深水探井溢流状态下井下复杂情况处理对策
China Chemical Trade(2017)
Abstract
深水钻井地层压力系数低,压力窗口很窄,中国南海某探井进行揭开高压层作业时发生溢流,及时关井后溢流得到控制,涌出的气体膨胀导致地层被压漏.采取循环压井及堵漏措施,压井过程中泥浆比重高了就漏,低了就会导致气体大量涌出,导致最终始终无法成功压井.采取打捞BHA里的中子源后,打水泥将地层进行封固,水泥塞以上钻具采取爆炸切割回收.
MoreAI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined