The position on a logging tool string that is used as the reference for depth measurements.
测井仪器串上用作深度测量参考的位置。
In wireline logging, the data rate can limit the logging speed or the number of tools in the tool string.
电缆式测井中，数据传输速率影响测井速度或者制约下井仪器串中的仪器数量。
The smallest diameter present in a wellbore through which a tool string must pass to enable access to the operating depth or zone of interest.
工具管柱要到达工作深度或有关层段所必须经过的在井筒中存在的最小直径。
The safety clamp prevents the tool string from being dropped downhole accidentally if the slips or elevators securing the string lose their grip.
如果卡紧管柱的卡瓦或吊卡失去了其抓力，则安全卡瓦可防止工具管柱意外地掉落井下。
The minimum restriction determines the maximum tool string outside diameter and may influence the configuration of the assembled tools or equipment.
井筒最小直径确定了工具管柱的最大外径，而且可能影响被安装工具或设备的配置。
In some cases, a ball or dart is plugged to block circulation through the tool string and enable the application of the release pressure.
在某些情况下，用一个球或镖进行封堵，以便将通过工具管柱的循环切断，并使得能施加释放压力。
With several logging tools in a tool string, the last readings will be at different depths, depending on the measure point of each measurement.
使用多种仪器组成的仪器串进行测量时，根据每种测量的测量点，最后读数出现在不同的深度记录上。
With several logging tools in a tool string, the first reading of each curve will be at a different depth, depending on the measure point of each tool.
使用组合仪器串时，每条曲线第一数据的深度不同，和每种仪器的测量点有关。
When operated, the circulation sub allows a higher circulation rate to be established by opening a path to the annulus in the top section of the tool string.
循环接头在工作时在工具管柱的上段打开通向环形空间的通路，于是能够建立较大的循环流量。
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.
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 minimum restriction should be considered in both running and retrieving modes if any increase in tool string outside diameter is likely, such as when perforating or when using inflatable packers.
如果工具管柱外径有可能增加（如在射孔或使用膨胀式封隔器时），则在下入工具管柱和起出工具管柱这两种情况都应考虑井筒最小直径。
The minimum restriction should be considered in both running and retrieving modes if any increase in tool string outside diameter is likely, such as when perforating or when using inflatable packers.
如果工具管柱外径有可能增加（如在射孔或使用膨胀式封隔器时），则在下入工具管柱和起出工具管柱这两种情况都应考虑井筒最小直径。
应用推荐