Ultra long stroke beam-pumping unit

Abstract

The invention is an ultra-long stroke oil pumping machine, comprising supporting seat, balance weight dragging piece, flexible oil pumping rod dragging piece, reducing power-driven roller, shaft coupler, electric motor, intelligent control cabinet, base, foundation, braking system, swelling wheel, swelling wheel stand, balance weight shaft, and balance weight, and characterized in that two ends of the power driven roller are supported by the supporting seat and connected with the electric motor on the base through the shaft coupler, one end of the flexible oil pumping rod dragging piece is fixedly wound in the middle of the power-driven roller body and the other end is connected with an oil pump through a continuous oil pumping rod in the oil pumping well, the balance weight dragging piece is composed of two steel wire ropes and nonmetallic rope, one end of each of them is fixedly wound at one end of the reducing power-driven roller body, and the other end is connected with the balance weight placed in an underground balance weight shaft, the swelling wheel is installed on the front-side base by the swelling wheel stand, it can make the flexible oil pumping rod aligned with the well mouth by adjusting the swelling wheel stand, the braking system and the intelligent control cabinet are installed on the base and the base is installed on the foundation.

Description

1. Technical field [0001] The invention relates to an oil production equipment belonging to the field of petroleum industry, in particular to an ultra-long-stroke pumping unit suitable for deep well production. 2. Background technology [0002] Pumping unit is main equipment in the oil exploitation, and the pumping unit of present application all has huge fuselage, and the longest one of stroke is also all less than 10 meters. In recent years, the technology of high-strength flexible continuous sucker rod and flexible traction parts has developed rapidly. For example, carbon fiber flexible continuous sucker rod has high tensile strength, which can greatly increase the depth of the lower pump. However, due to the limitation of the stroke length of the existing pumping unit, it is still necessary to use short-stroke and high-stroke pumping that is prone to invalid strokes. In this way, the technical advantages of the flexible continuous sucker rod cannot be fully utilized, wh...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an ultra-long stroke pumping unit to solve the problem of increasing the oil production stroke in deep well mining, to achieve the purpose of simplifying oil pumping equipment, saving steel materials, reducing costs and improving crude oil production

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