Abstract
When S‐wave velocity is absent, approximate Gassmann equation using P‐wave modulus is recommended by Mavko (1995) to calculate the fluid saturation effects. Using both lab data and log data, our study shows that the approximate Gassmann equation might introduce significant error in fluid saturation effect prediction except for unconsolidated rocks. Using S‐wave velocity estimated by existing techniques, with same input parameters, the exact Gassmann equation should provide more reliable estimation of fluid saturation effect than that predicted by approximate Gassmann equation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
