Abstract：We made the experiment to find the relation between gas saturation and the ratio of head P wave amplitude in pure sandstone (or mudy sandstone) to head P wave amplitude in gas-saturated sandstone (mudy sandstone).The experiment result says that the attenuation of head P wave amplitude gets maximum when the gas saturation in sandstone is above 20%.Besides, the amplitude of head P wave is more sensitive to gas-bearing sandstone than the frequency and velocity.A method for indicating gas-bearing sand formation with the use of head P wave amplitude is put forward on the basis of the experiment result.
谭廷栋. 用纵波首波幅度识别砂岩气层的方法[J]. 石油地球物理勘探, 1989, 24(4): 422-430.
Tan Tingdong. Identification of gas-bearing sand formation using the amplitude of head P wave. OGP, 1989, 24(4): 422-430.
