In oilfield production, well workover operations are frequently required. During well workover operations, when running and pulling tubing, the tubing end needs to be axially lifted and moved closer to the wellhead. In existing technologies, tubing hoisting operations are often performed manually, resulting in high labor intensity for workers and potential safety hazards.

　　Currently Lifting tubing assembly What are the applications of:

　　1. The lifting tubing assembly is motor-driven, and the output force of the motor drive is limited. The power source used is a vehicle-mounted power source, which will accelerate the damage of the vehicle-mounted power source during on-site construction.

　　2. The selection of chains used in the lifting tubing assembly is limited. Due to the different tubing specifications for running and pulling drills in different oil wells, heavy tubing will accelerate chain damage, and replacing chains will increase construction costs.

　　3. If the transmission gears used by the tubing lifting machine are not sufficiently lubricated under long-term working conditions, this will also accelerate damage.

　　4. The tubing lifting machine has a single function, only lifting the tubing, and cannot move the tubing back and forth.

　　5. Construction sites are often dry and unlubricated. Under such working conditions, the gear shafts on the support of the tubing lifter will be quickly damaged. Although the tubing lifting machine is simple to operate and easy to process, it is not suitable for on-site use and cannot be promoted in various oil fields.

　　In order to solve the above shortcomings, technicians have provided a new type of lifting tubing assembly. This device utilizes the pressure oil output by the workover rig hydraulic pump, and through hydraulic control components and actuators, lifts the tubing to a certain height, realizing mechanical lifting of the tubing instead of manual lifting, reducing the labor intensity of manual lifting and lowering tubing at the downhole operation site, and ensuring construction speed. This lifting tubing assembly is realized through the following technical scheme: A new type of lifting tubing assembly, including a base and a scissor lifting mechanism, the scissor lifting mechanism is installed on the base, cantilevers are hinged on both sides of the base, adjustable supports are provided at the ends of the cantilevers, and permanent magnets are also provided on the side of the base for adsorbing the cantilevers on the base. The top of the scissor lifting mechanism is provided with a trolley A, a trolley B, a moving pulley, a sliding support, and a sliding support drive hydraulic cylinder for driving the moving pulley. Trolley A and trolley B are respectively installed at both ends of the top of the scissor lifting mechanism. The moving pulley is composed of two rows of wheels, and the length direction of the bearing slideway is parallel to the connecting line of the two trolleys. Steel wire ropes are wound around trolley A, trolley B, and the moving pulley. One end of the steel wire rope is fixed to one end of the top of the scissor lifting mechanism, and the other end is sequentially wound around the upper row of wheels of the moving pulley, trolley B, trolley A, and the lower row of wheels of the moving pulley, and then fixed to the other end of the top of the scissor lifting mechanism. The scissor lifting mechanism is driven by a hydraulic cylinder to achieve lifting and lowering actions.