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| 胶凝原油结构对超声波速影响规律 |
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刘刚1,2,张淇1,2,滕厚兴1,2,卢兴国1,2,陈雷1,2,梁从富3,史培玉4
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(1.中国石油大学储运与建筑工程学院,山东青岛 266580;2.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;3.中国石油塔里木油田公司,新疆库尔勒 841000;4.中国石化胜利油田分公司油气集输总厂,山东东营 257000)
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| 摘要: |
| 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。 |
| 关键词: 含蜡原油 结构强度 超声波速 超声衰减 |
| DOI：10.3969/j.issn.1673-5005.2018.01.016 |
| 分类号:TE832.3 |
| 文献标识码:A |
| 基金项目:国家自然科学基金项目（51604295，51774315）；中央高校基本科研业务费专项（14CX02107A） |
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| Influence of gelled crude oil structure on ultrasonic velocity |
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LIU Gang1,2, ZHANG Qi1,2, TENG Houxing1,2, LU Xingguo1,2, CHEN Lei1,2, LIANG Congfu3, SHI Peiyu4
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(1.College of Pipeline and Civil Engineering in China University of Petroleum, Qingdao 266580, China;2.Shandong Provincial Key Laboratory of Oil and Gas Storage & Transportation Safety in China University of Petroleum, Qingdao 266580, China;3.PetroChina Trim Oilfield Company, Korla 841000, China;4.Oil and Gas Gathering Central Plant, SINOPEC Shengli Oilfield Company, Dongying 257000, China)
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| Abstract: |
| 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. |
| Key words: waxy crude oil structural strength ultrasonic velocity ultrasonic attenuation |
