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通过成岩作用及孔隙结构的分析研究,将黄骅拗陷南区中生界含油砂体划分为中成岩阶段未成熟期至成熟早期。本区2500~3400m之间发育较多的次生孔隙。王官屯和舍女寺地区具备较好储集空间的共同,点是砂体位于主河道上,岩石中柔性组分低,溶蚀孔隙发育,所处构造位置恰与主力生油层接触。同一断块上含油砂体储集性能具差异性的原因是较好的储油砂体具有埋藏较浅、裂缝多、碳酸盐胶结物多、溶蚀孔和晶间孔发育、非膨胀性粘土为主、粒度较粗的特点.
Based on the analysis of diagenesis and pore structure, the Mesozoic oil-bearing sand bodies in the southern area of the Huanghua depression can be divided into immature and early mature stages of the diagenetic stage. More secondary pores developed between 2500 and 3400 m in this area. Wangguantun and Shensi Temple area have good reservoir space common point is the sand body located in the main channel, the rock is low in soft components, dissolved pores developed, where the tectonic position just in contact with the main oil generating layer. The reason for the difference in reservoir performance of oil-bearing sand bodies on the same fault block is that the better oil-bearing sand bodies have the characteristics of shallow burial, more fractures, more carbonate cements, and development of dissolution pores and intergranular pores, non-swelling clay Based, coarse-grained features.