感应测井是低频电磁场测井 ,不同的发射频率对感应测井响应的影响很大。这主要表现在传播效应、探测深度和接收信号的信噪比等方面 ,并且发射频率选择不当也会导致测量精度的降低。因此采用合适的发射频率是得到良好感应测井响应的一个重要因素。文章分析了感应测井响应与发射频率的关系 ,提出了选择发射频率的原则 Induction logging is a low-frequency electromagnetic field logging. Different emission frequencies have a great influence on the induction logging response. This is mainly reflected in the propagation effects, detection depth and signal-to-noise ratio of the received signal and so on, and improper selection of the transmission frequency will also lead to a decrease in measurement accuracy. Therefore, using a suitable transmit frequency is an important factor in achieving well-sensed logging responses. The paper analyzes the relationship between the induction logging response and the transmitting frequency, and proposes the principle of choosing the transmitting frequency