In particular, the invention relates to an open-hole well completion tool and a well completion construction technology. Open-hole anchoring flushing type hand dropper, including
upper joint upper joint, torque head, ball, inner sliding sleeve, mandrel, inner flushing
pipe,
ferrule, screen tube, pin, clamping teeth, sliding ring, shear nail, sliding ring , and is formed by connecting the above components. During construction, the screen
pipe and the inner flushing
pipe go downhole together. After the flushing construction is completed, the pressure ball is put in to anchor the dropper to the downhole, and the pressure is continuously applied, and the
upper joint is lifted up to realize the upper joint, the ball, and the inner flushing. The pipe is pulled out together, and the screen remains in the well. The
ferrule of the present invention has a unique design, so that small tools can be suspended in a large
wellbore, such as a 90mm tool can be riveted in a 130mm
wellbore, and the screen pipe and the inner flushing pipe go downhole together for flushing operations; The
diameter of the borehole is expanded, and then the screen pipe is run, resulting in unsmooth construction and frequent
rework, and in serious cases, the
wellbore will be scrapped.