【摘要】 为了更准确地研究气藏天然气聚集的能力和速度,在前人气藏天然气聚集速率计算方法研究的基础上,考虑了气藏形成后的扩散散失量,改进了气藏天然气聚集速率的计算方法。选取我国41个大中型气田为例,利用改进前后气藏天然气聚集速率计算方法对其天然气聚集速率进行了计算,得到两种计算结果差异较大,后者为前者的1.01~3.05倍,平均为1.29倍。表明改进后方法计算得到的气藏天然气聚集速率更接近真值,更能准确地反映地下实际情况。更多还原

【Abstract】 In order to study gas accumulation capability and rate accurately,on the basis of previous research on the calculation method of gas accumulation rate and taking into account the gas diffusion amount after the formation of gas reservoir,the calculation method of gas accumulation rate in gas reservoir was improved.The authors selected 41 large and medium gas fields in China as examples and calculated their gas accumulation rates by use of calculation method of gas accumulation rate in gas reservoir before and after improvement.It was considered that gas accumulation rates of these gas fields calcula-ted respectively by original and improved methods are quite different.The improved is 1.01-3.05 times of the original,and 1.29 times on average.It shows that gas accumulation rates calculated by improved calculation method are much closer to the true values than original methods,and they reflect better the underground actual situation.更多还原