凝析气藏改建储气库水侵量评价方法
An evaluation method of water influx for reconstructing gas storage in condensate gas reservoir
黄世军 1何学良 2徐俊杰 2张雄君 3范晶 1阳小平 2刘翀2
作者信息
- 1. 中国石油大学(北京),北京102249
- 2. 中石油北京天然气管道有限公司,北京100101
- 3. 北京市燃气集团有限责任公司,北京100035
- 折叠
摘要
地下储气库作为一种高效的天然气存储设施被广泛应用,其中凝析气藏改建的储气库占很大比例.针对由弱边水凝析气藏改建的储气库,分析了采气过程中的相态变化,通过气藏工程方法及物质守恒原理,建立了考虑气藏弹性能、油环油、边水水体、反凝析等因素的物质平衡方程式,进而建立了水体能量与压力变化图.结合某储气库地质资料与运行动态数据,对其水体能量及水侵量进行了计算评价,从而为凝析气藏改建储气库的水侵量评价提供了理论依据.
Abstract
As efficient natural gas storage facilities,underground gas storages are widely used and a majority of them are reconstructed in condensate gas reservoir.In this paper,for the reconstructed gas storage in condensate gas reservoir with weak edge water,phase change in the process of gas production is analyzed.Using gas reservoir engineering method and material conservation principle,the material balance equation considering the elastic energy in gas reservoir,oil in oil ring,edge water body,retrograde condensation and other factors is established.On this basis,the curves of water energy changing with pressure are obtained.Combining the geological data and operation dynamic data of a gas storage,its water body energy and water influx are calculated and evaluated,providing a theoretical basis for water influx evaluation of reconstructed gas storage in condensate gas reservoir.
关键词
地下储气库/凝析气藏/物质平衡原理/水侵量评价/水体能量评价Key words
underground gas storage/condensate gas reservoir/material balance principle/evaluation of water influx/evaluation of water energy引用本文复制引用
出版年
2015
NETL
NSTL
维普
万方数据