阿姆河盆地右岸区块卡洛夫–牛津阶储层特征及主控因素研究
Analysis of Reservoir Controlling Factors and Characters of Callovian-Oxfordian Stage in the Right Bank Block of Amu Darya Basin
摘要: 阿姆河盆地是中亚地区最重要的含油气盆地之一。研究区发育蒸发台地、局限台地、开阔台地、台地边缘等6种沉积相类型，储层主要分布在台地边缘礁、台地边缘浅滩和台内礁滩沉积。储集岩以颗粒灰岩和礁灰岩物性最好，总体上属于低孔低渗储层。储集空间类型以剩余原生粒间孔、生物礁骨架孔和粒间溶孔、粒内溶孔为主，次为铸模孔、晶间孔、晶间溶孔和超大溶孔的组合。卡洛夫–牛津阶储层发育严格受岩性、沉积相和成岩作用控制，生物礁和颗粒灰岩储集物性最好，台地边缘生物礁和台地边缘浅滩相为最有利储层发育的相带，多期溶蚀作用是卡洛夫–牛津阶碳酸盐岩成岩过程中最为普遍和重要的成岩作用，是储层孔隙发育的基础。
Abstract: The Amu Darya Basin is one of the most important petroliferous basins in Central Asia. There are six sedimentary facies types in the study area, including evaporate platform, restricted plat-form, open platform and platform edge, and the reservoirs are mainly distributed in platform edge reef, platform edge shoal and platform inner reef deposits. Granular limestone and reef li-mestone are the best reservoir rocks with low porosity and low permeability. The main types of reservoir space are the residual primary intergranular pores, reef skeleton pores, intergranular dissolution pores and intragranular dissolved pores, and the secondary are the combination of mold pores, intergranular pores, intergranular dissolution pores and super-large dissolution pores. Callovian-Oxfordian Stage reservoir development is strictly controlled by lithology, sedimentary facies and diagenesis, reefs and grain limestone reservoir physical property is the best, platform margin reefs and platform edge shoal facies are the most beneficial facies zone of reservoir development, multiphase dissolution is the most common and important diagenesis of Callovian- Oxfordian in the process of carbonate rock diagenesis, is the foundation of the reservoir pore development.
文章引用：张俊, 胡忠贵. 阿姆河盆地右岸区块卡洛夫–牛津阶储层特征及主控因素研究[J]. 地球科学前沿, 2022, 12(6): 900-912. https://doi.org/10.12677/AG.2022.126086

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