n137205SE Academic Article uri icon


  • This study presents an improved method of analyzing pressure transient tests in low-productivity gas wells. The method may be particularly applicable for closed-chamber drill steam test analysis and other short duration tests with large pressure drawdowns and long duration wellbore storage distortion. The improved analysis method is based on the recently-proposed pseudo-time concept; the paper shows that this clever intuitive idea has a sound theoretical basis and that it results in complete linearization of the basic flow equations for gas and thus rigorous applicability of flow solutions developed for oil wells (such as most of the commonly used type curves).

published proceedings

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

author list (cited authors)

  • Lee, W. J., & Holditch, S. A.

publication date

  • January 1, 1981 11:11 AM