确定榆林气田气井无阻流量的新方法

榆林气田气井无阻流量的确定多采用传统的“一点法”试井.试井时如果测试时间不够或井底有积液都会使得测试结果失真,影响气井配产和动态预测.为了解决这个问题,通过对榆林气田气井传统“一点法”试井资料的分析,提出利用气井动态数据确定气井无阻流量和产能方程的一种新方法.计算结果表明,用气井动态生产数据确定的无阻流量和产能方程符合气井生产实际,具有重要的应用价值.

A new method for calculating the open-flow capacity of a gas well in Yulin Gasfield

The open-flow capacity of the gas well in Yulin gasfield is generally determined by the conventional single-point. But if well-testing time is shorter or there is liquid in the bottom of the tested gas well, the dynamic prediction of the gas well productivity is not accurate and the proration plan of it is affected. A new method for determining the open-flow capacity and the productivity equation of the gas-well in Yulin Gasfield is put forward based on the analysis of the “single-point” well-testing data. The cases show that the open-flows and productivity equations determined by the method are close to the actual those.