Liquifaction of Gas Residues
Gaseous residuals of the oil and gas extraction process that cannot be utilized must be collected and disposed of. By weight, liquids require less volume than gases. The gas residues are liquefied as much as possible to allow cost-effective disposal. This process, also called gas drying, is carried out in a precipitation vessel, the knockout drum.
High Measurement Requirements due to Extreme Process Conditions
Pressures up to 1,450 psi (100 bar) liquefy the heavy gas components in the knockout drum, causing water and heavy hydrocarbons to precipitate out. The extracted liquid, the condensate, is collected at the vessel bottom and prepared for disposal. The remaining gases are then decompressed, during which temperatures can fall to -130°F (-90°C). The residual gases are sent to the flare to be burned off.
Condensate Level Measurement with the VEGAFLEX 66
The VEGAFLEX 66 guided microwave sensor is used for measuring condensate level in the knockout drum. The sensor is not affected by the extreme pressure and
temperatures so it is very suitable for this measurement. The rugged antenna system continues to out perform other platforms in applications up to 5,801 psi (400 bar) and 752°F (400°C). The VEGAFLEX 66 continues to be a reliable solution for the most demanding applications.
