孤岛地区水平井降摩阻技术研究

Friction decreasing technology in horizontal well of GUDAO area

胜利油田号称"地质大观园",断层纵横,构造复杂,采用常规的直井、定向井已很难实现挖潜增效。水平井钻井技术在胜利油田已经相对成熟,但因水平井数量的大幅增加,其事故发生率逐渐增大。水平井摩阻问题一直是导致井下复杂事故的直接原因,如何最大限度地降低水平井摩阻是减少水平井钻井事故的关键。本文结合胜利油田近两年来水平井钻井施工所遇到的摩阻现象及应对措施,以中28-平506井为例简要论述水平井降摩阻技术。

Shengli Oilfield is called as " Geological Grand View Park",there are many faults and complicated structure.It is very difficult to achieve target by the conventional vertical wells and directional wells.Horizontal well drilling technology have been relatively mature in Shengli Oilfield,but with the growth of the number of horizontal wells,the accident incidence increases.horizontal well friction is always the direct reason which cause the complicated accident underground.The key which can decrease the hori...