油田开采进入高含水期后,水计量在油田生产计量中日趋重要。目前,水计量的难点在于含油热污水的计量,其关键是如何保证大口径热污水表计量的可靠性。大庆油田使用和试用的大口径热污水表普遍存在着精度不可靠、检定周期难确定、寿命参差不齐的问题。相当数量的大口径热污水表用后不久便产生超差,有的超差量甚至很大。 After the oilfield mining enters the high water cut period, the water metering becomes more and more important in the oilfield production measurement. At present, the difficulty of water metering lies in the measurement of oily heat and sewage, and the key is how to ensure the reliability of the measurement of large-caliber heat water meters. Daqing Oilfield use and trial of large-caliber hot water meter ubiquitous accuracy is not reliable, test cycle is difficult to determine, uneven life problems. A considerable number of large-caliber hot water table soon after they produce ultra-poor, and some super-difference even large.