计算气井储量新方法

提出了采用弹性二相法结合物质平衡方程作为计算全井储量的新方法。弹性二相法主要用于气藏开发进入拟稳态以后，要求压力和产量的测量精确，气藏的工作制度对弹性二相法储量也有很大影响，其计算可靠程度已被矿场实际证实；物质平衡方程在开发初期计算精度不高。将弹性二相法与物质平衡法结合建立多目标优化函数，该方法既能很好地应用弹性二相法，又能体现物质平衡，使得该方法适用范围更广，计算结果更可靠，对致密气藏具有更好的推广应用价值。通过实例气井动态储量进行的验证对比表明，该方法在理论上是合理的，实际验证是可行的。

A NEW METHOD COMPUTING GAS WELL DYNAMIC RESERVES

The elastic 2phase method，combined with material balance equation，is used to calculate the whole well reserves.The method is mainly used in the pseduosteady state of gas reservoir production，the measurement of pressure and deliveralibility is precisely required，while the working system of gas reservoir exerts considerable influence on the reserves calculated with elastic 2phase method，the calculation reliability has been verified in practice，in early stage of development，the calculation accuracy of material balance equation is not high.Elastic 2 phase method combining with material balance equation is used to establish optimal multiple objective function，which can fully apply elastic 2 phase method，and express material balance.So，the method can be more widely used，the calculation result is more reliable and it can be greatly popularized in tight gas reservoirs.Case study indicates the method is resonable in theory，practical verification is operable.