修正的弹性二相法

天然气动态储量的计算方法很多,其中容积法和压降法计算天然气动态储量有很多优点,其计算可靠程度已被矿物实际证实,但它们都有各自限制的应用条件,弹性二相法是利用试井资料计算气藏或单井控制储量的,作为上述两种方法的补充是十分必要的,针对以往弹性二相法计算天然气动态储量在理论上存在一定的偏差,对该方法进行了合理的修正,使该方法适用范围更广,计算结果更可靠,对孔隙介质气藏,致密气藏具有更好的推广应用价值,通过对四川泸州地区广福坪嘉－气藏的原始地质储量及大庆升平气田升深1,升深2井单井控制储量进行的验证对比,说明修正的弹性二相法在理论上是合理的,通过实验验证是可行的。

Revised Elastic Two-phase Method

There are many methods for calculating gas reserves of performance.Methods of volume and pressure drop have many advantages for calculating gas reserves of performance.Their reliability has been proved for practice of field.But there are many conditions of adaptability for them.It calculates gas reserves of reservoir or control reserves of single well with testing data for elastic two phase method.It is very necessary for supplement above two methods.It has been reasonably revised in this article for an definite error in theory above traditional elastic two phase method.In order to extend reliable range and calculate volume reliably,there is a better value of spread and utilize for gas reserves of medium of pore and tight gas reserves.It has been passed to verify and contrast for geological reserves of Jiayi in Sichuan Province and control reserves of single well Shengshen1 and Shengshen2 in Daqing.It has been proved reliably in theory for revised elastic two phase method and it is feasible in practice.