This document is a summary of the visual evidence, audible noise and line segment balance of an operational natural gas meter station with three parallel 10 inch Daniel's senior fitting meter runs. The flowing conditions at this site would be difficult if not impossible to duplicate in a flow laboratory or any other attempt to replicate these conditions. The economic driver of this project is the daily loss on this line segment. Due to this economic loss CPL's management provided the funding for this investigation. One of CPL's receipt meter stations is located about 100 yards downstream of a compressor station running a 10,000HP Cooper Besmer engine at 280-300RPM with 16 20 inch cylinders. The meter tubes have not been cleaned or internally inspected in at least 15 years. Over this time period the normal amount of compressor oil and pipeline rouge acted as a "marker" that enabled CPL to able to identify swirling, pulsating gas in this station. The following document demonstrates what was found and the corrective action that was taken and the resulting differences in meter performance. This is a study of how differently a meter tube with tube bundles functions as compared to a plate of flow conditioner(CPA 50E)
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