井眼随钻接头在大斜度井钻井中的应用

Application of Drilling Joint in Drilling of High-angle Directional Well

井眼随钻接头是对破键器加以改进,增加了清砂和划眼功能,使性能更加完善,目的是解决大斜度井钻井中的键槽、沉砂和缩径问题。在钻具上适当加接井眼随钻接头,可有效地改善井眼质量,减少起下钻次数,提高钻井时效。这种接头已经在钻井中得到了广泛的应用,取得了很好的效果。

In order to solve the problems of groove,sand and shrinking in high-angle directional well,the drilling joint is improved on the older burst-groove-equipment,adding some functions of cleaning sand and ream.The property is more perfect.Fixing this joint on the drilling tools properly,the borehole qualities can be improved effectively,the times of pulling out of hole would be reduced,the drilling efficiency would be increased.This joint has applied widely in drilling field,and has gained good effect.