古地理学报2013，Vol.15Issue(1)：125-134,10.DOI:10.7605/gdlxb.2013.01.012
松辽盆地北部下白垩统泉头组三、四段碳酸盐胶结物分布及其主控因素
Distribution of carbonate cements in the Members 3 and 4 of Lower Cretaceous Quantou Formation of northern Songliao Basin and its main controling factors
摘要
Abstract
In order to study the distribution characteristics of carbonate cement and the controling factors in clastic reservoir of the Members 3 and 4 of Lower Cretaceous Quantou Formation in northern Songliao Basin. The theories of high-resolution sequence stratigraphy, and the methods of microscopically slice observation, electron microprobe analysis, fluid inclusion testing and physical properties analysis were used. The results showed that the strata of Members 3 and 4 of Quantou Formation in northern Songliao Basin were gentle, and they were buried at depths of small span, diagenesis of them was weak, and carbonate cement was mainly affected by sedimentary microfacies and cycle of base level. In the direction of provenance area to the basin, values of the content of carbonate cements in different sedimentary facies of meandering river, distributary channel and submerged distributary channel were different. At the same time, influenced by factors such as lithological character, sorting and rounding of grains, shale content, etc, the content of carbonate cement increased gradually. Values of content of carbonate cement were different in different medium cycles of the same sedimentary microfacies types of reservoir, and with the long - term base level rising, they showed a decreasing trend. The regular change of content of carbonate cement due to the difference in sedimentary environments controled by microfacies and base-level cycles is one of the important factors which influence the heterogeneity of fluvial reservoirs.关键词
高分辨率层序地层/基准面旋回/松辽盆地/泉头组/碳酸盐胶结物/成岩作用Key words
high-resolution sequence stratigraphy/base-level cycle/Songliao Basin/Quantou Formation /carbonate cement/diagenesis分类
天文与地球科学引用本文复制引用
赵小庆,鲍志东,孟元林,刘宗飞..松辽盆地北部下白垩统泉头组三、四段碳酸盐胶结物分布及其主控因素[J].古地理学报,2013,15(1):125-134,10.基金项目
国家科技重大专项"西非深水海底扇典型油气田精细油藏描述与储集层地质建模"(编号:2008ZX05030-005-01)和国家科技重大专项"塔里木盆地白云岩优质储集层发育模式及分布规律"(编号:2011ZX05004-004-007)共同资助 （编号:2008ZX05030-005-01）
