针对单道超声反射式水泥胶结测井，从理论方法上研究如何从一维反射资料反演第一界面窜槽时水层的厚度。
Thickness reversion method of water layer from one dimension reflective data in ultrasonic reflective cement bond logging is theoretically studied when the first interface is bad bonded.
本文主要讨论圆形回线发射源情形，编制出相应的近似反演程序，并对一维层状理论模型和实测资料进行反演试验。
We discussed the case of a circular transmitting loop, and developed a corresponding approximate inversion program which has been tested for 1 D layered Earth models and real data.
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