利用声幅曲线预测储层产能

Prediction of Reservoir Productivity with Acoustic Amplitude Log

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。把数据输入计算机中进行线性回归处理,得到了储层流体压力系数R_p。储层流体压力系数R_p越大,储层声幅度值T越大,生产能力也越大;反之,T越小,R_p也越小,储层生产能力就越小。运用固井后套管内声波幅度测井曲线,可以判断储层生产能力。提出的方法已在生产中应用,并获得了较高的经济效益。

There is a linear relationship between acoustic amplitude value of the reservoir interval and fluid pressure coefficient of the reservoir (or reservoir productivity). Through linear regression with computer, reservoir pressure coefficient R_p is obtained. The bigger the fluid pressure coefficient(R_p)is, the bigger the acoustic amplitude(T)and the bigger the reservoir productivity will be. On the contrary, The smaller the acoustic amplitude is, the smaller the fluid pressure coefficient and the smaller the reservoir productivity will be, In a word, this paper describes an approach which determines reservoir productivity with (?)oustic amplitude log run in casing after cementation. High economic returns have been achieved from its application in produdtion.