胶凝原油结构对超声波速影响规律

管内压力波速是计算管道再启动水力过程的关键参数,自行设计并搭建胶凝原油超声波测试装置,采用时差法测量超声波速,进而研究不同温度下恒温静置过程及恒温剪切过程中胜利原油超声波速及其相关参量的变化规律。结果表明：在凝点以下恒温静置过程中,胜利原油超声波速随时间逐渐增大并最终趋于稳定值;而恒温剪切过程中,超声波速逐渐下降并最终趋于稳定值,即含蜡原油结构越强,超声波速越大,接收信号电压越小,超声衰减也越显著。...

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Published in中国石油大学学报（自然科学版） Vol. 42; no. 1; pp. 126 - 133
Main Author 刘刚;张淇;滕厚兴;卢兴国;陈雷;梁从富;史培玉
Format Journal Article
LanguageChinese
Published 中国石油大学山东省油气储运安全省级重点实验室,山东青岛266580%中国石油塔里木油田公司,新疆库尔勒,841000%中国石化胜利油田分公司油气集输总厂,山东东营,257000 2018
中国石油大学储运与建筑工程学院,山东青岛266580
Subjects
含蜡原油;结构强度;超声波速;超声衰减
waxy crude oil
ultrasonic attenuation
ultrasonic velocity
structural strength
含蜡原油
超声波速
超声衰减
结构强度
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Summary:管内压力波速是计算管道再启动水力过程的关键参数,自行设计并搭建胶凝原油超声波测试装置,采用时差法测量超声波速,进而研究不同温度下恒温静置过程及恒温剪切过程中胜利原油超声波速及其相关参量的变化规律。结果表明：在凝点以下恒温静置过程中,胜利原油超声波速随时间逐渐增大并最终趋于稳定值;而恒温剪切过程中,超声波速逐渐下降并最终趋于稳定值,即含蜡原油结构越强,超声波速越大,接收信号电压越小,超声衰减也越显著。
Bibliography:The pressure wave velocity is the key parameter to calculate the restart hydraulic process of pipelines.Therefore,a gelled crude oil ultrasonic testing device was designed and built,and the ultrasonic velocity of Shengli crude oil and its related parameters in the constant temperature static process and constant temperature during the shearing process under different temperatures were studied.The results show that in the static process under the constant temperature below the gelled point,the ultrasonic velocity of Shengli crude increases gradually with time and finally comes to a stable value.While in the constant temperature shearing process,the ultrasonic velocity decreases gradually with time and finally gets to a stable value.In conclusion,as the structure of the waxy crude oil gets stronger,the ultrasonic velocity becomes bigger,the signal voltage value becomes smaller,and the ultrasonic attenuation is more significant.
waxy crude oil; structural strength; ultrasonic velocity; ultrasonic attenuation
37-14
ISSN:1673-5005
DOI:10.3969/j.issn.1673-5005.2018.01.016