Roxar subsea Wetgas meter

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Emerson Process Management has launched the Roxar subsea Wetgas meter for accurate production measurement, reduced risk and improved flow assurance in gas and gas condensate fields.

Hydrates, corrosion, scaling and water coning in the reservoir represent the biggest challenges to offshore gas producers and are all caused by formation water breakthrough into the well. The Roxar meter allows the earliest possible detection of water from gas wells. The meter comes with improved water sensitivity, accuracy and rapid response together with a built-in salinity measurement system.

The meter’s microwave-based measurements and multivariate analysis functionality are operational in all field conditions and fluid compositions. The meter detects changes in water content of the flowing well at as little as 0.2 ppm (parts per million) - representing a concentration less than a droplet of water finely distributed in a volume equal to that of four car fuel tanks.

The Roxar meter generates an uncertainty specification of ±0.02% abs WVF (water volume fraction) at GVF (gas void fraction) 99-100%.

The meter is suitable for the changing operating conditions and varying fluid compositions seen in gas and gas condensate fields. Measurement speeds at 20 times/s enable immediate actions to be taken to protect subsea system integrity and maintain flow assurance.