最小二乘加权法在多相流计量中的应用  

Application of Weighted Type Least Squares on Multiphase Flow Meter

作　　者：何红艳[1] 童新华[2] 董守平[1] 

机构地区：[1]中国石油大学机电工程学院,北京102249 [2]装备指挥技术学院士官系,北京102249

出　　处：《石油矿场机械》2009年第6期64-68,共5页Oil Field Equipment

基　　金：国家高技术研究发展计划(863计划)(2007AA06Z224)

摘　　要：介绍了多相流量计的基本原理和试验数据采集,运用最小二乘加权法对采集到的试验数据进行相应的处理,并通过Visual C++编程实现高斯消元法求解方程。试验数据表明:液相总量相对误差在±5%以内,液相含水率相对误差在±1.5%以内,气相相对误差在±20%以内。该计量精度可以满足油田生产的需要。The principles of muhiphase flow meter were introduced briefly, in which the ways to measure liquid flow rate, and watercut of liquid phase were included. And data collection and data processing were discussed in detail by the local trial, weighted type least squares and Gauss elimination which was compiled by Visual C＋＋ were applied. The results showed that the liquid phase relative error was in ±5%, the liquid phase moisture content relative error was in± 1. 5%, the gas phase relative error was in ±20%. The accuracy of measurement could be available of oil production.

关 键 词：多相流 最小二乘加权法 VISUAL C++ 高斯消元法 

分 类 号：TE937[石油与天然气工程—石油机械设备]