声波解堵综合配套技术研究

Comprehensive Supporting Technology for Plug Removal with Sonic Wave

孤岛油田为提高油井解堵成功率及油井产量,进行了声波解堵综合配套技术研究,设计并研制出了以流体动力为激发源并能产生高强低频振动的声波发生器。该声波发生器与混气水排液工艺相结合,可以达到解除地层堵塞、疏通液流通道、改善油层内部流体的渗流条件、增加油水井产能的目的,而且可以将堵塞物有效携带出井筒。该技术在胜利、辽河、大港等油田近160井次的应用表明,较之单纯混气排液工艺增液幅度达161％以上,取得了可观的经济效益。

In order to increase plug-removal success rate and oil output in Gudao Oiltield, the researches on comprehensive supporting technology of plug removal with sonic wave are done and an acoustic generator exci tated by hydraulic power is developed which can create high-amplitude and lower frequency vibration waves. The acoustic generator combined with aerated-water-discharge technique can bring plugs out of hole effectively and remove plugs in the formation, dredge fluid channels, improve percolating environment and increase oil well productivity. The applications of about 160 times in Shengli, Liaohe and Dagang, etc. show it can increase liquid discharge by over 161% when compared with aerated-liquid-discharge technique, and remarkable benefits are achieved.