利用单点测试资料建立气井产能方程的新方法

BUILDING PRODUCTIVITY EQUATION OF GAS WELL BASED ON SINGLEPOINT TEST DATA

利用陕甘宁盆地中部气田气井的系统试井(常规回压试井)资料,在建立气井二项式产能方程系数(B)与其绝对无阻流易量之间关系的前提下,提出了利用单点测试资料建立气井产能方程、确定气井绝对无阻流量的新方法。该方法较以往文献介绍的方法有较大的优越性,它不依赖于一个气田气井的a统计值(平均值),对单点测试条件亦没有限制;利用单点测试资料能同时能建立气井的产能方程,确定气井的绝对无阻流量。

Using the flow-after-flow test data of gas wells in central Shanganning basin,based on the relation between productivity equation coefficient(B) and absolute open flow potential of gas wells,a new method of building productivity equation and determining the absolute open flow potential by singlepoint test data is proposed. This method has several advantages, for instance,it doesn't depend on the statistic values of α(average value)and has no limits on single-point test conditions.