Some of the world's most challenging environments for oil and gas production measurement today are in offshore gas and gas/condensate fields. Challenges include an increased operating range, fast-changing fluid compositions, and the need for more accurate and sensitive measurements over the life of the field. In many fields, measurement of water salinity also has become increasingly important, providing the reservoir engineer with information on the rates of hydrate, scale and corrosion inhibitors that need to be injected.
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