在深入研究天然气在地层岩石中的扩散机理的基础上，针对以往天然气扩散量估算中存在的问题，改进了天然气通过地层扩散散失的地质模型和数学模型，建立了一套天然气扩散损失量的估算方法，并将其应用于大庆长垣以东地区侏罗系天然气扩散损失量的估算中，结果较客观地反映了扩散作用在天然气聚集与保存中所起的重要作用，这充分表明该方法用于估算天然气扩散损失量是可行的，结果是可信的。 Based on the deep research on the diffusion mechanism of natural gas in stratigraphic rocks, aiming at the existing problems in natural gas diffusion estimation, the geological model and mathematical model of natural gas diffusion through stratigraphy are improved and a set of natural gas diffusion loss estimation is established Method and applied it to the estimation of natural gas diffusion losses in the east of Daqing Changyuan. The results more objectively reflect the important role played by diffusion in the accumulation and preservation of natural gas, which fully shows that this method It is feasible to estimate the amount of natural gas loss and the result is credible.