目前可以通过多种方式进行井径测量，但在随钻过程中，发现利用超声波进行井径测量速度快，而且信息量大。
Nowadays, there are many methods of caliper measuring. But during Drilling, we find that the apply of ultrasonic caliper can bring quicker speed as well as much information.
用于检查套管尺寸的多触点井径测量工具管串，采用结实的、安放位置经过优化的、弹簧加载的滚子及刚性臂扶正器进行居中。
The multifinger caliper tool string to be used for casing inspection was centralized using the combination of a strong, optimally placed, spring loaded roller and stiff arm centralizers.
着重分析了LVDT传感技术在井径仪测量系统中的应用，简要介绍了该仪器的现场应用效果。
It analyzes particularly LVDT transducer technology used in the measuring system of caliper gauge and further demonstrates effect of the gauge.
讨论了地层倾角和四臂井径测井的测量方法、资料处理以及识别崩落椭圆的原则，并列举出两个不同类型的实测例子。
The measuring method of four-arm diameter log, data processing and the principle of identification of breakout are discussed, and then two different kinds of examples are given.
最后，基于所有基础性的研究对非接触式超声波测量井径方法进行了实验。
At last, based on all fundamental researches, there is an experiment has been carry out for ultrasonic measure method.
它主要用于测量桩基钻孔的井径与井筒偏斜，也可用于帷幕、沉井井筒测量以及海岸工程、岩盐水溶开采的井下溶腔测量等。
Besides the diameter and inclination of pile foundation drill-hole, it can also be applied to other engineering, such as segmentation sinking, caisson sinking and halite mining by water-solution.
指井径仪测量的井眼直径与钻头尺寸之差。
The difference in the caliper-measured diameter of the well and the bit size.
与常规的井径仪相比，新型的多臂井径仪测量得到的信息更全面，资料的成像处理效果更直观。
Compared with other conventional caliper meters, data recorded by the new multi-arm caliper tool are more comprehensive and the imaging effects are also more visible.
文章介绍了32臂井径成像测井仪的结构、测量原理和技术特点。
Structure, measurement principle and technical features of the 32-finger imaging caliper logging unit were introduced in the paper.
课题研究的意义在于研制一种通过非接触方式测量井径的方法。
The significance of study on the subject is to develop a non-contact mode method of caliper logging.
感应测井中，由于井径变化引起测量电阻率突然变大的现象。
The effect of a sharp change in the borehole diameter, such as that caused by a cave or rugose hole, on an induction log.
感应测井中，由于井径变化引起测量电阻率突然变大的现象。
The effect of a sharp change in the borehole diameter, such as that caused by a cave or rugose hole, on an induction log.
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