Kinetics of in situ combustion. SUPRI TR 91

Technical Report · Thu Jul 01 00:00:00 EDT 1993

DOI:https://doi.org/10.2172/10175378· OSTI ID:10175378

Mamora, D D; Ramey, Jr, H J; Brigham, W E; Castanier, L M

Oxidation kinetic experiments with various crude oil types show two reaction peaks at about 250{degree}C (482{degree}F) and 400{degree}C (725{degree}F). These experiments lead to the conclusion that the fuel during high temperature oxidation is an oxygenated hydrocarbon. A new oxidation reaction model has been developed which includes two partially-overlapping reactions: namely, low-temperature oxidation followed by high-temperature oxidation. For the fuel oxidation reaction, the new model includes the effects of sand grain size and the atomic hydrogen-carbon (H/C) and oxygen-carbon (O/C) ratios of the fuel. Results based on the new model are in good agreement with the experimental data. Methods have been developed to calculate the atomic H/C and O/C ratios. These methods consider the oxygen in the oxygenated fuel, and enable a direct comparison of the atomic H/C ratios obtained from kinetic and combustion tube experiments. The finding that the fuel in kinetic tube experiments is an oxygenated hydrocarbon indicates that oxidation reactions are different in kinetic and combustion tube experiments. A new experimental technique or method of analysis will be required to obtain kinetic parameters for oxidation reactions encountered in combustion tube experiments and field operations.

• Research Organization: Stanford Univ., CA (United States). Petroleum Research Inst.
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-90BC14600
• OSTI ID: 10175378
• Report Number(s): DOE/BC/14600-51; SUPRI-TR-91; ON: DE93000152
• Resource Relation: Other Information: PBD: Jul 1993
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
04 OIL SHALES AND TAR SANDS
OIL WELLS
IN-SITU COMBUSTION
CHEMICAL REACTION KINETICS
OXIDATION
BENCH-SCALE EXPERIMENTS
POROUS MATERIALS
PETROLEUM
THERMAL RECOVERY
CALORIMETRY
THERMAL GRAVIMETRIC ANALYSIS
OXYGEN
EXPERIMENTAL DATA
MATHEMATICAL MODELS
020300
040401
DRILLING AND PRODUCTION
IN SITU METHODS
TRUE AND MODIFIED