Frequency-constraint strong reflection separation based on matching pursuit algorithm
Yanmei Xiong, Meng Wang, Bohua Zhu · 2024
The strong reflection separation method based on matching pursuit has achieved good results in practical applications. In this paper, we discuss the frequency optimization in matching pursuit algorithm of strong reflection separation method in detail to obtain better results. In general, we use the instantaneous frequency attribute in matching pursuit algorithm, which has big error for mixed frequency component of strong reflection and target weak reflection. So we propose the frequency-constraint strong reflection separation method based on matching pursuit algorithm. Frequency of the overlying strata can better describe the frequency feature of strong reflection without the influence of the target weak reflection. Model test and practical application show that this method can separate the strong reflection event more reasonably and effectively, and the underlying small scale fracture-cavity reservoir features are more obvious for well target design.