Efficient, intelligent and safe petroleum drilling winch system and control method thereof

Abstract

The invention particularly relates to an efficient, intelligent and safe petroleum drilling winch system and a control method of the drilling winch system. According to the trinity system of the winch structure, the frequency conversion alternating current control mode, the electromagnetic eddy current brake structure and the control mode, the problems that a frequency conversion drilling machine is low in drilling efficiency, poor in down-pass safety and high in system failure rate are solved, wherein the problems trouble users for a long time. According to the technical scheme, the drilling winch system comprises a winch structure part and a winch control part. A winch structure comprises an electromagnetic turbine brake, a disk type brake, a drum shaft assembly and a double gear gearbox. The double gear gearbox is connected with alternating current frequency conversion motors through a clutch and connected with the drum shaft assembly through a clutch, the drum shaft assembly is connected with the electromagnetic turbine brake through a spline, and the disk type brake is connected between the drum shaft assembly and the electromagnetic turbine brake through the spline.

Description

1. Technical field: [0001] The invention specifically relates to an efficient, intelligent and safe petroleum drilling drawworks system and a control method thereof. 2. Background technology: [0002] The AC variable frequency drilling rig has the advantages of easy operation, high control accuracy and reliability; it has an artificial intelligence network platform, and has the following advantages compared with traditional mechanical drive and DC drive drilling rigs: [0003] 1. The drawworks and turntable of the drilling rig can realize stepless speed change and wide speed range; output with extremely low speed and constant torque, it can handle accidents of downhole drilling tools, sidetracking, workover, small mud displacement operations and drilling with optimal parameters The work is very beneficial. [0004] 2. The short-term torque increase multiple of the motor can reach more than 1.5 to 2 times, which greatly improves the lifting capacity and accident handling cap...

AI Technical Summary

Problems solved by technology

[0015] 1. Compared with the DC drive drilling rig, the tripping operation efficiency is low, the drilling cycle is long and the cost is high

[0016] 2. As the drilling engineering technology requires rapid drilling, and the variable frequency drilling rig winch is limited by the lowering control mode, the energy in the lowering process cannot be released quickly, which has a large impact on the voltage of the control system, resulting in a high failure rate of the equipment and a decrease in safety

[0017] 3. The lifting process is limited by the decentralized control mode, resulting in the inability to increase the lifting speed

In order to increase the lifting speed as much as possible and make full use of the motor power, there are many types of winch motors, low standardization and poor interchangeability

[0018] 4. The frequency conversion drilling rig is integrated through simple functions, the drawworks structure and control system have not been systematically matched and designed, and the degree of integration of the drawworks system is low

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