【摘要】 为了评价滨北地区青山口组和嫩一、二段两套源岩天然气资源,建立了天然气扩散损失的数学模型,确定了多气源条件下天然气扩散损失量的计算方法,利用该方法估算了滨北地区青山口组和嫩一、二段天然气的扩散损失量.结果表明:滨北地区青山口组烃源岩天然气总扩散量为5.3×1011m3,嫩一、二段烃源岩天然气总扩散量为2.5×1011m3,分别占其总生气量的31.2%和32.5%,故扩散作用是滨北地区天然气损失的重要因素.更多还原

【Abstract】 This paper has evaluated the diffusion amount of the sourcerock of K₁q_n and K₁n₁₊₂ in Binbei region, established a method for estimating gas diffusion amount through mathematical model of gas diffusion loss, and the method for establishing the diffusion losing amount in the condition of multi-gas sourcerock. Using the method this paper estimates the gas diffusion loss amount of gas sourcerock of K₁qn and K₁n₁₊₂ in Binbei region. The result indicates that the total gas diffusion loss amount of K₁qn in Binbei region is about 5.3×10¹¹ m³, which is 31.2% of the total generation gas amount. The total gas diffusion loss amount of K₁n₁₊₂ in Binbei region is about 2.5×10¹¹ m³, which is 32.5% of total generation gas amount. It indicates that the diffusion is the important factor of gas loss in Binbei region.更多还原