Abstract：The paper carried out the analysis and correlation of traditional pseudo-spectrum and improved staggered-grid pseudo-spectrum from theoretical method and cases,summarized the superiority of staggered-grid pseudo-spectrum method.The more prominent advantage of differential localization of staggered-grid pseudo-spectrum is showed by first-order differential computational case of pulse sequence;the correctness of staggered-grid pseudo-spectrum method is proved by 2-D acoustic wave computational case;the precision of the staggered-grid pseudo-spectrum method being higher than that of traditional pseudo-spectrum is proved by the computational case of elastic wave in non-homogeneous medium.Finally,the propagation issue of elastic wave in non-homogeneous fracture and cave reservoir is simulated by staggered-grid pseudo-spectrum method.
刘炯, 马坚伟, 杨慧珠, 巴晶. 缝洞型储层错格伪谱法模拟[J]. 石油地球物理勘探, 2008, 43(6): 723-727.
Liu Jiong, Ma Jian-wei, Yang Hui-zhu, Ba Jing. Staggered-grid pseudo-spectrum simulation of fracture and cave reservoir. OGP, 2008, 43(6): 723-727.
