Dynamic gas slippage: a unique dual-mechanism approach to the flow of gas in tight formations

Conference · Fri Dec 31 23:00:00 EST 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5954798

Ertekin, T; King, G R; Schwerer, F C

A mathematical formulation, applicable to both numeric simulation and transient well analysis, describing the flow of gas in very tight porous media has been developed. Unique to this formulation is the dual- mechanism transport of gas. In this formulation, gas is assumed to be traveling under the influence of 2 fields: a concentration field and a pressure field. Transport through the concentration field is a Knudsen flow process and is modeled with Fick's Law of diffusion. Transport through the pressure field is a laminar process and is modeled with Darcy's Law (inertial-turbulent effects are ignored). The combination of these 2 flow mechanisms rigorously yields a composition, pressure, and saturation dependent slippage factor. 21 references.

• OSTI ID: 5954798
• Report Number(s): CONF-8310121-
• Journal Information: Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE-12045; ISSN SEAPA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
DIFFUSION
FLOW MODELS
FLUID FLOW
GAS FLOW
GAS SATURATION
GEOLOGIC DEPOSITS
LAMINAR FLOW
MATHEMATICAL MODELS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NATURAL GAS WELLS
PERMEABILITY
RESERVOIR PRESSURE
RESOURCES
SATURATION
WELLS