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摘要
In order to investigate the dynamic relationship between fault and fluid flow, the comparison and correlation analysis for wave velocity and attenuation of S- and (S-L)-tectonites as well as the original rocks with microscopic pore structure parameters including porosity et al. were done. Wave velocity (V) and quality factor (Q) were measured by the ultrasonic method. S- and (S-L) -tectonites are obviously anisotropic. Compared with their original rocks, the V, Q and permeability are greater in parallel direction with foliation, and usually less perpendicular to it. The direction with minimal V and Q (viz. perpendicular direction to foliation) in S- and (S-L)-tectonites is the best for fluid to seal, on the contrary it is the best to flow. V is negatively linearly correlated with porosity and positively correlated with gas column height and breakthrough pressure, so does Q. While V and Q of tensile fault breccia, which is not obviously anisotropic, are less than those of original rocks, and the permeable capability is greater.
