Cavity making tool for salt cavern gas storage

• Main Authors: JIA MIN, SHE ZHICHENG, LIU YAN, LIU RUIYING, LI JUN, WANG HAOYU, LI NAN, LI FUTANG, ZHANG YI, CAO GUANGQIANG, LI QIANG, WANG YUN
• Format: Patent
• Language: Chinese; English
• Published: 21.05.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The invention provides a cavity making tool for a salt cavern gas storage. The cavity making tool comprises an outer pipe (1), an inner pipe (2), a first universal steering short section (3), a second universal steering short section (3'), a guide pipe (4), a steering power short section (5) and a nozzle (6); the inner pipe is sleeved with the outer pipe; the upper end of the first universal steering short section is connected with the outer pipe, and the lower end is connected with the guide pipe, so that the outer pipe and the guide pipe can rotate relatively; the upper end of the second universal steering short section is connected with the inner pipe, and the lower end is connected with the steering power short section, and the inner pipe and the steering power short section can rotate relatively; the nozzle is arranged at the bottom of the steering power short section; and the inner pipe, the second universal steering short section, the steering power short section and the nozzle are sequentially connect