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运用流动液相水-岩反应实验装置,在不同埋藏成岩作用的温度和压力条件下,以稀乙酸为介质,对不同矿物组成的碳酸盐岩的溶解动力学实验证明:碳酸盐岩随埋藏深度的增加,其溶蚀程度和溶蚀速率也随之增加。相比较而言,在深埋藏条件下,由于方解石的溶蚀速率小于白云石的溶蚀速率,因此白云岩较灰岩有更快的溶蚀速率。另外由于选择性溶蚀作用,相对而言,过渡类型的岩石比矿物成分较纯的灰岩和白云岩有着较高的溶蚀速率。实验结果表明,在埋藏条件下,白云岩溶解生成的次生孔隙将比其在灰岩更为发育,过渡类型的岩石比矿物成分较纯的灰岩或白云岩也更为发育。
Using the mobile liquid-water-rock reaction device, dissolution kinetics experiments of carbonate rocks with different minerals under dilute acetic acid medium under the conditions of different burial diagenesis temperature and pressure show that carbonate rocks Burial depth increases, the degree of dissolution and dissolution rate also increases. In contrast, dolomite has a faster dissolution rate than limestone under deep burial conditions, since the dissolution rate of calcite is less than the dissolution rate of dolomite. In addition, due to selective dissolution, transitional types of rocks have relatively higher rates of dissolution than limestone and dolomite, which are purer in mineral composition. The experimental results show that under the burial conditions, secondary pores formed by the dissolution of dolomite will be more developed than limestone, while transitional types of rocks are more developed than purer limestone or dolomite.