Monitoring fluid migration using in-situ nuclear magnetic resonance core flooding system integrated with fiber optic sensors: A proof of concept

Authors

Bruno da Silva Falcão, Edith Cowan University
Lionel Esteban
Ausama Giwelli
Yevhen Kovalyshen
Stephen Banks
Ahmed Al-Yaseri, Edith Cowan UniversityFollow
Alireza Keshavarz, Edith Cowan UniversityFollow
Stefan Iglauer, Edith Cowan UniversityFollow

Document Type

Conference Proceeding

Publication Title

E3S Web of Conferences

Volume

366

Publisher

EDP Sciences

School

School of Engineering

RAS ID

57864

Funders

Commonwealth Scientific and Industrial Research Organisation (CSIRO) / Edith Cowan University

Comments

da Silva Falcão, B., Esteban, L., Giwelli, A., Kovalyshen, Y., Banks, S., Al-Yaseri, A., ... & Iglauer, S. (2023, September). Monitoring fluid migration using in-situ nuclear magnetic resonance core flooding system integrated with fiber optic sensors: A proof of concept. In E3S Web of Conferences (Vol. 366, Article 01008). https://doi.org/10.1051/e3sconf/202336601008

Abstract

In-situ nuclear magnetic resonance (NMR) core flooding system has enabled researchers to monitor several rock properties such as porosity, pore size distribution, and fluid saturation along the tested samples with high resolutions and under reservoir conditions. However, spatially resolved rock strength/mechanical property alteration coupled to fluid migration/substitution remains poorly characterized. To this end, Fiber Bragg Grating (FBG) multiplex sensors were integrated with NMR core flooding system to monitor rock strength changes, or generally speaking, to observe hydro-mechanical-chemical coupling mechanisms during core flooding tests. In this study, we present a novel approach on how to conduct core flooding experiments, while simultaneously monitoring NMR and FBG strain response of the tested limestone plug. The NMR cell was modified to integrate FBG technology without impeding the NMR signal and core flooding high pressure/temperature capacity. A high spatial resolution optical fiber was attached onto the sample radial surface. The results show the successful association of NMR and FBG sensors to track any change at each stage of brine injection. The FBG is capable of measuring the rock strain variations induced by rock-fluid interactions during brine injection, allowing it to capture the fluid front location along with the sample and at a faster rate than the NMR.

DOI

10.1051/e3sconf/202336601008

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 License.