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文章从山2气藏各井产量相差悬殊着眼,提出储层非均质性的存在。避开储层非均质性的常规研究方法,提出利用各类型储层在纵向及平面上的分布及气井产能差异来讨论储层非均质性的新方法。该方法将山23段储层划分为四类,并通过单井和连井剖面详细说明了储层非均质性与储层分布的关系,证明储层非均质性的强弱与储层的类型和分布有关。储层类型和厚度的差别导致了气藏内各井产能的高低不同,使高产井和低产井间的产量相差超过10×104m3/d。
In this paper, the production of wells in Shan 2 Gas Reservoir is very different, and the existence of reservoir heterogeneity is proposed. To avoid the conventional research methods of reservoir heterogeneity, a new method to discuss reservoir heterogeneity by using the vertical and horizontal distribution of various types of reservoirs and the difference of gas well productivity is proposed. This method divides the reservoirs in the Shan 23 section into four categories. The relationship between reservoir heterogeneity and reservoir distribution is described in detail through single well and continuous well sections, and the relationship between reservoir heterogeneity and reservoir The type and distribution. Differences in reservoir type and thickness result in different productivity levels for each well in the gas reservoir, resulting in a difference of more than 10 × 104 m3 / d between high and low production wells.