Project Rulison gas flow analysis
An analysis of the well performance was attempted by fitting a simple model of the chimney, gas sands, and explosively created fracturing to the 2 experimentally measured variables, flow rate, and chimney pressure. The gas-flow calculations for various trial models were done by a finite difference solution to the nonlinear partial differential equation for radial Darcy flow. The TRUMP computer program was used to perform the numerical calculations. In principle, either the flow rate or the chimney pressure could be used as the independent variable in the calculations. In the present case, the flow rate was used as the independent variable, since chimney pressure measurements were not made until after the second flow period in early Nov. 1970. Furthermore, the formation pressure was not accurately known and, hence, was considered a variable parameter in the modeling process. The chimney pressure was assumed equal to the formation pressure at the beginning of the flow testing. The model consisted of a central zone, representing the chimney, surrounded by a number of concentric zones, representing the formation. The effect of explosive fracturing was simulated by increasing the permeability in the zones near the central zone.
- Research Organization:
- Calif Univ, Livermore
- OSTI ID:
- 5322765
- Journal Information:
- Trans. Am. Nucl. Soc.; (United States), Vol. 14:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GAS FLOW
COMPUTER CALCULATIONS
NATURAL GAS WELLS
EXPLOSIVE FRACTURING
PERFORMANCE
CALCULATION METHODS
COMPUTER CODES
FINITE DIFFERENCE METHOD
FLUID FLOW
NUCLEAR EXPLOSIONS
PERMEABILITY
POROSITY
PRESSURE DEPENDENCE
RESERVOIR ENGINEERING
RESERVOIR FLUIDS
RESERVOIR PRESSURE
RESERVOIR ROCK
RULISON EVENT
SIMULATION
WELL COMPLETION
WELL STIMULATION
COMMINUTION
ENGINEERING
EXPLOSIONS
FLUIDS
FRACTURING
ITERATIVE METHODS
MANDREL OPERATION
NUMERICAL SOLUTION
PLOWSHARE PROJECT
STIMULATION
UNDERGROUND EXPLOSIONS
WELLS
030300* - Natural Gas- Drilling
Production
& Processing