Feasibility study of the in-situ combustion process using TGA/DSC techniques
The influence of reservoir rock on the in-situ combustion process has been recognized by many investigators as an important part of the process. Several experimental studies have shown the effects of reservoir rock on the in-situ combustion process. However, all the available screening criteria neglect this important and decisive criterion. This paper describes how the reservoir rock affects the minimum oil content necessary for the self-sustained combustion, which is introduced as a new criterion for the selection of suitable reservoirs for the process. Differential Scanning Calorimetry (DSC) was employed to determine the heat value of the oil in the presence of the reservoir rock. The minimum temperature required for the total consumption of the fuel was obtained by the use of Thermogravimetric Analysis (TGA) and DSC. The minimum amount of oil necessary to sustain the combustion was calculated from these two parameters and compared with the oil saturation of the reservoir. Reservoirs with oil saturations above this minimum value were considered feasible. In-situ combustion tube experiments performed on actual reservoir rocks obtained from Kansas fields confirmed the validity of the prediction.
- Research Organization:
- Univ. of Kansas
- OSTI ID:
- 6605527
- Report Number(s):
- CONF-8304162-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE/DOE 12678; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
BENCH-SCALE EXPERIMENTS
CALORIMETRY
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
COMBUSTION
ENERGY SOURCES
ENHANCED RECOVERY
ENTHALPY
FEASIBILITY STUDIES
FLUIDS
FORECASTING
FOSSIL FUELS
FUELS
GRAVIMETRIC ANALYSIS
IN-SITU COMBUSTION
IN-SITU PROCESSING
OIL SATURATION
OIL WELLS
OXIDATION
PETROLEUM
PHYSICAL PROPERTIES
PROCESSING
QUANTITATIVE CHEMICAL ANALYSIS
RECOVERY
RESERVOIR FLUIDS
RESERVOIR ROCK
SATURATION
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
THERMAL RECOVERY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
WELLS