摘要
根据铸体薄片、扫描电镜、电子探针、X-衍射分析,对鄂尔多斯盆地下寺湾油田延长组长6油层储层成岩作用特征及对物性影响因素进行系统研究。认为该区长6储层成岩后生作用复杂多变,主要有压实作用、胶结作用及溶蚀作用等;破坏性成岩作用主要为压实压溶作用、胶结作用,是降低物性的主要原因,建设性成岩作用主要为溶蚀作用,产生溶蚀粒间孔、溶蚀粒内孔极大改善储层质量。
By using casting thin sections, scanning electron microscope, electron probe microanalysis, X-ray diffraction, the diagenesis and controlling factors on reservoir quality of Triassic Yanchang Formation Chang 6 reservoir are studied systematically. It is suggested that the post-diagenesis of Chang 6 reservoir is complicated and ever-changing, including compaction, cementation and dissolution, etc. Constructive diagenesis, including compaction, pressure solution, cementation and dissolution, are the main factors for reduce of reservoir quality, while constructive diagenesis, mainly dissolution, produced intergranular dissolved pore and intragranular dissolved pore, and greatly improved reservoir quality.
出处
《延安职业技术学院学报》
2014年第4期155-156,共2页
Journal of Yan’an Vocational & Technical College
关键词
储层
成岩作用
长6油层
下寺湾油田
Reservoir
Diagenesis
YanchangFormation Chang 6 reservoir
Xishiwan Oilfield
