Research Article
Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application
Table 2
Experimental data of heat generation in autogenic heat system.
| Concentration (mol/L) | Peak temperature (°C) | Temperature range (°C) | Experiment conditions |
| 0.5 | 63 | 4 | 100 mL 1.0 mol/L NaNO2 solution+100 mL 1.0 mol/L NH4Cl solution | 1.0 | 79 | 19 | 100 mL 2.0 mol/L NaNO2 solution+100 mL 2.0 mol/L NH4Cl solution | 1.5 | 127 | 67 | 100 mL 3.0 mol/L NaNO2 solution+100 mL 3.0 mol/L NH4Cl solution | 2.0 | 142 | 82 | 100 mL 4.0 mol/L NaNO2 solution+100 mL 4.0 mol/L NH4Cl solution | 2.5 | 157 | 97 | 100 mL 5.0 mol/L NaNO2 solution+100 mL 5.0 mol/L NH4Cl solution | 3.0 | 178 | 118 | 100 mL 6.0 mol/L NaNO2 solution+100 mL 6.0 mol/L NH4Cl solution |
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Note: catalyst concentration: 0.3%; base brine: 60°C.
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