CAJ | 학술논문

根据砂岩薄片、铸体薄片、扫描电镜、X-衍射等分析，对子长油田安定区块长6储层砂体的岩石学特征、成岩作用进行了研究。结果表明：研究区长6储层储集砂体成分主要由长石质岩屑砂岩和岩屑质长石砂岩组成，砂岩具成分成熟度较低、分选性较好、磨圆度较差的特点，其成岩作用处于晚成岩 A 期。早期的压实作用及胶结作用是使原生孔隙遭受破坏的主要因素，而溶蚀作用是形成次生孔隙的主要因素。
근거사암박편、주체박편、소묘전경、X-연사등분석，대자장유전안정구괴장6저층사체적암석학특정、성암작용진행료연구。결과표명：연구구장6저층저집사체성분주요유장석질암설사암화암설질장석사암조성，사암구성분성숙도교저、분선성교호、마원도교차적특점，기성암작용처우만성암 A 기。조기적압실작용급효결작용시사원생공극조수파배적주요인소，이용식작용시형성차생공극적주요인소。
According to analysis on sandstone sheet,cast sheet,scanning electron microscopy,X- diffraction,the arti-cle studies petrology characteristics,diagenesis of Chang 6 block at Anding district of Zichang Oilfield.The result shows that the reservoir of Chang 6 reservoir sand bodies composed mainly by feldspathic lithic sandstone and lithic feldspathic sandstone.The sandstone is low compositional maturity,good sorting,poor roundness characteristics and its diagenesis is later than diagenesis.Early compaction and cementation is the main reason to make primary porosity destruction and disso-lution is a major factor in the formation of secondary porosity.