气井压降曲线的类型及井控储量计算研究

Types of Gas Well Drawdown Curves and Evaluation of Well Controlled Reserves

对于采用衰竭式开采的气井,随着开采时间其压力不断降低,在实际生产过程中利用测井资料等方式求得压降曲线。压降曲线在反映气井压力变化的同时也可以用来推测气藏是否封闭,是否有能量补充,其重点是对压降曲线类型的判定和利用其进行气井控制储量的计算。

For gas wells that used the depletion exploitation method, their pressure continuously decreased along with wells development. The pressure drawdown curve was gained by well log information in actual production. The pressure daawdown curve not only can reflect changes of pressure, but also can predict whether the gas well is closed and whether the well energy is supplied, especially can judge type of the pressure drawdown curve to evaluate well controlled reserves.