Piece washs fishing tool in horizontal well casing

• Main Authors: WANG JIE, ZHANG WENJING, LIU YINSHUI, HAN MINGXING, FU YONGMEI, MA WENBIN
• Format: Patent
• Language: Chinese; English
• Published: 22.08.2017
• 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 discloses a piece washs fishing tool in horizontal well casing, including last connector, connect urceolus, storage barrel and sawtooth fishing head, be equipped with check valve and venturi generator in connecting the urceolus, the venturi nozzle mouth of venturi generator and the venturi efflux that sets up on being connected the urceolus are managed correspondingly, are equipped with a filtration storage net section of thick bamboo inside storage barrel, are equipped with sawtooth fishing head at storage barrel's lower extreme, are equipped with one -way basket structure in sawtooth fishing head. The utility model discloses a venturi negative pressure principle and instrument rotary jamming deposit suspend in liquid at the debris of the horizontal wall of a well, utilize nozzle spun water under high pressure, based on forming a negative pressure in the jet principle fishing tool, utilize the negative pressure suction, rotary jamming and linear motion's extrusion comprehensive function, it