西西伯利亚古生代礁群── 一种潜在的油气储集体(外文)

West Siberia Paleozoic Reef Deposit: A Potential Hydrocarbon Reservoir Rock Body

文章主要对西西伯利亚地台上的古生代盆地和阿尔泰一萨彦岭古生代盆地中古生代碳酸岩盐台地沉积环境的分布范围和地层发 育情况进行了分析。研究了在这类环境中所形成的各种生物沉积结构的生物碳酸盐岩连续沉积带。在这类沉积带中发育有少量的链状 礁和礁块，某些礁块是由古老礁块继承发育而成。研究了礁体上覆、下伏碳酸盐岩储集层和陆源成因的流体遮挡层，阐述了上述两个盆地 礁岩形成的同期性，这可能与统一的西伯利亚古海湾的存在有关。

This paper made a principal analysis of the sedimentary environments and strata of Paleozoic Carbonate reservoirs in old basin on West Siberia platform and in Altai-Salaer basin,and a study of the pure bio-carbonate deposits and their depositional textures. In these areas, there existed some chain -like reefs and reef blocks which seemed to be formed by development of paleo-reef blocks. Through investigation of carbonate reservoir of terrigenous origin on and be- neath the reefs,it is confirmed that the reefs in the two basins were shaped in the same period,probably being related to the existence of West Siberia Bay.