Premium
A Reservoir/Wellbore‐Coupling Model for the Pressure, Flow Rate, and Optimum Perforation Distribution in Gas Wells
Author(s) -
Hu Jiancheng
Publication year - 2013
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201300096
Subject(s) - inflow , wellbore , perforation , pressure drop , petroleum engineering , geology , mechanics , flow (mathematics) , drawdown (hydrology) , coupling (piping) , geotechnical engineering , materials science , aquifer , physics , groundwater , punching , metallurgy
Due to the variation in pressure drawdown along a well, pressure drop can occur in a vertical well. Accurate prediction of the inflow performance for perforated vertical wells is of great significance to reservoir analysis and perforation optimization. Under steady‐state inflow, a reservoir/wellbore‐coupling model is proposed that combines a numerical reservoir model and a semianalytical wellbore model. One type of optimization problem is also established that considers the effects of perforation density on the productivity of a vertical well, for which the vertical‐well production is treated as an objective function. A number of experiments are presented demonstrating how the model could be used to obtain the optimum perforation distribution for infinite‐conductivity and finite‐conductivity wells.