The name is absent



Chapter 3

self-diffusion in isotropic, isothermal media during the diffusion time ∆pl:

<x≈√2(x2f2=2√DΔ                               [3.29]

Here <x2>ιz2 is root-mean-square displacement. D is diffusivity.

The minimum drop size dmi∏ that is measurable from PGSE data can be
expressed as 15j:

√ =(1752-r-?---)1/4, A = I-R (a = d ■ ∕2,δ=δ )        [3.30]

m'n v T2g3<^ / ’           sp× mm ’     max /           p-,.wj

/ ð ½nax

Here δmaχ is the largest magnetic gradient duration can be used in the

measurement (usually δma× = 0.2Δ). Plausible values for Λ are 0.01 ≤λ ≤0.05.

3.3.3. Drop size determination of diluted bitumen emulsion

For diluted bitumen emulsion, the total attenuation for the emulsion can be
written as:

r = M 0iι (g > 0) +M emul (g > 0)+Mwater (g > 0)                         1

Moil{g = ^ + Memul{g = Q') + Mwater{g = Q)                        L ∙ J

Subscripts emul, oil and water correspond to emulsified water, oil and bulk
water phases.

n τz^0,∕(g>°) R ^Mem,Ag>Q) R __ MwatAg > Q)      Γ3 201

0i, Moil{g = oy emul Memul(g = oy waler Mwater(g = 0)         l ■ j

Substituting Eq. [3.20] in Eq. [3.19],

r _ MqU (g — 0)Roil l Memul (g — 0)Remuι ɪ Mwater (g — Rwaler           [321]

[∑J∏U     [∑J∏U [∑Λ∕]srt           '

49



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