The system collects the magnetic memory signals liberated from the stress concentration zone of the in-use borehole casing 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。
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。
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.
水泥只在套管或井眼环形空间的某一面的通道内流动的现象，因而不能在所有的径向上提供充分的水力隔离层。
The problems of low drilling efficiency and low core recovery due to borehole collapse were solved with pulling in casing while drilling through using combined BHA with casing.
采用组合钻具进行跟管钻进，通过随钻跟入的套管保护孔壁，解决因钻孔垮塌导致钻探效率和岩心采取率低等技术难题。
Based on comparison of acoustic data logged in different conditions of cementation, casing and borehole, the applicable condition and limitation of through-casing acoustic logging are summarized.
对比了在不同水泥胶结质量、套管状况和井眼条件下的套管井与裸眼井声波测井资料，归纳出了过套管声波测井的使用条件和局限性。
Downhole video logging technique captures borehole images by downhole camera and can be applied to well casing inspection, downhole fishing, downhole completion quality inspection, etc.
井下视频成像测井利用井下摄像头获取井眼实时图像信息，可用于套管检测、落物打捞、井下作业质量检查等。
The effects of casing diameter on acoustic log in cased-borehole at free pipe situation are investigated with finite element method (FEM).
用有限元方法研究了自由套管井中不同直径的套管对声波测井的影响。
An inexact term describing a borehole (and associated casing program) significantly smaller than a standard approach, commonly a wellbore less than 6 in. in diameter.
描述比标准方法钻进的井眼尺寸大大缩小的井眼(与套管程序有关)的一种不很精确的术语，通常井眼直径小于6英寸。
The material used to permanently seal annular Spaces between casing and borehole walls.
用于永久封隔套管和井壁之间的环型空间的材料。
A continuous 360-degree annular space around casing allows cement to completely seal the casing to the borehole wall.
围绕套管的四周360度的环型空间允许水泥完全能够密封套管与井壁。
A kind of device which can keep the casing at the center of borehole and can also generate helical flow of cement slurry, which is the Spring Whirlflow casing Centralizer, is presented in this paper.
提供了一种既能保证套管居中，又能产生水泥浆环空螺旋流的套管弹性旋流扶正器。
The tool can provide us the 3D borehole wall images reflecting visual and accurate casing deformation, corrosion and faults.
该技术可提供井壁立体图，直观准确地反映套管状况，如套管变形、腐蚀穿孔和错断等。
The tool can provide us the 3D borehole wall images reflecting visual and accurate casing deformation, corrosion and faults.
该技术可提供井壁立体图，直观准确地反映套管状况，如套管变形、腐蚀穿孔和错断等。
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