Abstract：Based on Biot two-phase medium theory and three kinds of hydrate deposition mode (that is hydrate is a part of liquid,hydrate is a part of solid frame and hydrate cement is on the contacted face of solid grain ),the paper studied the changing law of velocities of fast P-wave,slow P-wave,S-wave and attenuation with frequency for hydrate-bearing formation under the conditions of dissipation and non-dissipation,compared the calculated results for above-mentioned three models with that of the formation without hydrate and pointed out that the third model has significant different characters from other two models in variation of velocity and attenuation with frequency,mainly showing as the reliance on frequency.We can qualitatively divided the third model from the other two models according to the character.
张聿文, 刘学伟, 金玉洁. 含天然气水合物地层的速度和衰减研究[J]. 石油地球物理勘探, 2004, 39(2): 205-214.
Zhang Yu-wen, Liu Xue-wei, Jin Yu-jie. Study of velocity and attenuation for gas-bearing hydrate formation. OGP, 2004, 39(2): 205-214.
