Reasonable matching method of walking beam type pumping unit and electromotor

A technology of beam pumping unit and matching method, which is applied in the fields of electric digital data processing, aerodynamic improvement, special data processing application, etc., and can solve problems such as unreasonable matching of working characteristics of pumping unit and electric motor

Inactive Publication Date: 2014-01-08
NORTHEAST GASOLINEEUM UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to provide a reasonable matching method between the beam pumping unit and the electric motor,

Method used

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  • Reasonable matching method of walking beam type pumping unit and electromotor
  • Reasonable matching method of walking beam type pumping unit and electromotor
  • Reasonable matching method of walking beam type pumping unit and electromotor

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Embodiment Construction

[0062] Below in conjunction with accompanying drawing, the present invention will be further described:

[0063] This reasonable matching method of the beam pumping unit and the motor,

[0064] Step 1. Establish a pumping unit database, which is used to call relevant parameters when calculating the motion and power of the pumping unit system.

[0065] The database includes geometric structure dimensions of several models such as conventional machine, different camera, and double donkey head machine. According to the three-dimensional geometric model, the moment of inertia of all moving parts is calculated in PRO / E.

[0066] The database also includes the initial pumping parameters of the matched well: stroke, stroke times, pump hanger, pump diameter, etc.

[0067] The database also includes working condition parameters of tested matched wells: oil pressure, casing pressure, water cut, fluid level, crude oil density, crude oil viscosity.

[0068] Step 2: Establish the motor d...

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Abstract

The invention relates to a reasonable matching method of a walking beam type pumping unit and electromotors. The method comprises the steps that firstly, a pumping unit database is built; secondly, an electromotor database is built; thirdly, a rod tube database is built; fourthly, four-bar linkage movement calculation is conducted on the pumping unit; fifthly, polished rod loads of a rod pumped well are calculated; sixthly, the torque of a reduction gearbox is calculated; seventhly, input end parameters of the driving electromotor are calculated; eighthly, the seventh step is repeated, and calculation is conducted on input end parameters of each one of a three-phase asynchronous electromotor, a double-power electromotor, a high slip electromotor and a permanent-magnet synchronous electromotor; ninthly, reasonable matching is conducted on the matched rod pumped well and the electromotor, calculation results of the eighth step are compared with a standard configuration electromotor scheme, and after screening based on constraint conditions is conducted, the scheme having the highest comprehensive electricity-saving ratio is the optimized electromechanical reasonable matching scheme. The method is beneficial to improving the power utilizing rate and efficiency of a driver electromotor, improving the current situation of 'big Mara trolleys', and achieving energy saving and emission reduction.

Description

[0001] 1. Technical field: [0002] The invention relates to the technical field of oil production technology of a beam pumping unit, in particular to a reasonable matching method of a beam pumping unit and a motor. 2. Background technology: [0003] The beam pumping unit is simple in structure, reliable and durable, and plays a leading role in the application of mechanical oil production equipment. However, due to the structural characteristics of the beam pumping unit itself, it has negative torque, periodic fluctuations, or over-torque when the balance is not good during operation. Therefore, the simple measure in many oil fields is to increase the installed power of the motor. That is, "big horse-drawn carts", resulting in a great waste of energy. According to statistics, there are as many as 160,000 organic production wells in my country, and there are more than 50,000 wells in Daqing Oilfield alone. The power consumption of mechanical production wells accounts for on...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCY02T10/82
Inventor 冯子明姜民政李红梅刘维凯董康兴顾慧彬
Owner NORTHEAST GASOLINEEUM UNIV
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