中文摘要：

以物性、铸体薄片、电镜扫描、阴极发光、高压压汞、x衍射等测试结果为基础，对苏东41—33区盒8段储层的成岩相及其差异性进行了研究．结果表明：盒8段储层岩性为中一粗粒岩屑石英砂岩和细一中粒岩屑砂岩，填隙物质量分数较高，磨圆度为次棱角状～次圆，分选中等．成岩序列划分指标分析表明：成岩演化阶段为中成岩B期，压实压溶作用使原生粒间孔隙大量损失，胶结作用使储层物性进一步变差，优质储层的形成与溶解作用所产生的次生溶蚀孔发育程度密切相关．综合考虑成岩作用对储层物性、孔隙发育程度的影响，划分出五种成岩相；绿泥石胶结一溶蚀孔相孔隙结构好，排驱压力小，大孔喉质量分数高，渗透率大，为最有利的成岩相带．成岩相分布的差异性在宏观上主要源于物源距离和沉积微相的不同．

英文摘要：

Diagenetic facies and their differences of He 8 reservoir in Sudong 41-33 area were studied based on data concerning physical property, cast section, SEM, cathodeluminescence, high pressure mercury penetration, X diffraction. The results show that medium to wide lithic silicarenite and fine to medium lithic sandstone, higher interstitial material content, subangular to subrounded psephicity and middle grading were the main lithology characteristics. An analysis of several diagenetic series division index indicated that the diagenetic evolutionary phase was B Phase of middle diagenesis, compaction and pressolution led the intergranular pores to decrease heavily, cementation made the physical property become poorer, and the generation of the high quality reservoir has had an intimate relationship with the development degree of a secondary emposieu created by dissolution. In consideration of the influences of diagenesis On physical property and development degree of pores, diagenetic facies are classified into five types. Chlorite cementation-emposieu facies is the most superior diagenetic facies because of the good pore structure, low expulsion pressure, high content large pore throat and high permeability. The differences are controlled by provenance distance and deposition microfacies in macroscopy.