油井清蜡防蜡的新方法

New Methods for Paraffin Removal and Inhibition

介绍国外最近推出的井下油管注入阀清蜡、低压交流电加热清蜡和水润湿油管壁表面防蜡三种清蜡防蜡新方法及其现场使用情况,和常规清蜡防蜡方法相比,这些方法具有清蜡效果好,防蜡周期长,费用低等优点。

This article introduces three kinds of methods recently developed for paraffin removal and inhibition, i. c. paraffin removal by means of tubing injection valve or by heating with low-voltage alternating current and paraffin inhibition by water-wet surface process, and reports the field applications of these methods. Compared with the conventional means, these new methods offer better effect on paraffin removal and inhibition and reduce well maintenance cost.