环空电缆试井技术在水平井压裂中的应用

Annulus Cable Testing Technology in Horizontal Well Fracturing

针对当前试井现场测试工艺及解释方法无法满足对水平井的压裂效果进行准确评价的问题,采用环空电缆试井技术利用井口吊装、无线传输等现场测试工艺和在解释评价中运用现代产量递减分析方法,并使用Blasinggame、双对数图版进行拟合。通过这些方法可随时对监测井的井底压力、温度进行远程实时监测,实现数据上传、解释分析、成果外报同步进行,并最终计算出试井产能得到了满意的解释结果。

The current field test process and interpretation method of well testing cannot meet the need of accurately evaluation of the fracturing effect of horizontal wells.The annulus cable well testing technology utilizes the wellhead hoisting,wireless transmission field test process and the modern production decline analysis method in the interpretation evaluation,and uses Blasinggame,double logarithmic plate for fitting.Through these methods,the real-time monitoring of the bottom hole pressure and temperature of the well can be carried out at any time,the data uploading,interpretation analysis and results reporting are carried out simultaneously,and the well testing productivity is finally calculated.