控制牙哈地区古潜山储集层非均质性的主要因素探讨

Discussion on Main Factors Controlling Heterogeneity of Reservoir Beds in Buried Hill in Yaha Area

通过对牙哈地区潜山油藏流体性质分析及其在储集层内的分布特点,得出控制潜山油藏规模及流体分布的主控因素是储集层平面和纵向上严重的非均质性,并运用沉积学观点,从五个方面进一步分析了非均质性的成因。从而找出了潜山油藏规模小与油源丰富矛盾的具体答案。

It is obtained that the main controlled factors dominating the dimensions of buried hill oil pool and fluid distribution are the gross heterogeneity on reservoir bed and vertical planes through the analysis of fluid properties in buried hill reservoir of Yaha area and its distributed characteristics in reservoir beds; and applying the viewpoint of sedimentology, the origin of heterogeneity is further analyzed from the five aspects; thus it is interpreted that the relatively small scale of buried hill oil reservoir disagrees with abundant oil resources.