74results about How to "Fast traction" patented technology

The invention belongs to the field of oil and gas field development and relates to a tractor used for drilling, logging and well repair engineering of a coiled tubing and favorable for the coiled tubing to extend into a horizontal well section for a longer distance. A motor-driven underground tractor for the coiled tubing comprises an upper tractor system, a hexagonal central sliding pipe and a lower tractor system, wherein the upper tractor system comprises an upper supporting unit, an upper electric drive and control unit and an upper traction unit; and the upper tractor system and the lower tractor system have the same structure, and are connected at the upper part and the lower part of the hexagonal central sliding pipe respectively in a sleeving way and mounted in the same or opposite direction. The tractor is directly driven and controlled by a servo stepper motor, so that the dependence on liquid energy in the process of driving the tractor by using circulating liquid and the complexity of control of a hydraulic valve of the circulating liquid on a pipeline are reduced and most of space occupied by the hydraulic pipeline is saved; and the tractor can perform dual-direction traction, is good in stability, flexible in traction and fast in traction speed, can be suitable for underground traction work of small well holes, and can guarantee normal underground liquid circulation in the traction process.

The invention provides a belt shaping conveyor. The belt shaping conveyor comprises a rack, a material collecting box, a first shaping conveying part and a second shaping conveying part; the first shaping conveying part comprises a feeding plate, a plurality of first carrier rollers, a fence, a first guiding roller set and a belt traction device; a knotting induction device is further arranged on the feeding plate; a first induction device and a second induction device capable of detecting the belt capacity are arranged in the material collecting box; the second shaping conveying part comprises a material guiding plate, a triangular carrier roller, a second guiding roller set, a third guiding roller set, a belt tensioning device and a fourth guiding roller set; the belt tensioning device comprises belt pressing flattening devices, a second carrier roller and a balance weight guiding roller set; the belt pressing flattening devices are arranged above the rack; the second carrier roller is arranged between the belt pressing flattening devices; and the balance weight guiding roller set is arranged below the second carrier roller in an up-down lifting manner. The belt shaping conveyor has the beneficial effects that it can be guaranteed that the belt is not knotted when entering the coloring procedure, long time monitoring by a worker is not needed, and the belt can be automatically corrected and flattened.

The invention relates to a large-displacement horizontal well continuous tubing drilling robot, which comprises a former centralizer, a rear centralizer, a front motion short joint, a back motion short joint and an extension shortening section; the front motion short joint, the back motion short joint and the extension shortening section are connected to each other in turns; the former centralizers and the rear centralizers are respectively installed at the front end and the rear end of the front motion short joint and the extension shortening section. The large-displacement horizontal well drilling robot is provided with a mud flow channel, which can circulate mud in tow continuous tubing and drilling, therefore the resistance of mud is reduced to the maximum extent. The large-displacement horizontal well drilling robot can carry on two-way haulage, which can solve the jam problem of the robot to a great extent. The large-displacement horizontal well continuous tubing drilling robot is not only suitable for hot dry rock development, but also suitable for unconventional oil and gas (natural gas hydrate, coalbed methane, tight oil and gas, shale gas) and conventional oil and gas resources development.

The invention discloses a rolling type traction device of a hydrogen fuel-based unmanned aerial vehicle, comprising an unmanned aerial vehicle powered by a hydrogen fuel battery, wherein a quick separation mechanism is arranged at the lower end of a vehicle body of the unmanned aerial vehicle, a supporting plate is arranged at the lower end of the quick separation mechanism, a bracket is mounted at the top of the supporting plate in a rotational manner through a rotary shaft, a shaft rod is arranged at the upper end of the bracket in a protruded manner, a shaft sleeve is movably sleeved on the shaft rod, one end of the shaft sleeve is connected with the quick separation mechanism through a traction cable, a roller mechanism is arranged, away from the shaft rod, at the bottom of the supporting plate, an electric cable is placed in a fixed cavity formed in the upper end of the supporting plate, and is firmly clamped by clamping plates at two sides of the inner wall of the fixed cavity. The rolling type traction device of the hydrogen fuel-based unmanned aerial vehicle disclosed by the invention is mainly used for the conveying of the electric cables and the like in rugged mountain road areas, and can realize quick traction by means of semi-traction of the unmanned aerial vehicle; as the rolling type traction device is partially in contact with ground rollers, electric power consumption of the unmanned aerial vehicle is reduced, cruising ability of the unmanned aerial vehicle is increased, quick separation can be realized, and working efficiency can be increased.