Dynamic Prediction Model of Edge-water Gas Reservoir Based on
Water Invasion Early Warning

doi:10.11885/j.issn.1674-5086.2014.02.13.05

Abstract

Abstract:

Abstract：Water invasion can maintain the reservoir pressure and keep the production of gas wells for water-drive gas reservoir.
The gas well production performance will be affected by the sharp decreasing of gas permeability when the water breaks into
the well-bottom. It is very important significance for development technical adjustment to accurately predict the distance of
edge water advancing and to early warn for the water invasion. Based on the principle of volume balance of water invasion
circle of edge water gas reservoir，the formula of water invasion proximity warning was firstly proposed，then the prediction
models of production rate，pressure and water invasion volume were considered in this article，and a new prediction model of
edge-water gas reservoir production performance considering water invasion proximity warning was proposed，and a real case
study on Puguang Gas Reservoir was conducted finally.

Key words: Key words：edge-water, gas reservoir, water invasion proximity warning, production performance, prediction model

Li Zhijun1, Qi Zhilin1, Su Yaxian2, Li Jiqiang1, Yan Wende1. Dynamic Prediction Model of Edge-water Gas Reservoir Based on
Water Invasion Early Warning[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2014.02.13.05.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2014.02.13.05

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