提高浅层气藏天然气可采储量标定精度的方法研究

Methods to Improve the Demarcated Accuracy of Gas Recoverable Reserves in Shallow Gas Reservoirs

针对浅层气藏产量变化规律性差、天然气可采储量标定结果与实际动态吻合性差的特点,从产量数据的处理、标定方法的选择、气藏废气条件确定、天然气物性参数计算等方面,提出了提高天然气可采储量标定精度的方法;并以实际区块为例,进行了分析,得到了较满意的结果。该方法简单、实用、有效,提高了天然气可采储量的标定精度。

According to the character of the poor production history rule and the mismatching between the demarcated recoverable reserves and the reservoir performance,the methods to improve the demarcated accuracy of gas recoverable reserves are presented in this paper.The methods include the processing of production data,the selection of demarcating methods,the determination of abandonment conditions and the calculation of gas PVT.The methods were applied in Kenxi Block and the result shows that the demarcating accu...