Low-density ball salvaging device

• Main Authors: ZHOU LIN, RAN ZHAOHUI, DUAN WENGUANG, WANG LIUBIN, CHI CHONGRONG
• Format: Patent
• Language: Chinese; English
• Published: 28.08.2013
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model relates to the technical field of salvaging devices in fracturing operation of special and complicated wells such as horizontal wells and branch wells, and discloses a low-density ball salvaging device. The low-density ball salvaging device comprises a barrel and a spring piece, wherein the lower end of the spring piece is fixed on an inner wall of the lower part of the barrel; the upper end of the spring piece is positioned in a center shaft of the barrel; and an included angle between the spring piece and the inner wall of the barrel is an acute angle. The low-density ball salvaging device is reasonable and compact in structure, and convenient to use, and has the characteristics that the low-density ball salvaging device is high in salvaging success rate, high in reliability, simple in structure, and easy and simple to operate, and provides a base for subsequent work in a low-density ball salvaging process.