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Next: APPENDIX A: THE SCHOENBERG-MUIR Up: Berryman: Stratified poroelastic rocks Previous: Undrained scenario ( )


This paper has presented a method of generalizing the elasticity-based methods of Backus (1962) and of Schoenberg and Muir (1989) to poroelastic systems, having additional dependencies on pore-pressures and pore-fluid physical properties. The approach taken is very close in spirit to that of Schoenberg and Muir (1989). The results are necessarily a little more complicated due to the presence of the pore-fluid, which permits different types of elastic-poroelastic behavior to occur than can appear in simply elastic stratified systems. The drained results agree completely with the elastic results, as they should. The undrained results permit studies of complicated layered poroelastic systems to proceed in an analytical framework that should be helpful for better understanding of a wide range of problems in oil and gas reservoir exploration.