| 本文已被：浏览次 下载次 |
码上扫一扫！ |
|
|
|
| Influence of gelled crude oil structure on ultrasonic velocity |
|
LIU Gang1,2, ZHANG Qi1,2, TENG Houxing1,2, LU Xingguo1,2, CHEN Lei1,2, LIANG Congfu3, SHI Peiyu4
|
|
(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)
|
| 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 |
|
|