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Force Balance Beam Pumping Unit

A technology of beam pumping unit and pumping unit, which is applied in the direction of exploitation fluid, wellbore/well parts, earthwork drilling and production, etc., which can solve the problems of wear, high energy consumption and low service life of the pumping unit, and achieve energy saving Good effect, reduce wear and prolong service life

Active Publication Date: 2017-08-25
金成群
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the problems of large energy consumption, serious wear and low service life of the existing pumping unit, so as to provide a force-balanced beam pumping unit

Method used

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  • Force Balance Beam Pumping Unit
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Embodiment Construction

[0013] refer to figure 1 , figure 2 The specific embodiment of the present invention is to install the support frame 2 on the base 1 of the pumping unit, the bearing pad holder 17 on the top of the support frame fixes the central shaft 18, the central shaft is connected with the beam 20 through the central shaft bearing seat 19, and the beam 20 The two ends are respectively connected to the donkey head 16 for hanging the counterweight box and the donkey head 21 for hanging the sucker rod. The donkey head 21 for hanging the sucker rod is connected to the donkey head 22 for the sucker rod. Rod 24, hanging counterweight box donkey head 16, hanging counterweight box traction rope 15, hanging counterweight box 11 on the other end of counterweight box traction rope 15, the shaft output shaft of motor 8 on the driving platform 4 and the input shaft of reducer 10 connected, the output shaft 31 of the reducer is connected with the driving wheel 9, and the driving rope 14 is wound on ...

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Abstract

A force-balanced beam pumping unit, characterized in that an intermediary wheel is arranged on the support frame, and the two ends of the driving rope are respectively connected to the donkey head hanging on the counterweight box and the hanging wheel after passing around the driving wheel, the intermediary wheel and the guide wheel in turn. On the donkey head of the sucker rod, a drive platform is movably connected to the base of the pumping unit. The motor, reducer and drive wheel are all arranged on the drive platform, and a sand box is arranged below the drive platform. The invention adjusts the weight of the sand box so that when the pumping unit is in normal operation, the force difference between the tight side and the loose side of the driving rope on both sides of the driving wheel is close to half of the weight of the oil column, and the traction force of the two donkey heads on the whole machine At this time, the driving rope overcomes a part of the friction and works, thus producing energy saving effect, reducing the wear of the pumping unit and prolonging the service life of the pumping unit.

Description

technical field [0001] The invention relates to an oil production machine, in particular to a force-balanced energy-saving beam pumping unit. Background technique [0002] In the case of energy shortage and severe power shortage, energy saving has become a very important issue. The pumping unit is the main production equipment in the oilfield. For low permeability oilfields, the formation of the oil level is relatively slow, and most of the pumping units are idling for a long time, which will waste a lot of electric energy, cause the wear of the pumping unit, and reduce the oil pumping rate. machine life. [0003] At present, there are two kinds of pumping units commonly used at home and abroad: beam pumping unit and balance beam pumping unit. Conventional beam pumping units are relatively reliable in performance, but consume a lot of energy. The balance beam pumping unit runs smoothly and consumes less energy than the beam pumping unit, but it is not ideal. Its driving ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00
CPCE21B43/121E21B43/127
Inventor 金成群金辉光
Owner 金成群
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