The response of electromagnetic propagation measurement-while-drilling tools employing tilted coils in cylindrically stratified media was simulated based on an analytical formulation, and the formulation was solved via recursive matrix algorithm. The effects of the metal drill collar, the coil's tilting angle and borehole were analyzed using the provided formulation, and the feature of the coil's radial investigation was also analyzed. The computed results show that the effect on phase difference and amplitude ratio produced by the metal drill collar can be regarded as stable whether the coils are tilted or not. The change of the receiver coil's tilting angle has little effect on phase difference when the transmitter coil's tilting angle is 0? whether the formation conductivity is high or low. But the change of the receiver coil's tilting angle has complex effect on phase difference and amplitude ratio when the transmitter coil's tilting angle is not 0? The level of effect on the coils' response by the borehole is different for different tilting angles, and the borehole's effect is the minimum when the coils' tilting angle is 0? There exists difference for the relation between the received signal and the radius of invasion when the coils' tilting angles are different, and the relation is most complicated when the transmitter coil's tilting angle has the same sign with the receiver coil's tilting angle.%基于解析表达方式模拟柱状成层介质中含倾斜线圈电磁波传播随钻测量仪器的响应,并采用递推矩阵算法求解.利用解析式分析金属钻铤、线圈倾角和井眼的影响规律,并对线圈系的径向探测特性进行分析.计算结果表明:无论线圈倾斜与否,金属钻铤对相位差和幅度比的影响均可看作恒定；无论地层电导率是高还是低,当发射线圈倾角为0°时,接收线圈倾角的变化对相位差没有明显影响,当发射线圈倾角不等于0°时,接收线圈倾角的变化对相位差和幅度比产生复杂的影响；井眼对具有不同倾角线圈系响应的影响程度不同,线圈系倾角为0°时影响最小；具有不同倾角线圈系的信号随侵入半径变化的规律存在差别,当发射线圈与接收线圈的倾角相同时接收信号随侵入半径变化的规律最复杂.
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