作　　者： ; ; ; ;

机构地区： 西南石油大学

出　　处： 《西南石油大学学报（自然科学版）》 2007年第2期34-36,共3页

摘　　要： 针对气井的常规系统分析存在“用二项式等方法预测流入动态而不考虑气藏渗流特征”问题,提出了采用不稳态气藏渗流与井筒流动的耦合机制进行动态分析,充分考虑气藏的渗流特性、供给范围及开采过程中的地层压力递减情况。通过常规生产动态资料,确定气井的控制储量、地层参数,预测不同开采方式和不同时间情况下的气井产能和压力变化,评价可采储量及增压效果,从而优化气井的工作制度。 For the problem that gas well conventional systematic analysis doesn′t consider gas reservoir flow characteristic during prediction inflow performance by binomial method and so on, the coupling mechanism of the unsteady flow of fluid through porous medium and wellbore flowing is presented to perform productivity analysis, fully considering flow characteristic of gas reservoir, drainage area and formation pressure descending in the process of producing. By conventional production behavioral information, establishing controlled reserve of gas well, formation parameter, prediction the change of gas-well productivity and pressure under the circumstance of different exploration type and time, evaluating of recoverable reserves and effect of offset pressure, thereby, gas well working system is optimized.

关 键 词： 动态分析 不稳态 耦合 产能预测 低渗透气藏

领　　域： [石油与天然气工程]