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本文讨论了在气藏数值模拟中对气藏气水界面变化过程的处理技术和内容。该技术在实际应用中取得较好的效果。气藏数值模拟就其实质来说,是在根据气藏动、静态资料建立起来的气藏地质模型上,用动态的观点模拟气藏的生命周期,并对气藏的各种开发方案在这一生命周期内进行预测和优选,确定气藏的开发方案。一般地说,在气藏生命周期内,气藏的稳产期长,且在稳产期内采出天然气多的开发方案的效果较好。对于有水气藏,若能在气藏的生命周期内保持较长的无水开采期,且在这一无水采气期中采出
This paper discusses the treatment technologies and contents of gas-water interface change process in gas reservoir numerical simulation. The technology has achieved good results in practical applications. In essence, the numerical simulation of gas reservoirs is based on the gas reservoir geological model established according to the dynamic and static data of gas reservoirs, simulating the life cycle of gas reservoirs from a dynamic viewpoint, and developing various gas reservoir development schemes here Predict and optimize during one life cycle to determine the gas reservoir development plan. In general, gas reservoirs have a long-term stable production period and good gas production during steady-state gas production over the life of the gas reservoir. For a water-bearing reservoir, if it is possible to maintain a long period of dry water during the life of the gas reservoir and to recover during this dry period