The system collects the magnetic memory signals liberated from the stress concentration zone of the in-use boreholecasing pipe, judges fast and correctly the state of the zone.
该检测系统可根据在役套管的应力集中区所产生的磁记忆信号快速、准确地判断套管的应力集中区状况。
2
With rational unit length and hinge rotating Angle, the flexible casing can be adaptable to the buckling borehole.
在合适的单元长度和铰链转角下，柔性套管可以较好地适应弯曲的井眼。
3
The condition in which cement flows in a channel only on some sides of the casing or borehole annulus, and thus does not provide adequate hydraulic isolation in all radial azimuths.