在声波幅度测井曲线上，与储层相对应井段的声幅度值与储层流体压力系数或储层生产能力之间存在着线性关系。
There is a linear relationship between acoustic amplitude value of the reservoir interval and fluid pressure coefficient of the reservoir (or reservoir productivity).
凡压力系数曲线呈现“3”字形，则相对低压油层含油性较好。
When the pressure coefficient curve presents a "3" -shape, reservoirs with relatively low-pressure have higher oil potentials.
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