CAJ | 학술논문

玛北斜坡区三叠系百口泉组储集层以砾岩、砂砾岩及砂岩为主。针对该套储层成分成熟度低、磨圆度较差、分选性差的特点，运用薄片鉴定、扫描电镜、物性分析等资料，分析出百口泉组储层经历了压实、胶结、溶蚀、烃类侵位等成岩作用及成岩事件，确定该段储层处于中成岩阶段B期及相应的成岩演化序列。认为该区的主要孔隙类型为剩余粒间孔隙、粒内溶孔及部分微裂缝。由于成岩作用对孔隙结构的改造作用，孔隙演化整体上呈减小趋势，其中溶蚀作用及烃类侵位决定了玛北斜坡区优质储层的发育状况。
마북사파구삼첩계백구천조저집층이력암、사력암급사암위주。침대해투저층성분성숙도저、마원도교차、분선성차적특점，운용박편감정、소묘전경、물성분석등자료，분석출백구천조저층경력료압실、효결、용식、경류침위등성암작용급성암사건，학정해단저층처우중성암계단B기급상응적성암연화서렬。인위해구적주요공극류형위잉여립간공극、립내용공급부분미렬봉。유우성암작용대공극결구적개조작용，공극연화정체상정감소추세，기중용식작용급경류침위결정료마북사파구우질저층적발육상황。
The main rock type is sandstone and conglomerate in Baikouquan formation reservoir of Mabei Oilfield.In view of the reservoir with low compositional maturity,poor roundness,poorly sorted,using thin section, scanning electron microscope,porosity and permeability analysis and other data,analysis of Baikouquan reservoir experienced compaction, cementation,dissolution,hydrocarbon emplacement,diagenesis and diagenetic event,determine the reservoir in the middle diagenetic stage B and corresponding diagenetic evolution sequence. That the main pore types in this area for the remain-der intergranular pore,intragranular dissolved pore and micro fracture,due to diagenetic modification on the pore struc-ture,pore evolution showed an overall decreasing trend, and the dissolution and hydrocarbon emplacement determines the quality reservoir development status in Mabei Oilfield.