Tower type oil sucking machine

A tower pumping unit and sucker rod technology, which is applied in the production of fluids, wellbore/well components, earth-moving drilling, etc., can solve the problem of high power consumption, low operating efficiency of beam pumping units, and reliable transmission chain. The performance and service life restrict the development of beamless pumping units, so as to improve the service life and avoid impact.

Inactive Publication Date: 2015-01-07
BEIHANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the beam pumping unit has low operating efficiency and consumes a lot of electricity. According to statistics, its efficiency is only about 15%-20%.
With the application of various new transmission devices, various beamless pumping units have also appeared on the produ

Method used

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  • Tower type oil sucking machine
  • Tower type oil sucking machine
  • Tower type oil sucking machine

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example one:

[0020] Such as figure 1 As shown, the motor 5 is fixedly arranged on the frame 1, and the motor 5 drives the fixed pulley 2 to rotate, driving the counterweight 4 and the sucker rod to move up and down in the opposite direction.

Example Embodiment

[0021] Embodiment two:

[0022] Such as figure 2 As shown, the tower pumping unit further includes a chain 6, which is connected end to end to form a closed loop, the counterweight 4 is fixedly connected to the chain 6; the motor 5 is fixedly arranged on the frame 1, and the motor 5 drives The chain 6 drives the counterweight 4 and the sucker rod to move up and down in the opposite direction. That is, the chain 6 driven by the motor 5, the two ends of the chain 6 are connected end to end to form a closed loop, and the counterweight 4 is fixedly connected to the chain 6. It can be understood that the counterweight 4 is connected between the chain 3 and the chain 6 mentioned above. Driven, it can move up and down.

[0023] Optionally, the tower pumping unit also has a chain positioning device, which is used for positioning the chain and restricting the movement path of the chain. Optionally, there are at least two chain positioning devices: a first chain positioning device and a s...

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PUM

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Abstract

The invention relates to a tower type oil sucking machine, which comprises a machine frame, fixed pulleys, a connecting chain, a balancing weight, a sucker rod and a motor, wherein the fixed pulleys are arranged at the top end of the machine frame; the connecting chain is transmission cooperation with the fixed pulleys; the two ends of the connecting chain are respectively connected with the balancing weight and the sucker rod; the motor drives the balancing weight and the sucker rod to vertically move in opposite directions; the tower type oil sucking machine also comprises spring groups; the spring groups are fixedly arranged on the machine frame and are right against the balancing weight; and the spring groups can be compressed by the balancing weight in the vertical moving process of the balancing weight. In the upstroke and the downstroke of the oil sucking machine, the speed cannot suddenly change due to the effect of the spring groups; the acceleration cannot suddenly change; the occurrence of impact is avoided; and the service life of an oil sucking machine system is prolonged.

Description

technical field [0001] The invention relates to oil extraction equipment, in particular to a tower pumping unit. Background technique [0002] In oilfield production, mechanical lifting equipment is the main energy-consuming equipment. According to statistics, the annual energy consumption and electricity consumption of mechanical oil recovery system in my country has exceeded that of water injection system, becoming the largest energy-consuming household in oilfield production. More than 85% of the mechanical oil recovery systems used in oil fields are rod pumping systems. The beam pumping unit is a traditional oil pumping equipment widely used in oil fields. Usually, an AC asynchronous motor is connected to a four-bar linkage mechanism to drive the sucker rod through a reduction box, and drives the downhole pump to reciprocate up and down to deliver the downhole oil to the Come on the ground. Because of its simple structure, high reliability, convenient maintenance and o...

Claims

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Application Information

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IPC IPC(8): E21B43/00
CPCE21B43/00
Inventor 孟宏君王占林许建中郭全
Owner BEIHANG UNIV
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