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Title: Determination Of Water Vapor In Natural Gas
Author: R. L. Vance
Source: 1967 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1967
Abstract: To prevent condensation of water from natural gas in pipelines, it is necessary to limit the concentration of water vapor in the gas to accord with prevailing pressure and temperature, If water condenses, internal corrosion may occur or hydrates may form to block pipelines, valves and regulators. Therefore, it is customary to dehydrate the gas stream as near to the production source as possible. The water vapor content should be reduced to a level that water condensation will not occur at these conditions of pressure and temperature encountered prior to reaching the ultimate consumer. Most gas contracts are written to limit the water content to some figure under ten pounds of water per million cubic feet. Therefore, in order to determine if the gas meets contract specifications and to control the operations of dehydration facilities, precision methods of measuring water content is needed in a well operated company: preciseness of measurement is mandatory once we consider tolerable amounts of water vapor is but a small fraction of the full stream.

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