Liu Zhen1,2, Zhang Junhua1, Han Shuang1, Wu Tao1, Huang Guangtan1
1. School of Geoscience, China University of Petroleum (East China), Qingdao, Shandong 266555, China;
2. CNOOC Shenzhen Branch, Guangzhou, Guangdong 510240, China
Abstract：Nowadays, most of interbed multiple suppressing methods focus on layer related interbed multiples which are generated under a specific interface. Through theoretical derivation and modeling, we expand upon the concept of layer related interbed multiples and propose the concept of interbed multiples which are generated by interaction of a reflector and upper interfaces. And we name such internal multiple as lower layer related interbed multiple (LLRIM). In addition, we redefine the formula of the data-driven interbed multiple elimination method and propose the expression for predicting LLRIM. Test results on synthetic data prove the validity of the method.
