relation: https://khub.utp.edu.my/scholars/12008/
title: An FBG magnetic sensor for oil flow monitoring in sandstone core
creator: Samavati, A.
creator: Samavati, Z.
creator: Ismail, A.F.
creator: Yahya, N.
creator: Othman, M.H.D.
creator: Rahman, M.A.
creator: Bakar, M.A.A.
creator: Koo, K.N.
creator: Salebi, M.F.
creator: Amiri, I.S.
description: Monitoring the oil movement using a non-contact optical fiber probe during enhanced oil recovery is a novel technique to increase the efficiency of the process by distinguishing the oil position in the reservoir. A partially unclad fiber Bragg grating (FBG) coated with Fe3O4 nanoparticles as a magnetic field sensor is experimentally demonstrated. A series of six FBGs reflecting different wavelengths are fixed on the surface of sandstone. Nanofluids containing magnetite nanoparticles and alkaline-surfactant-polymer are injected continuously in two separate steps into the sandstone, which is saturated with 20 oil and 80 brine. The chamber is equipped with a solenoid that acts as a magnetic field generator. The changes in the magnetic field strength depended on the FBG-solenoid distance and the density of localized injected nanoparticles near the FBGs leads to a shift of the reflected wavelength of each single FBG accordingly. The shift is caused by the interference of different propagating modes reflected from the core-cladding and cladding-magnetite layer interfaces. The intensity of the FBG spectra decreases by injecting the nanofluid and vice versa for surfactant injection. The sensor response time of �21 s confirms the high reliability and repeatability of the sensing scheme. Movement of oil along the sandstone alters the wavelength shift in the FBG spectra. © 2019 The Royal Society of Chemistry.
publisher: Royal Society of Chemistry
date: 2019
type: Article
type: PeerReviewed
identifier:   Samavati, A. and Samavati, Z. and Ismail, A.F. and Yahya, N. and Othman, M.H.D. and Rahman, M.A. and Bakar, M.A.A. and Koo, K.N. and Salebi, M.F. and Amiri, I.S.  (2019) An FBG magnetic sensor for oil flow monitoring in sandstone core.  RSC Advances, 9 (61).  pp. 35878-35886.  ISSN 20462069     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074811434&doi=10.1039%2fc9ra06859g&partnerID=40&md5=1c8eac7215737378c89c0b54b271720c
relation: 10.1039/c9ra06859g
identifier: 10.1039/c9ra06859g