Effect of flow from perforations on two-phase flow: implications for production logging Conference Paper uri icon

abstract

  • The phenomenon of a dense phase (water) entering through perforations into a stream of a less dense phase (gas or oil) has been examined in a model wellbore. When water entered a gas stream, some of the water fell through the gas stream to occupy a portion of the wellbore below the perforations for all conditions tested and anomalous pressure behavior was observed in the region of the perforations. In the oil-water tests, all of the water was swept upwards by the oil only at the highest oil flow rate (5000 b/d) and lowest water flow rate (50 b/d) with the pipe vertical. The deleterious effect of dense phase fallback on production log interpretation is demonstrated.

published proceedings

  • Society of Petroleum Engineers of AIME, (Paper) SPE

author list (cited authors)

  • Zhu, D., & Hill, A. D.

complete list of authors

  • Zhu, D||Hill, AD

publication date

  • December 1988