Effect of an invaded zone on pressure-transient data from multiprobe and packer-probe wireline formation testers


Gok I., Onur M., Hegeman P., Kuchuk F.

SPE RESERVOIR EVALUATION & ENGINEERING, vol.9, no.1, pp.39-49, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 9 Issue: 1
  • Publication Date: 2006
  • Doi Number: 10.2118/84093-pa
  • Title of Journal : SPE RESERVOIR EVALUATION & ENGINEERING
  • Page Numbers: pp.39-49

Abstract

This paper examines the effect of a mud-filtrate-invaded zone on pressure transients from multiprobe/packer-probe wireline formation testers (WFTs). Invasion zones are modeled as composite zones concentric with the wellbore that have different rock and fluid properties (permeability, porosity, viscosity, and compressibility) from those of the native uninvaded formation.