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通过模拟高温、高压条件下酸性溶液对碳酸盐岩溶解实验,实验结果表明,其他条件相同时,酸性溶液优先溶蚀灰质白云岩中方解石成分;在设定温度、压力范围内方解石溶蚀量总是大于白云石溶蚀量。以CO_2水溶液作为反应溶液时,温度、压力条件对碳酸盐岩的溶蚀有控制作用,在埋藏较浅地区下方解石溶蚀量最大,当温度、压力条件更低或更高时方解石溶蚀量相对较低;相比于方解石,白云石溶蚀量相对较低。
By simulating the dissolution of carbonate solution by acidic solution under high temperature and high pressure, the experimental results show that the acidic solution preferentially dissolves the calcite in gray dolomite under the same conditions. At the set temperature and pressure, the dissolution of calcite is always Greater than dolomite dissolution. When CO 2 aqueous solution is used as the reaction solution, the temperature and pressure conditions have a controlling effect on the dissolution of carbonate rocks, and the dissolution amount of calcite under the shallow buried areas is the largest. When the temperature and pressure conditions are lower or higher, the dissolution amount of calcite is relatively Low; compared to calcite, dolomite dissolution is relatively low.