石油实验地质Issue(4)：445-451,7.DOI:10.11781/sysydz201504445
松辽盆地彰武断陷九佛堂组碎屑岩储层特征研究
Characteristics of clastic rock reservoirs in Jiufotang Formation, Zhangwu Depression, Songliao Basin
摘要
Abstract
The diagenetic effect, porosity and its influence on physical properties of clastic reservoirs in the Jiufo⁃tang Formation in the Zhangwu Depression were analyzed by means of core observation, ordinary and casting thin section microscopic identification, SEM and X⁃ray diffraction. Compaction, cementation and erosion effects are common in the Jiufotang Formation, and are mainly in stage A of the middle diagenetic phase. The diagenetic process of clay minerals was described as clay rim, compaction, early dissolution, chlorite, illite, secondary quartz overgrowth, micro quartz, sodium feldspar, calcite and late dissolution. Both primary and secondary pores were found. The secondary pores include intergranular dissolution pores, giant pores, intragranular dissolution pores, mold pores and fracture pores. A set of fan delta front sediments provided reservoirs. Rock type, clay content, diagenetic effect and sedimentary micro⁃facies influenced the distribution of high⁃quality reservoirs.关键词
成岩作用/孔隙结构/储层物性/九佛堂组/彰武断陷/松辽盆地Key words
diagenetic effect/pore structure/reservoir physical property/Jiufotang Formation/Zhangwu Depression/Songliao Basin分类
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洪雪,周卓明,刘福春..松辽盆地彰武断陷九佛堂组碎屑岩储层特征研究[J].石油实验地质,2015,(4):445-451,7.基金项目
中国石化科技部项目“松南新区改造型盆地资源潜力分析及勘探方向研究”（ P2011072）资助。 （）
