阅读说明：本技术 一种用于评价气藏固井水泥石自愈合性能的实验方法 (Experimental method for evaluating self-healing performance of gas reservoir cementing cement stone ) 是由 汪杰 于 2021-06-18 设计创作，主要内容包括：一种用于评价气藏固井水泥石自愈合性能的实验方法,包括以下步骤：将高强度碳纤维造孔线穿过管线接头,两端拉直固定在自愈合水泥石模具顶部和底部；将配制好的自愈合水泥浆倒入上述模具内,制作带微孔的水泥石模块；待水泥浆完全凝固成水泥石后,取出碳纤维造孔线,在水泥石外围涂抹树脂胶；使用CT扫描仪测量水泥石模块孔隙大小；将水泥石模块放置于恒温箱内并与气体驱替装置连接,通过注入压力计算水泥石模块渗透率；使用CT扫描仪测量实验后水泥石模块孔隙大小；根据渗透率和孔隙大小变化评价自愈合水泥石受气侵蚀后的自愈合性能。本方法中模型不用施加围压,可有效避免围压对人工孔隙尺寸的影响,实验过程中获取的渗透率下降值更精确。(An experimental method for evaluating the self-healing performance of gas reservoir cementing cement stones comprises the following steps: penetrating a high-strength carbon fiber pore-forming line through a pipeline joint, straightening and fixing two ends of the high-strength carbon fiber pore-forming line at the top and the bottom of a self-healing cement stone mould; pouring the prepared self-healing cement paste into the mold to manufacture a cement stone module with micropores; after the cement paste is completely solidified into the cement stone, taking out the carbon fiber pore-forming line, and smearing resin glue on the periphery of the cement stone; measuring the size of the pore of the cement block by using a CT scanner; placing the set cement module in a constant temperature box and connecting the set cement module with a gas displacement device, and calculating the permeability of the set cement module through injection pressure; measuring the size of the pore of the cement stone module after the experiment by using a CT scanner; and evaluating the self-healing performance of the self-healing cement stone after gas erosion according to the change of the permeability and the size of the pore. In the method, the model does not need to apply confining pressure, so that the influence of the confining pressure on the size of the artificial pore can be effectively avoided, and the permeability reduction value obtained in the experimental process is more accurate.)