Flow motivating type infinite loop well flushing tool

• Main Authors: SHI QINGTIAN, SHI YUHENG, MA YUCHEN, LI WEI, LIU XINYI, LIU DEJU, LYU YINGCHEN, DONG MENGCHEN, DONG YA
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2019
• 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 invention discloses a flow motivating type infinite loop well flushing tool. The flow motivating type infinite loop well flushing tool comprises a main barrel, an upper connector, a lower connector, an upper core shaft, a lower core shaft, a piston, a transposition spring, a transposition member and a limiting member. A through hole and an upper core shaft by-pass through hole are formed in the upper core shaft, a blind hole and a lower core shaft by-pass through hole are formed in the lower core shaft, a transposition groove and a piston by-pass through hole are formed in the piston, anda water hole is formed in the main barrel. The piston can realize circumferential switching of the piston through the cooperation of the transposition groove and the transposition member, the piston can realize the axial switching of the piston through the cooperation of the piston and the limiting member, so that the infinite loop switching of a flow channel is realized, the reaction speed is high and the influence of an