基于伽马射线透射法的管道油垢厚度模拟测量  

Analog measurement of sediment thickness in oil pipeline based on γ-ray transmission method

作　　者：徐静[1] 严佳浩[1] 孟祥鹏[1] 刘超卓[1] 

机构地区：[1]中国石油大学(华东),山东青岛266580

出　　处：《油气储运》2013年第3期267-269,共3页Oil & Gas Storage and Transportation

基　　金：中国石油大学(华东)教学实验技术改革项目;SY-B201017;2011年中国石油大学(华东)校级大学生创新创业训练计划创新训练项目;20111137

摘　　要：原油管道中的油垢沉积易造成管道阻塞,管道内部油垢厚度的检测成为重要的技术课题。实验测量装置由137Csγ放射源和NaI(Tl)闪烁晶体探测器等组成,采用圆筒状石蜡模拟油垢,用射线透射石蜡,研究了不同厚度的石蜡对γ射线的透射特征,建立了透射强度与石蜡厚度关系的经验公式,其线性相关系数为0.9963。结果表明:伽马射线透射方法对油垢厚度的响应灵敏,可用于管道油垢厚度的无损检测。The sediment in crude oil pipeline will easily lead to a blockage, therefore the detection of sediment thickness in oil pipeline become an important technology issue. The experimental measurement device is composed of 137Csy radioactive source and NaI （T1） scintillation crystal detector. In this paper, researchers study the transmission characteristics of paraffin in different thicknesses through simulating the sediment with a cylindrical paraffin and transmitting the paraffin with γ-ray, and establish an empirical formula between transmission intensity and paraffin thickness, with a linear correlation coefficient 0.996 3. The results show that γ-ray transmission method is sensitive to the sediment thickness, and can be used in oil pipeline for non-destructive test purpose. （1 Table, 4 Figures, 4 References）

关 键 词：圆筒状石蜡 Γ射线 γ射线透射法 原油管道 油垢 厚度 

分 类 号：TE832[石油与天然气工程—油气储运工程]