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Double-well mutually balanced type direct drive oil pumping machine control system and oil pumping device

A technology of control system and pumping unit, applied in electromechanical devices, pump control, control of mechanical energy, etc., can solve problems such as difficulty in stroke adjustment, short overall life, poor safety, etc., and achieve low cost of equipment transportation and installation, transmission parts The effect of less and simple structure

Inactive Publication Date: 2019-03-19
PETROCHINA CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aiming at the problems of high manufacturing cost, complex structure, difficult stroke adjustment and low efficiency of the overall system of the beam pumping unit, a tower-type direct-drive pumping unit that is balanced by a balance counterweight has been developed in China. Its pumping The structure of the pumping unit is still complex, there are many transmission parts, and the foundation of the pumping unit needs to be prefabricated. The overall life is short and the safety is poor. shock

Method used

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  • Double-well mutually balanced type direct drive oil pumping machine control system and oil pumping device
  • Double-well mutually balanced type direct drive oil pumping machine control system and oil pumping device
  • Double-well mutually balanced type direct drive oil pumping machine control system and oil pumping device

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specific Embodiment approach

[0013] Specific embodiments: the present invention will be described in further detail below in conjunction with accompanying drawing, one machine twin well mutual balance type direct-drive pumping unit oil-pumping device is made up of direct-drive pumping unit control system 1, direct-drive pumping unit 2; The pumping unit 2 is connected with the control system 1 of the direct-driving pumping unit through cables.

[0014] Direct drive pumping unit 2 consists of polished rod 21, square clamp 22, frequency conversion motor 23, gear 24, fastening bolt 25, screw nut 26, ball screw 27, sealing sleeve 28, boss 29, auxiliary spring 30, slide rail cylinder 31. The casing 32 and the bracket 33, wherein the polished rod 21 is connected with the ball screw 27 through the square clip 22, the square clip 22 is fastened by the fastening bolt 25, the frequency conversion motor 23 is installed on the side of the casing 32, and the frequency conversion motor 23 The gear 24 is connected on the...

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Abstract

The invention relates to the technical field of the oil extraction project, and particularly belongs to a double-well mutually balanced type direct drive oil pumping machine control system and an oilpumping device used in the oil field. The problems that a tower type direct drive oil pumping machine is complex in structure, short in integral service life and poor in safety, an oil pumping machinefoundation needs to be prefabricated, and reverse power generation cannot be effectively utilized are solved. The oil pumping device is composed of one direct drive oil pumping machine control system(1) and two direct drive oil pumping machines (2). The double-well mutually balanced type direct drive oil pumping machine control system and the oil pumping device have the advantages that the structure is simple, few transmission components are adopted, transportation and installation are easy, oil pumping machine foundation prefabrication is not needed, the reverse power generation in the oilpumping machine running process can be effectively utilized, the running life of the system can be prolonged, energy consumption is reduced, equipment reliability is high, and the running cost is low.

Description

technical field [0001] The invention relates to the technical field of oil production engineering, in particular to a control system and an oil pumping device of a direct-drive pumping unit with one machine and two wells mutually balanced for an oil field. Background technique [0002] Aiming at the problems of high manufacturing cost, complex structure, difficult stroke adjustment and low efficiency of the overall system of the beam pumping unit, a tower-type direct-drive pumping unit that is balanced by a balance counterweight has been developed in China. Its pumping The structure of the pumping unit is still complex, there are many transmission parts, and the foundation of the pumping unit needs to be prefabricated. The overall life is short and the safety is poor. shock. Contents of the invention [0003] The purpose of the present invention is to design a kind of structure is relatively simple, few transmission parts, do not need to prefabricate the foundation of pum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06F04B47/00F04B17/03E21B43/00H02K7/06
CPCE21B43/121F04B17/03F04B47/00F04B49/06H02K7/06
Inventor 侯宇张凯波王国庆常永奎巩宏亮魏峰王洋戚兴郑东志张明毅汪清波王淼峰徐福军
Owner PETROCHINA CO LTD
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