CAJ | 학술논문

通过实验室微观分析，直观展示了高邮凹陷阜一段含油砂岩的成岩特征及孔隙特征。阜一段含油砂岩成岩早期在微晶、粉晶状碳酸盐胶结、压实作用下，使原生孔隙遭受大部分损失；成岩后期显著的成岩作用特点是早期碳酸盐胶结物发生了溶解作用，储集空间主要为次生溶蚀孔隙，具有较高的孔隙度。研究认为含油砂岩次生溶蚀孔隙的形成与油气运移聚集之间有必然的相关性，它是烃类活动的必然结果。
통과실험실미관분석，직관전시료고유요함부일단함유사암적성암특정급공극특정。부일단함유사암성암조기재미정、분정상탄산염효결、압실작용하，사원생공극조수대부분손실；성암후기현저적성암작용특점시조기탄산염효결물발생료용해작용，저집공간주요위차생용식공극，구유교고적공극도。연구인위함유사암차생용식공극적형성여유기운이취집지간유필연적상관성，타시경류활동적필연결과。
The diagenesis and pore characteristics of oil -bearing sandstones in Gaoyou Sag are visually studied by means of the micro-analysis in laboratory.Cementation and compaction of microcrystalline and powder crystalline carbon-ate in oil-bearing sandstone of the 1 st member of Funing Formation are prevailing in the early stage of diagenesis which contribute to the major loss of the primary pore.Oil-bearing sandstone in the later stage of diagenesis is characterized by dissolution of early carbonate cement which brings secondary corrosion pores with high porosity.It is implied that the inevi-table correlation between the formation of secondary corrosion pores and the migration and accumulation of hydrocarbon.