摘要
着重叙述地震沉积微相研究的基本方法，包括①自然电位测井曲线的富氏谱分析，提供了进一步研究自然电位曲线的另一种手段；②由瞬时速度的基本概念出发，利用Ｖ进行了较稳定砂层的横向预测研究；③薄互层的层速度是微相研究的基础，提出了计算薄层层速度的方法（ＷＭＯＣＢ公式），详细研究了其误差，得出关于误差分布的一系列有益的结论；④利用模式识别技术建立了地震沉积微相判别系统，对实际资料的试算表明该系统是可靠的。
The paper mainly discusses several basic methods about research ofseismic sedimentary microfacies.①Fourier spectrum analysis of SP well logs providesanother method for further study of SP logs.②The transverse prediction os stable sandlayer is completed by the application of instantaneous velocity.③Since the intervalvelocity of thin interbedding is fundamental to the microfaciea research a computationfrmula of the interval velocity of thin interbedding is put forward. The error has beenstudied in detail with a seriea of conclusions about error distributon.④The system ofseismic sedimentary microfacies is set up through pattern recognition. Field dataprocessing indicates the reliability of the system.
关键词
地震
沉积微相
陆相
薄互层
谱分析
seismic sedimentary microfacies, pattern recognition ,weighted methodof complentary bed,spectrum analysis
