Physical Property Models of Gas Hydratebearing Sediments and AVA Character of Bottom Simulating Reflector
Authors:
Open Access
- 1 July 2002
- journal article
- research article
- Published by Wiley in Chinese Journal of Geophysics
- Vol. 45 (4) , 569-579
Abstract
Physical property models of gas hydrate‐bearing sediments and analysis of amplitude‐versus‐angle (AVA) character of bottom simulating reflector are studied. The relationships between elastic properties and gas hydrate/free gas concentration are presented based on such models as weighted time‐average and Wood's equation, seismic wave propagation in three phases effective medium and elastic modulus. The AVA character of different models is calculated and analyzed. The analysis of AVA character of BSR shows that different reflection coefficient values but similar configurations of AVA curves are given for different combinations of different concentrations of gas hydrate and free gas.Keywords
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