Auxiliary feeding device for flexible pipe of radial horizontal well

摘要

An auxiliary feeding device for a flexible pipe of a radial horizontal well, comprising an oil pipe, a steering gear connected to the oil pipe at a lower opening, and two impellers. Each of the impellers comprises an impeller shaft, a barrel body and at least three blades fixed outside the barrel body and provided at a top thereof with a notch, where the two impeller shafts are parallel to each other. The two impellers are parallel and are synchronously rotated, and the notches on two sides of the inlet are in one-to-one correspondence relation to form a holding passage that can clamp the flexible pipe.