申请号：PCT/CN2017/089096

发明作者：张逸群,刘亚,李根生,黄中伟

专利状态：专利申请

专利类型：发明专利

专利名称：ENERGY-CONCENTRATING AND NEST-SHAPED STRUCTURE-FORMING BUNDLE DEVICE FOR PREVENTING LOST CIRCULATION AND REINFORCING BORE WALL, AND APPLICATION THEREOF IN PREVENTION OF LOST CIRCULATION IN KARST CAVITY