DK84B Packing Sliding Sleeve Opening Tool

Model “DK-B” packing sliding sleeve opening tool is used for the opening of Model “S-B” packing sliding sleeve in RFMS new primary multilayer high-speed fracturing system, which can realize the one-way opening of sliding sleeve, and can realize the opening and closing of sliding sleeve with DG-B type sliding sleeve closing tool. The switch tool realizes the opening and closing of the sliding sleeve under the joint action of the unilateral switch claw and the spring device, the upper lifting pipe string makes the sliding sleeve close, and it will not be opened when it is lowered, and after the sliding sleeve is closed, the unilateral gripper of the switch tool is retracted under the effect of the limiting sleeve, so as to propose the packing sliding sleeve. The elastic mechanism and unidirectional property of DK-B / DG-B slide sleeve switch tool can effectively prevent misswitching S-B slide sleeve when lifting and lowering it. At the same time, its shear device can realize the recovery of the tools in the emergency state.