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Article

A Novel Mathematical Model Considering Real Gas PVT Behavior to Estimate Inflow Performance Relationship of Gas Well Production

State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
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Author to whom correspondence should be addressed.
Academic Editor: Reza Rezaee
Energies 2021, 14(12), 3594; https://doi.org/10.3390/en14123594
Received: 16 May 2021 / Revised: 11 June 2021 / Accepted: 14 June 2021 / Published: 16 June 2021
(This article belongs to the Special Issue Development of Unconventional Reservoirs 2021)
Inflow performance relationship (IPR) is one of the most important methods for the analysis of the dynamic characteristics of gas reservoir production. The objective of this study was to develop a model to improve the accuracy of the IPR for evaluating and predicting the production of gas reservoirs. In this paper, a novel mathematical model, taking into account the real gas PVT behavior, is developed to accurately estimate the inflow performance relationship. By introducing a pseudo-pressure function and a real gas properties database, this model eliminates the error caused by the linearization method and improves the calculation accuracy. The results show that more than 90% of the energy in the flow field is consumed by inertial forces, which leads to significant high-velocity non-Darcy effects in the gas reservoir. The reservoir permeability, original reservoir pressure, stress sensitivity coefficient, and skin factor have a great impact on the inflow performance relationship of gas reservoir production. This model predicts gas IPR curves with excellent accuracy and high efficiency. The high-precision gas well inflow performance relationship lays a solid foundation for dynamic production analysis, rational proration, and intelligent development of the gas field. View Full-Text
Keywords: high-velocity non-Darcy flow; inflow performance relationship; real gas PVT behavior; non-linearization; stress sensitive high-velocity non-Darcy flow; inflow performance relationship; real gas PVT behavior; non-linearization; stress sensitive
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MDPI and ACS Style

Zhang, S.; Liu, H.; Wang, Y.; Sun, K.; Guo, Y. A Novel Mathematical Model Considering Real Gas PVT Behavior to Estimate Inflow Performance Relationship of Gas Well Production. Energies 2021, 14, 3594. https://doi.org/10.3390/en14123594

AMA Style

Zhang S, Liu H, Wang Y, Sun K, Guo Y. A Novel Mathematical Model Considering Real Gas PVT Behavior to Estimate Inflow Performance Relationship of Gas Well Production. Energies. 2021; 14(12):3594. https://doi.org/10.3390/en14123594

Chicago/Turabian Style

Zhang, Shuang, Huiqing Liu, Yanwei Wang, Ke Sun, and Yunfei Guo. 2021. "A Novel Mathematical Model Considering Real Gas PVT Behavior to Estimate Inflow Performance Relationship of Gas Well Production" Energies 14, no. 12: 3594. https://doi.org/10.3390/en14123594

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