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四川地区压裂酸化已成为有效改善储层渗流条件、提高单井油气产量的必要手段。经过40多年来的实践，特别是近年来通过技术引进和科技攻关，四川压裂酸化已逐步形成了工艺技术配套化、入井材料系列化、设计软件系统化、现场作业标准化的服务特色。文章从四川石油管理局井下作业处的施工作业能力出发，重点介绍了近年来四川地区压裂酸化的一些特色技术，体现了四川地区近年压裂酸化技术的新进展，并对压裂酸化技术下步的发展提出了初步的建议。

NEW DEVELOPMENT IN FRACTURE ACIDIZING TECHNIQUES IN SICHUAN

Fracture acidizing has become a necessary measure for improving effectively reservoir percolation flow condition and enhancing individual well oil/gas producting rate in Sichuan.Through practice for more than forty years,especially through the technological introduction and the scientific and technological key projects′ being resolved in recent years,the fracture acidizing in Sichuan has gradually formed these service features,such as technological completeness,tripping in hole material serialization,design software systematization and on site operation standardization,etc.Proceeding from the operation capability of the Downhole Operation Department of SPA,the authors introduce emphatically some characteristic techniques of the fracture acidizing in Sichuan,which embodies the new development in fracture acidizing techniques in Sichuan in recent years,and make a primary suggestion on further developing the techniques.