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Method and device for adjusting balance of beam pumping unit

A beam pumping unit and balancing technology, which is applied in the direction of liquid variable capacity machinery, earthwork drilling, mechanical equipment, etc., can solve problems such as active power imbalance, achieve better balance adjustment effect, and avoid adjustment balance effect bad effect

Active Publication Date: 2018-07-13
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By detecting the active power curve of the beam pumping unit motor, it is found that the active power of a large number of beam pumping units that have been balanced by the current method is very unbalanced

Method used

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  • Method and device for adjusting balance of beam pumping unit
  • Method and device for adjusting balance of beam pumping unit
  • Method and device for adjusting balance of beam pumping unit

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046]Such as figure 1 As shown, the embodiment of the present invention provides a method for balancing a beam pumping unit, including:

[0047] Step 101, acquiring the balance parameters of the beam pumping unit.

[0048] Among them, the parameters of adjusting the balance include the weight of each crank balance weight, the quantity of the crank balance weight, the initial position of the crank balance weight, the ground efficiency of the beam pumping unit...

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Abstract

The invention provides a walking-beam pumping unit balance adjusting method and device and relates to the technical field of walking-beam pumping units. The method includes the steps that all balance adjusting parameters of a walking-beam pumping unit are obtained and include the weight of each crank balance block, the number of the crank balance blocks, the initial positions of the crank balance blocks, the ground efficiency of the walking-beam pumping unit and polish rod stroke frequency of the walking-beam pumping unit; upstroke average power and downstroke average power of the walking-beam pumping unit are obtained through an active power tester connected with the walking-beam pumping unit; accordingly, a balance adjusting coefficient is determined; then the balance adjusting distance is determined; and a target position is determined according to the initial positions of the crank balance blocks and the balance adjusting distance, and the crank balance blocks are adjusted to the target position. By means of the walking-beam pumping unit balance adjusting method and device, walking-beam pumping unit balance adjusting can be performed through active power, and the balance adjusting effect of the walking-beam pumping unit is better.

Description

technical field [0001] The invention relates to the technical field of beam pumping units, in particular to a method and device for balancing a beam pumping unit. Background technique [0002] At present, the beam pumping unit has become one of the main types of pumping units used in oil fields due to its reliable performance, simple structure, and convenient operation and maintenance. [0003] When the beam pumping unit is used, it is necessary to measure and adjust the balance of the beam pumping unit, and the current method is more common. The specific method is: use an AC ammeter to detect the maximum value of the motor current when the donkey head of the beam pumping unit goes up and down, and the standard for adjusting the balance operation is the maximum value of the motor current when the donkey head of the beam pumping unit goes up and down near. By detecting the active power curve of the beam pumping unit motor, it is found that the active power of a large number...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00F04B47/14
CPCE21B43/121E21B43/127F04B47/14
Inventor 师俊峰赵瑞东陶珍陈仲璀马文明张鑫张建军孙成岩熊春明张安廷
Owner PETROCHINA CO LTD
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