区域性阴极保护模型寻优过程平稳性及其改进  

Stability of the optimization procedure and its improvement for the regional cathodic protection model

作　　者：吴中元[1] 王勇才[1] 梁旭巍[2] 林红桔[2] 

机构地区：[1]天津纺织工学院管理工程系,天津300160 [2]天津纺织工学院科研处,天津300160

出　　处：《天津纺织工学院学报》1998年第5期95-98,共4页Journal of the Tianjin Institute of Textile Science and Technology

摘　　要：用边界元法（BEM）求解区域性阴极保护的数学模型并用可变误差多面体对系统寻优时，以往的研究对阴极极化曲线的拟合过于简单，寻优的平越性很差．本文对用极极化曲线进行分段线性拟合，便寻优过程更加平稳．经改进后的程序BEMU已成功地用于油井套管外加电流阴极保护系统的工程设计．in former works, the variable error polyhedron method was used to optimizethe model,since the fitting of the cathodic polarization curve is simplistic,the stability ofthe optimization procedure is not up to expectations. In this paper, the piecewise linearfitting is used to optimize the model, thus the stability of the optimlzation procedure isimproved. This calculation method has been used in the cathodic protection design ofsome oil well case pipes.

关 键 词：阴极保护 寻优 油田 区域性 油井套管 腐蚀防护 

分 类 号：TE980.5[石油与天然气工程—石油机械设备]