Enhanced Technology for HP Gas Condensate Wells Production Testing

Abstract

Production testing of high-pressure gas condensate wells can be fulfilled by traditional test separators or multiphase meters. However, both methods have disadvantages: with a test separator the necessity to keep separation gas pressure at the level of flowline pressure of 80-140 bar does not allow for good quality of separation and measurement of C13+ components carried over with the separated gas. Dropping separation pressure would result in the requirement for flaring of separated gas thus creating large environmental impact or using expensive compression technology to raise pressure to the flowline level which is not economically feasible in most cases. Alternatively, multiphase meters introduced as an environmentally friendly and efficient method for gas condensate wells production testing have shown unstable measurement results with low accuracy and repeatability.