Oil pumping unit based on elastic holding pole traction technology

Abstract

The invention relates to an oil pumping unit based on an elastic holding pole traction technology. The oil pumping unit based on the elastic holding pole traction technology comprises an oil pumping unit main machine (1), a polish rod guide pipe mechanism (2), a well mouth butt joint installation mechanism (3), a polish rod (4) and a drive control system (5), wherein the polish rod guide pipe mechanism (2) is installed on the top face of the oil pumping unit main machine (1); the lower bottom face of the oil pumping unit main machine (1) is installed on the well mouth butt joint installation mechanism (3); the polish rod (4) penetrates through the well mouth butt joint installation mechanism (3) and the oil pumping unit main machine (1); the top end of the polish rod (4) is arranged in the polish rod guide pipe mechanism (2); and the drive control system (5) is arranged beside the oil pumping unit main machine (1) and connected with the oil pumping unit main machine (1) through a cable. According to the oil pumping unit based on the elastic holding pole traction technology, the reliability and safety of holding pole traction are improved, the failure rate is reduced, and the work efficiency is improved.

Description

Technical field[0001]The present invention relates to an oil release machine based on an elastic hugging technique, belonging to the field of oil production technology.Background technique[0002]The peeling machine is an apparatus that will be taken into the ground underground oil. Over a hundred years, the structure and principles of traditional beam pumping machines have not substantially changed. The disadvantage of the beam pumping machine is cumbersome, large, large, transportation and installation and installation, low efficiency, poor safety, and thus constantly trying to overcome these shortcomings (such as using direct drive technology for increasing efficiency) The tower peletrotrifer is launched, but these new pumping machines have all a variety of insufficient due to their own, eventually failed to achieve widespread use.[0003]Patent ZL201520154085.9 introduces a long stroke, a low-frequency pumping machine, but is limited to the fatigue life of the traction rope, the pee...

AI Technical Summary

Problems solved by technology

The disadvantages of the beam pumping unit are bulky, complex structure, large volume, inconvenient transportation, installation and maintenance, low efficiency, and poor safety. Therefore, there are constantly new types of pumping units that try to overcome these shortcomings (such as using direct drive technology to improve efficiency) The tower pumping unit) was launched, but these new pumping units failed to be widely used due to their own shortcomings.

[0003] Patent ZL201520154085.9 introduced a new type of long-stroke, low-frequency pumping unit, but limited by the fatigue life of the traction rope, the pumping unit needs to replace the traction rope frequently, and because the motor must continue Acceleration and deceleration have adverse effects on motor life and control

Patent ZL201920337048.X introduces an alternate grab rod pumping unit. A set of sucker rod lifting and lowering mechanisms are arranged on both sides of the pumping unit, and the two are alternately paralleled by the same set of high-torque and low-speed driving mechanism. Coordinated work, lifting or lowering step by step with the sucker rod, this kind of pumping unit has the disadvantages that the structure is relatively complicated and the sucker rod is easy to be damaged

The patent with the application number CN202010290214.2 discloses a rod-mounted traction pumping unit, which has compact structure, small size, light weight, high safety, and convenient installation and maintenance. The block and the sucker rod are in rigid contact. If there is an uneven surface on the sucker rod, the rod holding block and the sucker rod cannot be completely in close contact, which may cause reliability problems such as slippage and immobility.

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