论文部分内容阅读
近几年来 ,随着各种测量技术的不断进步 ,油井多相流计量得到了较快发展。系统混合多相流量的测量方法是先测出总流量 ,再测出各相组分比值 ,在合适的工作区域范围内 ,各相测量的不确定度为± 10 % 15%。低的组分具有高的不确定度 ,含水率高于 85%时 ,由于油相含量的减少 ,纯油计量误差很大 ,将高达± 2 0 % 50 % ,这对于所有从事多个测量值来推算多相流量的多相流量计来说 ,是一个普遍存在的事实 ,在近期内是难以解决的技术难题。除了尽快研制出直接的互相独立的测量各相流量的传感器 ,使这个问题得到彻底解决以外 ,提高进入传感器油相的含量 ,采用“混合型”油井多相流量计 ,在现阶段是一个较好的办法。
In recent years, with the continuous improvement of various measurement techniques, the measurement of multiphase flow in oil wells has been rapidly developed. The measurement method of system mixed multi-phase flow is to measure the total flow and then measure the ratio of each phase component. The uncertainty of each phase measurement is within ± 10% and 15% within a suitable work area. Low component with high uncertainty, moisture content higher than 85%, due to the reduction of oil content, pure oil measurement error is very large, up to ± 20% 50%, which for all engaged in multiple measurements It is a ubiquitous fact that multiphase flowmeters that calculate multiphase flow rates are difficult to solve in the near future. In addition to developing a direct and independent sensor for measuring the flow rate of each phase as soon as possible so that this problem can be completely solved and the content of the oil phase entering the sensor can be increased, a “hybrid” oil well multiphase flowmeter is better at this stage Approach.