与双感应测井类似的一种测井方法，用安装在钻铤中的电磁传播仪进行测量。

A log similar to a dual induction log but made by an electromagnetic propagation tool built into a drill collar.

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本网络图对SJD-801（83）双感应—八侧向测井仪进行了系统程序式的检查、维修排列，针对检查过程中出现的问题给出了大致的寻查方向和排除方法。

This is a flow chart for systematic technical review and accuracy checkof SJD-801 (83) Dual Induction-Lateral 8. It is an effective debugging tool.

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