Abstract

The composition, structure, and secondary alteration of the Lower Devonian sedimentary rocks are characterized; the distribution of various types of pore spaces is analyzed and several types of dolomite structures are distinguished. The results of our works indicate that, depending on the permeability, solubility, and primary structure of the carbonate rocks or sediment, as well as the temperature, volume, and duration of influence of dolomitizing fluids, dolomitization can lead to an increase or decrease in porosity.

中文翻译：

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二次白云石化作用是对Khoreiver凹陷东墙（Timan–Pechora石油盆地）下泥盆纪沉积岩储层性质负责的因素

摘要

对下泥盆纪沉积岩的成分，结构和次生蚀变进行了表征。分析了各种孔隙空间的分布，并区分了几种类型的白云岩结构。我们的工作结果表明，取决于碳酸盐岩或沉积物的渗透性，溶解度和主要结构，以及温度，体积和白云石化流体影响的持续时间，白云石化会导致白云石化作用的增加或减少。孔隙率。