Non-darcy transient radial gas flow through porous media
Canadian researchers at the Univ. of Alberta and the Univ. of Calgary have developed a computer program to solve the nonlinear partial differential equations describing transient radial gas flow through porous media. Specifically, the program can handle 4 sets of boundary conditions encountered in a finite radial system. The program has been employed to obtain pressure distributions and mass fluxes as functions of time and position for the constant-terminal rate case and the constant-terminal pressure case, in porous media having different values of permeability, inertial-resistance coefficient, slip coefficient, and rock compressibility. Changes of gas properties with pressure were taken into account. Results indicate that each of these rock properties can, under certain conditions, appreciably affect the transient response. For instance, it was observed that slip, rather than being a laboratory curiosity, can affect the transient response in a typical tight reservoir.
- OSTI ID:
- 5067225
- Resource Relation:
- Conference: 48. annual fall meeting of the Society of Petroleum Engineers, Las Vegas, NV, USA, 30 Sep 1973; Related Information: SPE Paper 4595
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GAS FLOW
NATURAL GAS
POROUS MATERIALS
COMPRESSIBILITY
COMPUTER CODES
DIFFUSION
PERMEABILITY
PRESSURE GRADIENTS
ROCK MECHANICS
SLIP
ENERGY SOURCES
FLUID FLOW
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MATERIALS
MECHANICAL PROPERTIES
030200* - Natural Gas- Reserves
Geology
& Exploration