The Productivity Equation for Giant Thick Gas Reservoirs with Bottom Water

DOI

10.2991/iccte-16.2016.118How to use a DOI?

Keywords

Water drive gas reservoirs, non-Darcy flow, Radial flow, Hemispheric flow, Opening degree, Productivity equation

Abstract

For the production formulas of the gas reservoirs with bottom water, the models established in the past consider that only a small part of the gas layer is perforated and the entire region under the perforated zone is considered as the hemispheric flow, ignoring effects of the opening degree and formation anisotropy for gas production. The reality illustrates that the thick gas reservoirs may be larger opening degree and the flow hemispherical only exists near wellbore. The opening degree and the stratum anisotropy have great influence on production of gas well. Based on the previous models, this paper improves the models and deduces the productivity equation considering skin effect and the gas non-Darcy flow characteristics of the thick gas reservoirs with bottom water and analyzes the influence of the opening degree on the gas well productivity. The results of the examples show that the equations considering the skin effect, the non-Darcy flow and formation anisotropy are more realistic.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Quanhua Huang
AU  - Yun Lu
AU  - Chong Chen
AU  - Yunhui Fu
AU  - Tong Liu
AU  - Xinghua Deng
PY  - 2016/01
DA  - 2016/01
TI  - The Productivity Equation for Giant Thick Gas Reservoirs with Bottom Water
BT  - Proceedings of the 2016 International Conference on Civil, Transportation and Environment
PB  - Atlantis Press
SP  - 697
EP  - 705
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-16.2016.118
DO  - 10.2991/iccte-16.2016.118
ID  - Huang2016/01
ER  -