Automatic cable inverting machine of logging cable

Abstract

The invention provides a cable inverting machine of an oilfield logging cable. The automatic cable inverting machine comprises a fixed bracket, a small shear type lifter, an oil cylinder, a supporting head, a movable bracket, a cable arranging device assembly, a prying frame, an air compressor, a hydraulic station, an operation control console, a lifting bucket and other devices. The logging cable inverting machine can loading a certain tension to a cable of thousands of meters; the cables can be evenly arranged during both winding the cable and unwinding the cable; compared with the original method, the cable inverting machine has the advantages of small space usage, time and labor conservation and better tension control. The cable in a winding drum is prevented from being hoisted to cable inverting equipment by hoisting equipment during cable inverting operation. According to the invention, a cable lifting device, a tension device, a cable arranging device and an automatic control system are integrated with each other; therefore, the cable inverting machine provided by the invention has the advantages of simplicity in operation, orderliness for arranging cables, stable tension and high degree of automation.

Description

technical field [0001] The invention relates to the field of oil field logging cable replacement operations, in particular to an automatic rewinding machine for oil field logging cables. Background technique [0002] The cable used in oil field logging construction is a special cable, the core of which is a multi-core cable, and the outside is wrapped with multiple strands of steel wire rope. In use, the logging cable is repeatedly lowered and brought out into oil and gas wells with a depth of several thousand meters through the cable drum. Due to the depth of the oil and gas well, geothermal, corrosion, repeated operations, wear and other reasons, the logging cable is fragile and needs to be replaced frequently. Due to the particularity of the logging cable, the rope must be arranged neatly on the cable drum, and a certain tension is required. If the rope is not neatly arranged or the tension is uneven, it will cause hidden dangers such as rope jamming and grinding. Work i...

AI Technical Summary

Problems solved by technology

[0003] Because the logging cable is several thousand meters long, it is necessary to use lifting equipment to hoist the cable in the reel to the rope rewinding equipment during rewinding operation. A device that can generate tension is placed between them. At the same time, in order to arrange the rope neatly, the above three need to be kept at a long distance. Therefore, the occupied space is large, time-consuming and labor-intensive, and the tension is not easy to control.

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