Physical Properties

Water content, hydrate formation, and viscosity data for natural gas and related fluids.

Water Content in Natural Gas (Saturated)

Temp (°F)	100 psia	500 psia	1000 psia	1500 psia
32	10	9	8	7
40	15	13	11	10
60	35	30	26	23
80	75	63	54	48
100	150	125	105	93
120	285	235	195	172
140	510	415	340	298

Hydrate Formation Temperature

Pressure (psia)	0.6 SG	0.7 SG	0.8 SG	0.9 SG
100	45	42	40	38
200	54	52	50	48
400	63	61	59	57
600	68	66	64	62
800	71	69	67	65
1000	73	71	69	67
1500	77	75	73	71

Gas Viscosity (Micropoises)

Temp (°F)	Methane	Ethane	Propane	n-Butane	Natural Gas (0.65 SG)
32	102	84	73	66	106
60	109	90	78	71	113
100	119	99	86	78	123
150	131	110	96	88	136
200	143	121	106	97	148
250	155	131	115	106	160