Abstract

The experimental characterization of the ion-exchange capacity of low-permeability shale rocks of the Bazhenov Formation in the central and southern parts of the Nizhnevartovsk arch in Western Siberia is presented. It was established that the cation exchange capacity (3.30–17.01 meq/100 g rock) and the specific surface area (10.05–12.66 m²/g) depend on the clay mineral content but not the organic matter content. The present paper describes the type of exchange complex in the studied rock samples of the Bazhenov Formation and discusses the possible reasons for the distribution of exchangeable cations. The cation exchange complex of most studied Bazhenov rock samples is of a marine type (rCa/(rNa + rK) < 1).

中文翻译：

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西西伯利亚下瓦尔托夫斯克拱中南部巴热诺夫组页岩离子交换能力

摘要

介绍了西西伯利亚下瓦尔托夫斯克拱中南部巴热诺夫组低渗透页岩离子交换能力的实验表征。已确定阳离子交换容量（3.30-17.01 meq/100 g 岩石）和比表面积（10.05-12.66 m ² /g）取决于粘土矿物含量而不是有机质含量。本文描述了所研究的 Bazhenov 组岩石样品中的交换络合物类型，并讨论了可交换阳离子分布的可能原因。大多数研究的 Bazhenov 岩石样品的阳离子交换络合物属于海洋型 ( r Ca/( r Na + r K) < 1)。