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Sucker rod centralizer having better universality

A technology of sucker rods and centralizers, which is applied in the direction of drill pipes, drilling equipment, earthwork drilling and production, etc., which can solve the problems of poor versatility and achieve better versatility

Inactive Publication Date: 2016-06-08
CHENGDU LAIBAO PETROLEUM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a sucker rod centralizer with better versatility, solves the technical problem of poor versatility in the existing sucker rod centralizer, and realizes the technical effect of better versatility of the sucker rod centralizer

Method used

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  • Sucker rod centralizer having better universality

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Experimental program
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Effect test

Embodiment 1

[0023] In Embodiment 1, a sucker rod centralizer with better versatility is provided, please refer to figure 1 , the sucker rod centralizer includes:

[0024] Coupling 1, centralizing sleeve 2, pup joint 3, the coupling is set at both ends of the pup joint, the coupling is used to connect and fix the sucker rod, and the centralizing sleeve is set on the outer surface of the pup joint , wherein, said righting cover is provided with N air bag assemblies, said air bag assembly is made up of air bag 4, gas generator 5, igniter 6, and said igniter is connected with said gas generator, and said gas generator Located in the airbag, the igniter is connected to a power source through a control switch 7 .

[0025] Wherein, in the embodiment of the present application, the N airbag assemblies are evenly distributed in the righting sleeve.

[0026] Wherein, in the embodiment of the present application, the centralizing sleeve is cylindrical, and the centralizing sleeve is made of rubber...

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PUM

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Abstract

The invention discloses a sucker rod centralizer having the better universality. The sucker rod centralizer comprises couplings, a centralizing sleeve and a short joint, wherein the couplings are arranged at the two ends of the short joint and used for connecting and fixing a sucker rod, the outer surface of the short joint is sleeved with the centralizing sleeve, N air bag assemblies are arranged in the centralizing sleeve, each air bag assembly consists of an air bag, a gas generator and an igniter, the igniter is connected with the gas generator, the gas generator is located in the air bag, and the igniter is connected with a power supply through a control switch.

Description

technical field [0001] The invention relates to the field of petroleum machinery, in particular to a sucker rod centralizer with better versatility. Background technique [0002] The sucker rod centralizer is an anti-eccentric downhole tool for pumping wells. It is suitable for pumping wells with eccentric wear, especially for pumping wells and directional deviated wells with eccentric wear above the neutral point of the sucker rod. The neutral point of the sucker rod Below, cooperate with the nylon centralizer on the sucker rod body, the anti-eccentric wear effect is better. [0003] The sucker rod moves up and down in the oil pipe. Due to the elastic deformation of the sucker rod, the rod and the oil pipe wall are prone to friction, and the sucker rod is easy to break off. Reduce the friction between the rod and the pipe, and enhance the oil production life of the pumping unit. [0004] Connected to the sucker rod, the outer diameter of the centralizing sleeve is larger ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/10
CPCE21B17/1071E21B17/1014
Inventor 谭正怀
Owner CHENGDU LAIBAO PETROLEUM EQUIP