1) well bore shrinkage
井眼收缩
2) 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。
3) tight hole
井径缩小的井眼
4) undergauging deformation of horizontal hole
井眼缩径变形
5) closure rate
油井断面收缩
6) wellbore
井眼
1.
The currently used methods for calculating gas injection rate during gas drilling all take the temperature of natural formation at the same depth as the temperature of the annulus fluid,without considering the heat exchange occurred between the wellbore fluid and the formation.
目前关于气体钻井时所需注气量的计算方法均是将环空流体的温度取同一深度的自然地层温度来进行计算,没有考虑井眼内流体与地层进行换热的影响,这必然会带来误差。
补充资料：眼嵌缩腮
1.形容面孔瘦削。
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