作　　者： ; ;

机构地区： 西南石油学院计算机科学学院

出　　处： 《西南石油学院学报》 2000年第1期47-50,共4页

摘　　要： 针对煤层气产出过程中的降压、解吸、扩散、渗流等特点 ,应用非稳态解吸模型 ;研究了煤层气在基质和割理中的单相流动 ;建立了新的有限导流压裂井评价模型 ;讨论了裂缝壁面表皮系数、吸附系数、裂缝储容系数和窜流系数对压力动态的影响 ;分析了煤层气压裂井的压降典型曲线特征和参数估计方法 ,从而为煤层气藏开发提供了可靠的数据。 Based on the characteristics of the pressure declining, desorption, diffusion and fluid flow in the process of coalbed methane from matrix of coal seam. Applying the non-equilibrium desorption methods in the paper, we studied the single-phase flow of coalbed methane in coal matrix and cleat, and established a new evaluation model for finite conductivity fractured well of coalbed methane. The paper described the effect of the factors of fracture face damage skin, adsorption, fracture storage, and interporosity flow on transient pressure performance. Finally, the characteristics of typical curves for coalbed methane and parameter estimation were discussed. It gets the reliable supports for coalbed methane reservoir development.

关 键 词： 煤层气 压裂井 有限导流 压力动态 水力压裂

领　　域： [石油与天然气工程] [石油与天然气工程]