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本文对测井电缆的伸长问题作了初步探讨。在近几年研究工作的基础上给出了目前常用的几种测井电缆的有效拉断力，分析了影响电缆伸长的因素，给出了计算电缆卡点深度的方法以及相应的图版，对正确使用电缆提出了一些参考意见。
This paper made a preliminary discussion about the elongation of logging cable. Based on the research work in recent years, the available tension-breaking force of several commonly used logging cables is given. The factors affecting the cable elongation are analyzed. The methods of calculating the depth of the cable jamming and the corresponding plates are given. The correct use of the cable made some suggestions.