1
2
3
4
5
6
7
8
Auxiliary material for
a Faculty
9
Southampton, United Kingdom. 1 Present Address: Fugro GeoConsulting Limited,
10
Wallingford, Oxfordshire, United Kingdom. *2Present address and corresponding
11
author: Dept of Civil Engineering, University of Calgary, Calgary, AB, CANADA, T2N
12
1N4, Tel:+1.403.210.9618, E-mail: japriest@ucalgary.ca
MEASUREMENTS OF THE CHANGING WAVE VELOCITIES OF SAND DURING
THE FORMATION AND DISSOCIATION OF DISSEMINATED METHANE
HYDRATE
a1
Sultaniya, A.K , Priest, J.A.*a2 & Clayton, C.R.I.a
of Engineering and the Environment, Southampton University,
13
14
INTRODUCTION
15
This auxiliary material (files ts01-ts08) contains the data used in the preparation of
16
Figures 2, 4-10, respectively. The data contained herein contains experimental
17
results on hydrate-bearing sands carried out by the authors, and theoretical
18
calculations derived from the data.
19
20
1. 2014JB011386 file S1.xlsx. data for Figure 2.
21
1.1 Column “Excitation frequency (Hz)”. Excitation frequency during RC test.
22
1.2 Column “accelerometer output (V)”. Voltage output from accelerometer during
23
RC Test (V)
24
25
2. 2014JB011386 file S2.xlsx. data for Figure 4.
26
2.1 Column “time (h)”. time from start of hydrate formation stage.
27
2.2 Column “sample temp (oC). measured temperature of sample during formation
28
stage.
29
30
3. 2014JB011386 file S3.xlsx. data for Figure 5.
31
3.1 Column “time (h)”. time from start of hydrate formation stage.
32
3.2 Column “sample temp (oC). measured temperature of sample during formation
33
stage.
34
3.3 Column “Vs (m/s)”. shear wave velocity measured.
35
3.4 Column “Vflex (m/s)”. flexural wave velocity measured.
36
37
4. 2014JB011386 file S4.xlsx. data for Figure 6a & 6b.
38
4.1 Column “time (h)”. time from start of hydrate formation stage.
39
4.2 Column “sample temp (oC). measured temperature of sample during formation
40
stage.
41
4.3 Column “Vs (m/s)”. measured shear wave velocity from resonant column test.
42
4.4 Column “Vflex (m/s)”. measured flexural wave velocity from resonant column
43
test.
44
4.5 Column “measured pore pressure (MPa)”. Pore pressure of sample measured
45
during formation stage.
46
4.6 Column “Predicted pore pressure (MPa)”. Pore pressure predicted from Peng-
47
Robinson equation based on measured sample tempearture during formation stage.
48
4.7 Column “% of total hydrate content”. Calculated volume of hydrate formed
49
within the sample during the hydrate formation stage.
50
51
5. 2014JB011386 file S5.xlsx. data for Figure 7a & 7b for five different samples.
52
5.1 Column “time (h)”, time from start of hydrate formation stage.
53
5.2 Column “Vs (m/s)”, measured shear wave velocity from resonant column test.
54
5.3 Column “Vflex (m/s)”. measured flexural wave velocity from resonant column
55
test.
56
6. 2014JB011386 file S6.xlsx. data for Figure 8.
57
6.1 Column “% of total hydrate content”. Calculated percentage of total hydrate
58
volume formed within the sample during the hydrate formation stage.
59
6.2 Column “Vs (m/s)”. measured shear wave velocity from resonant column test.
60
6.3 Column “Vflex (m/s)”. measured flexural wave velocity from resonant column
61
test.
62
63
7. 2014JB011386 file S7.xlsx. data for Figure 9a and 9b for four different samples.
64
7.1 Column “% of total hydrate content”. Calculated percentage of total hydrate
65
volume formed within the sample during the hydrate formation stage.
66
7.2 Column “Vs (m/s)”, measured shear wave velocity from resonant column test.
67
7.3 Column “Vflex (m/s)”, measured flexural wave velocity from resonant column
68
test.
69
70
8. 2014JB011386 file S8.xlsx. data for Figure 10 for tested samples.
71
8.1 Column “hydrate sat ( %)”. Calculated hydrate saturation of pore space during
72
formation and dissociation for samples.
73
8.2 Column “Vs (m/s)”. measured shear wave velocity from resonant column test.
74
8.3 Column “Vflex (m/s)”. measured flexural wave velocity from resonant column
75
test.
76
8.4 Column “Sh of pore space”. Hydrate volume in pore space for calculating EMT
77
velocities
78
8.5 Column “pore filling”. Shear wave velocity for pore filling growth habit
79
8.6 Column “frame supporting”. Shear wave velocity for frame supporting growth
80
habit
81
8.7 Column “cementing”. Shear wave velocity for cementing growth habit
82
8.5 Column “0.75 cementing”. Shear wave velocity for 0.75* cementing growth habit
83