Table 3. Experimental data for degassing of CH4-saturated water.
| Run#-sample# | Pressure (psi) |
Gas volume (mL) |
Water volume (mL) |
 13C
(CH4)(  PDB) |
Comments |
|---|---|---|---|---|---|
1-1 |
1040 |
-- |
-- |
-44.2 |
Gas out top |
1-2 |
1040 |
-- |
-- |
-43.8 |
Gas out top |
1-3 |
1040 |
10.1 |
22.9 |
-43.9 |
Water + gas |
1-4 |
1040 |
12.1 |
16.6 |
-44.2 |
Water + gas |
1-5 |
-- |
32 |
-- |
-44.2 |
Standard |
1-6 |
1040 |
8.2 |
21.8 |
-43.9 |
Water + gas |
1-7 |
1040 |
-- |
-- |
-43.1 |
Headspace gas |
1-8 |
1040 |
-- |
-- |
-44.4 |
Headspace gas |
1-9 |
216 |
-- |
-- |
-43.8 |
Headspace gas |
1-10 |
216 |
-- |
-- |
-44.6 |
Headspace gas |
2-1 |
1040 |
41 |
-- |
-44.1 |
Gas out top |
2-2 |
1040 |
46 |
-- |
-44.0 |
Gas out top |
2-3 |
1040 |
10 |
11 |
-43.6 |
Water + gas |
2-4 |
1040 |
6.5 |
24 |
-44.2 |
Water + gas |
2-5 |
-- |
29 |
-- |
-44.5 |
Standard |
2-6 |
1040 |
5.5 |
20 |
-43.9 |
Water + gas |
2-7 |
1040 |
4.5 |
15 |
-43.6 |
Water + gas |
2-8 |
1040 |
59 |
-- |
-43.7 |
Headspace gas |
2-10 |
210 |
49 |
-- |
-44.3 |
Headspace gas |
2-11 |
210 |
3 |
1.5 |
-42.7 |
Water + gas |
3-1 |
898 |
-- |
-- |
-43.0 |
Gas out top |
3-2 |
898 |
-- |
-- |
-44.4 |
Gas out top |
3-3 |
898 |
-- |
-- |
-43.8 |
Gas out top |
3-4 |
898 |
8.9 |
7.2 |
-43.7 |
Water + gas |
3-5 |
-- |
-- |
-- |
-43.9 |
Standard |
3-6 |
898 |
20 |
5.9 |
-44.0 |
Water + gas |
3-7 |
898 |
18 |
4.1 |
-44.0 |
Water + gas |
3-8 |
898 |
23 |
4.8 |
-44.0 |
Water + gas |
3-9 |
898 |
-- |
-- |
-43.1 |
Headspace gas |
3-10 |
898 |
-- |
-- |
-43.7 |
Headspace gas |
3-11 |
199 |
-- |
-- |
-44.5 |
Headspace gas |
3-12 |
199 |
19 |
3 |
-42.8 |
Water + gas |
3-13 |
199 |
19 |
3 |
-43.3 |
Water + gas |
Notes: For descriptions of terms in the Comments column, see caption for Figure 11. -- = samples for which volumes were not measured.