Abstract
The paper presents a quantitative NMR relaxometry technology for unconventional reservoir rock samples, assessing total organic matter and extractable bitumen/high-viscosity oil. The study uses core samples with a diameter of 8.5 mm and a height of 13.5 mm, but the technology can be scaled to standard 30 by 30 mm cores. This paper introduces a novel low-frequency (20 MHz) pulsed NMR relaxometry technique for real-time, quantitative analysis of rock samples, enabling precise monitoring of total organic content and amount of extractable bitumen in unconventional reservoir rocks. For the first time, the possibility of observing the transition of a part of the solid signal into the liquid phase using deuterated chloroform directly in a test tube with a core sample is presented and experimentally demonstrated.
