Characterisation of the size and swelling kinetics of copolymer nano-spheres extracted from an emulsion

Journal article (2017)

Authors

N. Lenchenkov Reservoir Engineering - CEG
G. Glasbergen Shell Global Solutions International B.V.
C.P.J.W. van Kruijsdijk Shell Global Solutions International B.V., Reservoir Engineering - CEG
M. Vulovic ImPhys/Quantitative Imaging
Erik Bos Leiden University Medical Center
Roman I. Koning Leiden University Medical Center
Flavia Cassiola Shell Global Solutions International B.V.
Research Group
Reservoir Engineering (CEG) (TU Delft)
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Published Date

2017

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Reservoir Engineering

Abstract

The size distribution and swelling kinetics of copolymer nano-spheres extracted from an W/O emulsion was studied with dynamic light scattering (DLS) and transmission electron microscopy (TEM). TEM results were compared against DLS results. It was demonstrated that the size distribution for agglomerates (clusters) of particles match well with the size distribution obtained from DLS. Hence, less time consuming DLS tests can be used for the estimation of the size of nano-spheres in the future. Next, a novel procedure for the study of agglomeration and swelling rates separately with TEM was designed. The results of the study revealed that the spheres agglomerate and swell over time. The kinetics of the agllomeration is used for a population balance model to predict the size of spheres over time. This approach helps to understand how well the spheres can propagate in an oil reservoir over time.

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