西南石油大学学报(自然科学版) ›› 2000, Vol. 22 ›› Issue (2): 40-42.DOI: 10.3863/j.issn.1000-2634.2000.02.13

• 石油工程 • Previous Articles     Next Articles

STUDY ON THE DETERMINATION OF PRODUCTIVI TY INDEX AND FORMATION PRESSURE OF OIL WELLS

LI Chuan-liang1 KONG Xiang-yan1   

  1. University of Science and Technology of China
  • Received:1999-10-27 Revised:1900-01-01 Online:2000-04-20 Published:2000-04-20

Abstract:

In order to use well test information correctly, a theoretical study was conducted on the determination of productivity index(PI) and formation pressure from IPR curves. For pressure maintaining reservoir, because the external boundary pressure (Pe) keeps constant and the average pressure is a variable over the drainage area of the well, only Peand the productivity index Jo(Pe) of an oil well defined by Pecan be obtained from IPR curve. For depleting reservoir, because Peis a variable and the average pressure over the drainage are a keeps constant, only and the productivity index Jo(P) of an oil well defined by can be obtained from IPR curve.

Key words: productivity index, IPR, formation pressure

CLC Number: