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Chapter from:
AAPG Memoir 71 : Reservoir Characterization-Recent Advances
Edited by Richard A. Schatzinger and John F. Jordan
Copyright 1999 by The American Association of Petroleum Geologists. All rights reserved.
Memoir 71, Chapter 11: Transient Productivity Index for Numerical Well Test Simulations , by G. Blanc, D. Y. Ding, A. Ene, T. Estebenet, and D. Rahon , Pages 163 - 174

Chapter 11

Transient Productivity Index for Numerical Well Test Simulations

 G. Blanc
D. Y. Ding
A. Ene
T. Estebenet
D. Rahon
Institute Francais du Petrole
Pau, France

ABSTRACT

The most difficult aspect of numerical simulation of well tests is the treatment of the bottom-hole flowing (BHF) pressure. In full-field simulations, this pressure is derived from the well-block pressure (WBP) using a numerical productivity index that accounts for the grid size and permeability, and for the well completion. This productivity index is calculated assuming a pseudo-steady-state flow regime in the vicinity of the well and is therefore constant during the well production period.

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