... of the conditions existing on the surface, within the wellbore and within the reservoir. artificial lift system Drillstem Testing acoustic trace reflection production control Upstream Oil & Gas gas well gaseous liquid column acoustic test perforation Reservoir Surveillance liquid level...

... productivity operation reflection fluid level drillstem testing microphone pump depth perforation operator acoustic velocity personnel gas gravity gravity wave generator spe 93832 fluid level survey controller continuous fluid level generator Introduction Record hydrocarbon prices...

... and automatically processes collar reflections to accurately count almost all of the collars from the initial blast to the liquid level. This automatic analysis will determine the liquid level depth for 95% of the wells. However, some wells have conditions or anomalies that these procedures will not function...

... pipe wall production control production logging detection upstream oil & gas hydrate deposit reservoir surveillance thickness scale inhibition deposition hydrate inhibition hydrate formation online monitoring reflection oilfield chemistry hydrate remediation on-line monitoring...