title: Two-dimensional NMR of diffusion systems.
abstract: We consider diffusion in porous media with well-connected pore space for which isolated-pore models are insufficient. Explicit pore-to-pore exchange parameters were introduced in recent 2D NMR experiments. However, such parameters capture only certain aspects of the interpore spin dynamic which, for single-fluid saturated media, are wholly determined by diffusion. Here, we develop a theoretical approach suitable for a quantitative description of such 2D NMR taking a full account of the underlying diffusion modes. We use simple models of one pore and two coupled pores to demonstrate the rich behavior of 2D NMR.
authors.affiliation: Schlumberger-Doll Research, 1 Hampshire Street, Cambridge, Massachusetts 02139, USA.
authors.forename: Yi-Qiao
authors.initials: YQ
authors.lastname: Song
authors.forename: Lukasz
authors.initials: L
authors.lastname: Zielinski
authors.forename: Seungoh
authors.initials: S
authors.lastname: Ryu