【摘要】 从渗流理论出发,阐明了产能试井的原理及模型,分析了二项式产能方程系数与渗透率、地层厚度和表皮系数的关系。确定了气藏产能试井两点法、多点法及一点法的原则。指出气藏产能试井的测试点数与气藏类型、储层物性、测试精度和测试方法等有关;对于理想气藏或接近理想气藏的实际气藏,可以选择两点法求得二项式产能方程;对于偏离理想气藏较大的实际气藏,地层参数变化较大,应选择多点法。气藏产能试井测试点数的确定原则与方法可为气藏的高效开发提供理论依据与指导。更多还原

【Abstract】 Based on the filtration theory, the deliverability test theory and model are discussed and the relationship between coefficient of the binomial deliverability equation and the penetration rate, depth of pay zones and skin factor are analyzed. the principles of double points test, many points test and single point test are determined. It is pointed out clearly that the numbers of test point has relationship with type of gas reservoir, reservoir physical characteristics, accuracy and testing method. For actual ideal or approach gas pool, binomial points method is selected to derive binomial deliverability equation. while, for deviated from ideal gas reservoirs and great change of formation parameters, many points method should be selected. The principle of determining test point provides a guiding reference for developing gas well efficiently.更多还原