Highly compressible porous media flow near a wellbore: Effect of gas acceleration

Yan Jin, Kangping Chen, Mian Chen

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

A fundamental study on porous medium flow of a highly compressible gas near a wellbore is carried out. The effect of gas acceleration is assessed quantitatively. It is shown that gas acceleration induced by the converging flow introduces a quadratic drag on the flow; acceleration due to volumetric-expansion causes the pressure curve to steepen near the wellbore and the flow to become choked at high flow-rates. When the flow is choked, the pressure gradient at the wellbore wall becomes unbounded. It is also shown that for any given mass flow-rate, the well pressure predicted from the model considering acceleration effect is significantly below that calculated from the Darcy-Forchheimer model. Implications of these results to petroleum engineering are discussed.

Original languageEnglish (US)
Article number011301
JournalJournal of Fluids Engineering, Transactions of the ASME
Volume134
Issue number1
DOIs
StatePublished - Mar 7 2012

ASJC Scopus subject areas

  • Mechanical Engineering

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