Swinging double-well pumping unit

Abstract

The invention aims to provide a swinging double-well pumping unit, which solves the technical problems of high manufacturing and using costs, high energy consumption and frequent positive and negative rotation in technical background. A crank wheel is used as a core transmission component, a crank arm is fixedly arranged on the crank wheel, a part of the crank arm extends out of the circumferential outer edge of the crank wheel, a permanent magnet synchronous motor is generally selected as a power source, and the crank wheel is coaxial with a main shaft of the permanent magnet synchronous motor; or an asynchronous motor is used as a power source, and the crank wheel is coaxial with a power output shaft of a speed reducer driven by the asynchronous motor; and the pumping unit is also provided with a crank connecting rod, one end of the crank connecting rod is in matched connection with the crank arm through a (crank arm) shaft pin, and the other end of the crank connecting rod is in matched connection with the lower part of a swing link through a swing link shaft pin. The permanent magnet synchronous motor can directly drive the double-well pumping unit without frequent positive and negative rotation, and the motor is in a uniform motion state, so the double-well pumping unit has the advantages of high running reliability, simple and convenient control and low maintenance cost.

Description

Technical field [0001] The invention relates to a swing type dual-well pumping unit applied to oil wells in an oil field, and also relates to a coaxial connection multi-point drive dual-array oil well pumping unit. Background technique [0002] Most of the existing oil wells are configured with one machine and one well, and a few are equipped with two oil wells and one machine. In plateau and ravine areas, due to the scarcity of flat land, directional inclined wells are often used to form array wells. The artificial islands have limited land resources, so many use Draining wells, pumping oil with one unit, two wells or even multiple wells can greatly reduce energy consumption, reduce oil production costs, and save equipment investment. Various oilfield companies actively promote the application of cluster well groups with small area and high utilization efficiency, and have achieved obvious results. Cluster well refers to the drilling of several or even hundreds of wells on a wel...

AI Technical Summary

Problems solved by technology

[0011] The present invention aims to provide a swinging double-well arrangement pumping unit and its well-draining combination, which solves (1) the problem mentioned in the technical background, and solves the problem that the other side of the beam pumping unit consumes energy and does not perform work for a long time; (2) Solve the technical problems such as high cost, poor practicability, frequent maintenance, complicated and cumbersome controllers caused by the leakage of the sprocket chain and the deformation of the hydraulic cylinder of the existing double well pumping unit and the need for frequent forward and reverse rotation during control

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