Therefore, based on the sedimentary characteristics of channel-sand, AVA/FVA features of thin inter-bedded channel-sand were studied in terms of detecting methods for reservoir fractures.

• 为此，基于河道砂体的沉积特点，借鉴储层裂缝的检测方法和技术，研究了薄互层河道砂体的振幅和频率随方位角的变化(AVA/FVA)规律。