首页> 外国专利> METHOD FOR EXPERIMENTALLY DETERMINING INFLUENCE OF ACID LIQUOR ON YOUNG'S MODULUS OF COMPACT CARBONATE ROCK

METHOD FOR EXPERIMENTALLY DETERMINING INFLUENCE OF ACID LIQUOR ON YOUNG'S MODULUS OF COMPACT CARBONATE ROCK

机译:实验测定酸度对紧凑型碳酸盐岩杨氏模量的影响的方法

摘要

The present invention discloses a method for experimentally determining the influence of acid liquor on the Young modulus of compact carbonate rock. The method comprises the following steps: (1), selecting a standard core of compact carbonate rock for use, carrying out a uniaxial compressive strength experiment to establish an empirical relationship between the uniaxial compressive strength and the Young modulus of the compact carbonate rock; (2), selecting a full-diameter core in a target work area for use, carrying out a rock scratching experiment by using a rock scoring instrument, testing the compressive strength of the core, and acquiring the Young modulus of the core before acid treatment; (3), soaking the acid liquor and the core in a high-temperature and high-pressure reactor for a soaking reaction; and (4), carrying out a scratching experiment again on the core soaked with the acid liquor in the original scratching experiment position, testing the compressive strength of the core, acquiring the Young modulus of the core after acid treatment, and determining the influence of the acid liquor on the Young modulus of the compact carbonate rock. The method disclosed by the present invention is reliable in principle, and simple and convenient in operation. The influence of the acid liquor on the Young modulus of the compact carbonate rock under reservoir conditions is authentically evaluated, and the acid fracturing transformation effect of the compact carbonate rock is further improved.
机译:本发明公开了一种用于实验确定酸性液体对致密碳酸盐岩石的杨氏模量的影响的方法。该方法包括以下步骤:(1)选择要使用的致密碳酸盐岩的标准岩心,进行单轴抗压强度试验,建立致密碳酸盐岩的单轴抗压强度与杨氏模量之间的经验关系; (2),在目标工作区域中选择要使用的全直径岩心,使用岩石划痕仪进行岩石刮擦实验,测试岩心的抗压强度,并在酸处理之前获得岩心的杨氏模量。 ; (3)将酸液和核浸入高温高压反应器中进行浸泡反应; (4)在原来的刮擦实验位置对浸有酸液的芯再次进行刮擦实验,测试芯的抗压强度,酸处理后获得芯的杨氏模量,并确定其影响。酸液对致密碳酸盐岩杨氏模量的影响。本发明公开的方法原理可靠,操作简单方便。真实地评价了酸液对储层条件下致密碳酸盐岩杨氏模量的影响,进一步提高了致密碳酸盐岩的酸化压裂转化效果。

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