输油管道蜡沉积试验新技术及装备

New Technology and Equipment of Oil Pipeline Wax Deposition Experiments

介绍了输油管道蜡沉积试验的一些新技术和装备。在析蜡点测量方面,主要介绍了旋转黏度计法、偏光显微镜法和差示扫描量热法;在蜡沉积量测定方面,主要介绍了清管法、拆管法、压降法、传热法、液体置换与检测法、超声波法和激光测厚法;在蜡沉积物组分测定方面,主要介绍了气相色谱法和气相色谱-质谱联用技术。这些新技术和装备为解决蜡沉积试验和工程中的问题提供有效手段。

New technology and equipment of wax deposition experiments were represented in this article. In terms of determination of wax appearance temperature, the methods of using rotational viscometer,polarizing microscope and differential scanning calorimetry were described. Several other methods, namely, the pigging/removing-pipe method, pressure-drop method, heat-transfer method,liquid displacement-level detection method, ultrasonic-testing method and laser-based op tical method were also introduced as for the determination of wax deposit amount. Besides, the gas chromatography method and gas chromatography-mass spectrometry technology were represented for determining wax deposit components. In conclusion, the new technology and equipment have been considered an effect way to solve problems in the wax deposition experiments and practical projects.