Electric hydraulic pressure workover treatment machine

Abstract

The invention relates to an electro hydraulic pressure well repair operating machine which is composed of a bottom vehicle, a winch, a head frame and roving system, an operating room, a motor, a hydraulic pressure variable displacement pump, a hydraulic pressure motor a speed change box, a multi-way reserving valve, a motor transferring case, a hydraulic pressure oil tank, a controlling valve block, a hydraulic pressure jigger winch, a cable winding drum, an electrical cabinet, a braking system, an electrical controlling system and an auxiliary system, the operation and the control of the electro hydraulic pressure well repair operating machine provided by the invention is convenient, a pump controlling system, the throttle is not lost, the energy consumption is low, the utilization ratio and working efficiency of the energy are high, the effect of the energy conservation is obvious, the standby power can be utilized to work on the condition of being short of the power sources on the site, and the normal oil-water well repair operation is ensured.

Description

Technical field: [0001] The invention relates to an engineering technical equipment used for well workover and downhole operation of oil and water wells in oil fields. Background technique: [0002] The workover machine is the main equipment for downhole operations in the production process of oil and water wells in oil fields. The conventional workover rig uses a diesel engine as the power machine, and the power is divided into two routes through the main gearbox. One route drives the drum to rotate through the drawworks drum gearbox to complete the operation of lifting and lowering the pipe string; the other route drives the workover rig to travel through the central transmission mechanism. . Workover and walk do not work at the same time. After continuous improvement, conventional workover rigs have basically met the needs of oilfield workover operations, such as the ability to increase working speed, but there are still unreasonable energy utilization and other unsatis...

AI Technical Summary

Problems solved by technology

After continuous improvement, conventional workover rigs have basically met the needs of oilfield workover operations, such as the ability to increase working speed, but there are still unreasonable energy utilization and other unsatisfactory features, such as:

[0003] 1. The rated power of conventional workover rigs has reached 160-269 kilowatts, but the time when the rated power can be used in workover operations is very little, resulting in a waste of equipment capacity;

[0004] 2. The crawler operating machine does not carry the derrick due to its own characteristics, and its transportation performance is not good;

[0005] 3. High fuel consumption;

[0006] 4. High noise at the job site;

[0007] 5. Due to the excessive speed of lowering, it is easy to bring hidden dangers of safety accidents, and the heat dissipation of the brake hub of the winch is poor, which affects its service life

[0008] At present, there are basically two types of electric workover rigs: one is the electrohydraulic energy storage workover rig, which adopts electric, hydraulic transmission, liquid energy storage, and combined oil cylinder lifting technology. 1. As the main working parts, gas components require high precision and are difficult to maintain; secondly, the energy storage time is not enough, and the energy-saving effect is not ideal; thirdly, it is difficult to fully meet the on-site work requirements in terms of speed control

The other is the electric AC variable frequency workover rig, although it can realize stepless speed change and energy saving within a certain range, but the load range of the workover rig is large, it is difficult to realize stepless speed change within the entire load range; in addition, the cost of the frequency converter is high , has high requirements on the working environment and requires professional maintenance, and it needs to pass the test of practice when used in the field workover site

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