边水驱气藏气井压力的动态特征  

Pressure Behaviors of Gas Well in Edge-water Drive Gas Reservoir

作　　者：李晓平[1] 刘启国[1] 赵必荣[1] 

机构地区：[1]西南石油学院,南充637001

出　　处：《重庆大学学报（自然科学版）》2000年第z1期83-85,共3页Journal of Chongqing University

基　　金：中国石油天然气集团公司"九五"项目! (96 0 80 5 0 3)

摘　　要：建立了外边界为封闭情况下 ,边水驱气藏中水驱气渗流的数学模型 ,它是一个两区径向复合渗流的数学模型 ,在利用拉氏变换获得了数学模型的解后 ,计算了内区半径、外区半径、气水传导系数比、气水流度比影响下的压力及压力导数典型曲线 ,分析了渗流特征 。This paper built the seepage flow mathematical model of water-drive gas in edge-water drive gas reservoir with closed outer boundary, it is a mathematical model of two-region radial composite seepage flow, after obtaining solution of mathematical model, typical curves of pressure and pressure derivative with effects of inner region radius、outer region radius、coefficient ratio of conductivity and mobility ratio of gas-water are calculated, seepage flow behavior is analyzed, study in this paper provided theoretical bases for well test analysis of gas well in edge-water drive gas reservoir.

关 键 词：水驱 气藏 气井 数学模型 传导系数 

分 类 号：TD421[矿业工程—矿山机电]