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由于分辨率的限制，声波水泥胶结评价测井（ＣＢＬ／ＶＤＬ）不可能解释评价厚度在３ｆｔ＊以下的未胶结层段。对于未胶结层段厚度在仪器纵向分辨率以下的薄层，在源距为３ｆｔ及５ｆｔ的声系所记录到的声幅曲线上的贡献是不同的。根据不同源距声系所记录到的声幅值的差异，可定量解释评价没有水泥胶结的薄层（其厚度小于仪器的纵向分辨率）。根据水泥胶结刻度井群中的实际测量结果，作出了未胶结层段厚度与源距为３ｆｔ及５ｆｔ的声系所记录到的声幅值差异的关系图版，根据这种关系图版对大庆油田２口井的固井质量重新进行解释评价
Due to resolution limitations, acoustic cement cementation evaluation logs (CBL / VDL) can not be interpreted to evaluate unbound layers below 3 ft * in thickness. For laminates with unbonded layer thickness below the longitudinal resolution of the instrument, the contributions on the sound-amplitude curves recorded for acoustic systems with 3-ft and 5-ft sources are different. Based on the differences in sound amplitude recorded by the acoustic systems at different origins, thin layers without cement cementation can be quantitatively evaluated (their thickness is less than the longitudinal resolution of the instrument). Based on the actual measurement results in the cement cementation well group, the relationship between the thickness of the uncured layer and the sound amplitude recorded by the acoustic system with the source distance of 3 ft and 5 ft was obtained. Based on this map, Wells in the cementing quality to re-explain the evaluation