酸化压裂方法在碳酸盐岩热储层中的应用

Application of acidifying & fracturing technology to carbonate rock reservoir

摘要: 针对天津市碳酸盐岩热储层由于堵塞等原因导致渗透性减弱的情况,探讨了酸化压裂方法对该热储层地热井产能和回灌能力的增强作用,并结合工程实例对酸压技术原理、适用条件、技术要点及增产回灌实际效果等几个方面进行介绍。提出针对适合的碳酸盐岩热储层,选用合理的酸化压裂工艺进行处理,从选择酸压段、室内实验研究、前置液设计、酸液种类选择及排酸等多方面进行控制,可以有效增加地热井产能和回灌能力,促进地热资源的可持续利用。

Abstract: This paper describes the application of technology of acidifying & fracturing to carbonate rock reservoir.The enhanced effect,technical elements,suitable conditions,technical cruces are discussed with a combination of the practical projects.The results indicate that acidifying & fracturing can increase the permeability of the reservoir and recuperate the reinjection ability of the carbonate-rock reservoir. 更多还原