摘要
充气钻井技术是通过调节注入气量、控制井口回压,降低循环介质密度,形成欠平衡环境的新技术,这一技术能减少储层污染、避免地层漏失等钻井难题。对于裂缝发育的碳酸盐岩压力敏感及窄密度窗口储层,利用充气欠平衡钻井技术,能很好的解决钻井难题,对解决压力敏感、低压漏失钻井难题具有一定的指导意义,在TLM油田YM-X井得到了有效应用。
Aerated drilling is to create an underbalanced condition by way of adjusting the gas injection volume,controlling wellhead backpressure,and reducing circulating medium density. It can reduce reservoir contamination,and avoid loss into formations. For fracture-developed pressure-sensitive narrow-mud-window carbonate reservoirs,the aerated UBD technology can solve the drilling problems,can be used as a guide for drilling in pressure-sensitive low-pressure lost-circulation wells.Its application in Well YM-X in TLM oilfield was proved effective.
出处
《钻采工艺》
北大核心
2017年第3期16-18,8,共3页
Drilling & Production Technology
关键词
充气
欠平衡钻井
低压漏失井
塔里木油田
水平井
aerated
UBD
low-pressure lost-circulation well
Tarim oilfield
horizontal well
