论文部分内容阅读
采取测井曲线重构技术,利用四尺度小波变换将能够良好反映火成岩岩性的伽马测井曲线与代表火成岩速度的声波测井曲线进行重构,得到拟声波曲线,并进行约束稀疏脉冲反演得到火成岩波阻抗体,为下一步速度建场奠定了良好的基础。通过哈拉哈塘地区X301等井的实例研究,有效地将波阻抗数据体转换为速度体,并对曲线重构前后反演精度进行对比分析,证明该方法能够提高火成岩岩性的识别能力,提高火成岩的速度建场精度。
Taking the logging curve reconstruction technique, a gamma-ray logging curve that can well reflect igneous rock lithology and an acoustic logging curve that represents the igneous rock velocity are reconstructed using the four-scale wavelet transform to obtain the pseudo-acoustic curve and the constrained sparse pulse inversion Play to igneous wave impedance body, for the next step to build a good foundation speed. Through the case study of X301 and other wells in Halahatang region, the wave impedance data body is effectively converted into the velocity body, and the inversion accuracy before and after the curve reconstruction is compared and analyzed. The results show that this method can improve the identification ability of igneous rock lithology, Improve the speed of igneous rock formation accuracy.