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Appendix A

Appendix A. NMR measurement parameters and procedures

NMR measurements are used to characterize emulsions by T2 relaxation
time distribution, restricted diffusion for drop size distribution, and vertical profile
of oil, dispersed water, and free water.

A.1. Default parameter settings

Instruction Manual of MARAN shows basic commands (e.g. tuning, sequence
loading and data saving) for NMR measurement. Default parameter settings for T2
distribution, restricted diffusion and MRI profile measurements are shown in the
script file set_prarameters.ris. All the script files can be found in the computer for
MARAN at the directory C:\Program Files∖Resonance∖RiNMR∖script.

Detailed instructions of parameters selection and data processing for T2
measurement can be found in Huang’s thesis (C. C. Huang, Estimation of rock
properties by NMR relaxation methods, MS Thesis, Rice University, Houston,
1997). Here default parameters of T2 measurement in script file were applied for
all diluted bitumen emulsion samples.

A.2. Parameters for NMR restricted diffusion measurement

In NMR restricted diffusion measurement, sequence parameters are diffusion
time Δ (D4 in script), duration of magnetic gradient pulse δ (D3 in script) and

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