DYMNAMIC GAS SLIPPAGE: A ULNIQUE DUAL-MECHANISM APPROACH TO THE FLOW OF GAS IN TIGHT FORMATIONS.

Turgay Ertekin, Gregory R. King, Fred C. Schwerer

Research output: Contribution to journalArticle

227 Scopus citations

Abstract

A mathematical formulation, applicable to both numerical simulation and transient well analysis, that describes the flow of gas in very tight (k infinity less than 0. 1 md) porous media and includes a dual-mechanism transport of gas is developed. Gas is assumed to be traveling under the influence of a concentration field and a pressure field. Transport through the concentration field is a Kundsen 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 two flow mechanisms rigorously yields a composition-, pressure-, and saturation-dependent slippage factor.

Original languageEnglish (US)
Pages (from-to)43-52
Number of pages10
JournalSPE Formation Evaluation
Volume1
Issue number1
StatePublished - Feb 1 1986

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Process Chemistry and Technology

Cite this