Related Experiment Video
Updated: Aug 2, 2026
In Situ Visualization of the Phase Behavior of Oil Samples Under Refinery Process Conditions
Published on: February 21, 2017
In situ NMR analysis of fluids contained in sedimentary rock
de Swiet TM1, Tomaselli, Hurlimann
1Department of Chemistry, E.O. Lawrence Berkeley National Laboratory, Berkeley, California, 94720, USA.
Abstract:
Limitations of resolution and absorption in standard chemical spectroscopic techniques have made it difficult to study fluids in sedimentary rocks. In this paper, we show that a chemical characterization of pore fluids may be obtained in situ by magic angle spinning (MAS) nuclear magnetic resonance (NMR), which is normally used for solid samples. 1H MAS-NMR spectra of water and crude oil in Berea sandstone show sufficient chemical shift resolution for a straightforward determination of the oil/water ratio. Copyright 1998 Academic Press.
