1) well Aiding-3
井眼扩径
3) reaming of hole
扩大井眼
4) overgauge hole
超径井眼
5) hole shrinkage
井眼缩径
1.
Serious hole shrinkage often occurs during drilling, which leads to the instability of borehole, the drill gets stuck and the annular tubes be pressed to break, which brings huge economic loss to the drilling.
在钻井过程中,钻开盐膏层后,原地层中地应力的相对平衡状态被打破,在井璧岩石上产生了较强的应力集中,在横向挤压力的作用下,盐膏层发生蠕动和变形,向井中滑移和流动,导致井眼缩径和失稳。
6) hole enlargement
井径扩大
1.
At the same time , hole enlargement is a disadvantage of underbalanced drilling, it has a greater adverse impact on Cementing and completion of the well .
但是欠平衡钻井也存在井径扩大的缺点,对固井和完井产生较大的不利影响。
补充资料：井径
1.田间小路。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条