Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application

Table 6

The effect of ambient temperature on heat generation rate and thermal peak.

Ambient temperature: 60°C		Ambient temperature: 75°C		Ambient temperature: 85°C
Time (min)	Temperature (°C)	Time (min)	Temperature (°C)	Time (min)	Temperature (°C)
0	25 (indoor)	0	25 (indoor)	0	25 (indoor)
1	—	1	—	1	—
2	23	2	32	2	42
3	26	3	41	3	63
4	37	4	57	4	80
5	43	5	78	5	86
6	52	6	85	6	94
7	64	7	83	7	92
8	72	8		8
9	78	9		9
10	75	10		10
11		11		11

Concentration of system: 100 mL 2.0 mol/L NaNO₂ solution+100 mL 2.0 mol/L NH₄Cl solution catalyst: 1.0% HCl.