Abstract

The Lower Devonian interval in the northeastern Timan–Pechora petroliferous basin is composed of polygenic carbonate rocks. Various depositional environments governed the distribution of different type and quality reservoirs in these rocks. Sedimentation took place in vast tidal plains, shallow sublittoral zones, and carbonate shoals within them. The facies heterogeneity of carbonate rocks led to a different intensity of postsedimentary transformations reflected in the complex morphology of pore space and the consequent variable filtration-capacity characteristics of the Lower Devonian reservoir rocks governing the main productivity of the Lower Paleozoic Timan–Pechora petroliferous basin.

中文翻译：

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Khoreiver 凹陷东部边缘（Timan-Pechora 含油气盆地）下泥盆统储层分布的相控

摘要

Timan-Pechora 含油气盆地东北部的下泥盆统层段由多成因碳酸盐岩组成。不同的沉积环境决定了这些岩石中不同类型和质量储层的分布。沉积发生在广阔的潮汐平原、浅浅的滨海带和其中的碳酸盐浅滩。碳酸盐岩相的非均质性导致沉积后转变的强度不同，这反映在复杂的孔隙空间形态以及由此产生的下泥盆统储层岩石的可变过滤能力特征控制下古生界Timan-Pechora含油气盆地的主要生产力。