摘要
随着油田进入开发后期 ,调整井的数量不断增加。而调整井具有地层压力系统复杂的特点 ,给固井施工带来很大难度。S1- 1井是具有钻进时液柱压力与地层漏失压力相接近特点的一口注水井。文中从理论和施工监测数据分析得出该井固井质量不合格的原因是同层吞吐现象所致 ,并总结提出了预防措施。
More and more adjustment wells will be drilled when the oilfield entered the later period of development. But the cementing operation is very difficult because of the complicated formation pressure system. The well S1-1 is a water injection well, which has the characteristic-close pressure between liquid column and formation leakage. In this paper, the cementing operation disqualificed factor is obtained from theory and operation data, which is the concurrence of swallowing and spiting at the same formation , and preventive measure is put forward as well.
出处
《钻采工艺》
CAS
2002年第6期14-15,共2页
Drilling & Production Technology
