A three-dimensional laboratory steam injection model allowing in situ saturation measurements. [Comparing steam injection and steam foam injection with nitrogen and without nitrogen]
The CT imaging technique together with temperature and pressure measurements were used to follow the steam propagation during steam and steam foam injection experiments in a three dimensional laboratory steam injection model. The advantages and disadvantages of different geometries were examined to find out which could best represent radial and gravity override flows and also fit the dimensions of the scanning field of the CT scanner. During experiments, steam was injected continuously at a constant rate into the water saturated model and CT scans were taken at six different cross sections of the model. Pressure and temperature data were collected with time at three different levels in the model. During steam injection experiments, the saturations obtained by CT matched well with the temperature data. That is, the steam override as observed by temperature data was also clearly seen on the CT pictures. During the runs where foam was present, the saturation distributions obtained from CT pictures showed a piston like displacement. However, the temperature distributions were different depending on the type of steam foam process used. The results clearly show that the pressure/temperature data alone are not sufficient to study steam foam in the presence of non-condensible gas.
- Research Organization:
- Stanford Univ., CA (United States). Petroleum Research Inst.
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-90BC14600
- OSTI ID:
- 7233795
- Report Number(s):
- DOE/BC/14600-33; SUPRI-TR-83; ON: DE92001059
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
POROUS MATERIALS
WATER SATURATION
STEAM INJECTION
BENCH-SCALE EXPERIMENTS
COMPUTERIZED TOMOGRAPHY
DRILL CORES
EXPERIMENTAL DATA
FOAMS
GAS INJECTION
MATHEMATICAL MODELS
NITROGEN
OIL WELLS
PETROLEUM
POROSITY
PRESSURE MEASUREMENT
TEMPERATURE DISTRIBUTION
TEMPERATURE MEASUREMENT
THERMAL RECOVERY
COLLOIDS
DATA
DIAGNOSTIC TECHNIQUES
DISPERSIONS
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
INFORMATION
MATERIALS
NONMETALS
NUMERICAL DATA
SATURATION
TOMOGRAPHY
WELLS
020300* - Petroleum- Drilling & Production