and methods use a glycol solution for inhibiting formation of hydrates in a flowline. The solution forms a mixture with the produced water thereby inhibiting the formation of natural gas hydrates in the flowline. After a period of use, a rich glycol solution forms which is then regenerated by heat in a heating means such as a reboiler located at a receiving facility, resulting in a lean glycol solution suitable for use inhibiting the formation of natural gas hydrates. The concentration of the lean glycol solution is varied based on input parameters selected from operating conditions of the fluid handling system to ensure that a required concentration of the lean glycol solution is met, as determined by a processor. A control means controls the lean glycol concentration using lean glycol temperature, lean glycol concentration and/or a duty of the heating means as a control variable.

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First Claim