石油与天然气化工2025，Vol.54Issue(5)：17-25,9.DOI:10.3969/j.issn.1007-3426.2025.05.002
超深超高温碳酸盐岩储层酸压改造酸液技术研究进展及展望
Advance and prospect of acid system technology for stimulation in ultra-deep and ultra-high temperature carbonate reservoirs
摘要
Abstract
Objective Acid fracturing serves as a core technology for controlling reserves and enhancing production in ultra-deep carbonate reservoirs.The acidizing fluid system functions as"lifeblood"of acid fracturing engineering,which is crucial for the innovation of acid fracturing technology and the improvement of reservoir stimulation effects.Therefore,it is essential to review the current state of acid fracturing technology for ultra-deep carbonate reservoirs and outline potential directions for future research.Method Based on the literature pertaining and engineering practicing,the performance differences between hydrochloric acid-based and non-hydrochloric acid-based retarded system were comparativly analysed.Result Hydrochloric acid-based retarded acid systems primarily consist of viscosificatio retarding gelled acid,cross-linked acid,diversion acid,and H+-shield adsorption ratarded single phase acid;the non-hydrochloric retarded acid mainly included the composited organic acid and self generating hydrochloric acid,which controlled the production rate of H+.The differences of different acid system fracturing and etching mechanism were apparent.Conclusion The current acidizing fluid systems are capable of meeting the requirements for reservoir stimulation at temperatures below 180℃.However,for high-temperature applications exceeding 180℃,further research is required in key areas such as the development of functional additives,formulation of acidizing fluid systems,mechanistic analysis,and integration of application technologies in order to achieve technical breakthroughs.关键词
超深层/超高温/碳酸盐岩/酸液体系/酸压模型Key words
ultra-deep reservoirs/ultra-high temperature/carbonate reservoirs/acidizing fluid system/acid fracturing model引用本文复制引用
郭建春,肖彬,刘子豪,苟波..超深超高温碳酸盐岩储层酸压改造酸液技术研究进展及展望[J].石油与天然气化工,2025,54(5):17-25,9.基金项目
国家自然科学基金项目"四川盆地深层含硫碳酸盐岩气藏立体酸压基础研究"(U21A20105) （U21A20105）
四川省科技教育联合基金面上项目"超深碳酸盐岩储层在线变黏酸压实时调控水力裂缝导流能力机制"(2024NSFSC2004) （2024NSFSC2004）
