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Continuous type wear-resisting carbon fiber sucker rod

A technology of sucker rod and carbon fiber, which is applied in the direction of drill pipe, drilling equipment, earthwork drilling and production, etc. It can solve the problems affecting the working efficiency and service life of sucker rod, so as to improve pumping efficiency, service life and good straight line degree of effect

Pending Publication Date: 2020-09-01
大庆丹枫石油技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The concentricity between multi-section sucker rods is likely to affect the operating efficiency and service life of the sucker rods

Method used

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  • Continuous type wear-resisting carbon fiber sucker rod
  • Continuous type wear-resisting carbon fiber sucker rod
  • Continuous type wear-resisting carbon fiber sucker rod

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Embodiment Construction

[0019] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] see Figure 1-4 , Figure 1-4 A continuous wear-resistant carbon fiber sucker rod is shown, including a male head 1 and a female head 6 of the carbon fiber sucker rod, and a protruding part 7 is coaxially provided on the end of the female head 6 opposite to the male head 1, so that The diameter of the protruding part 7 decrease...

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Abstract

The invention relates to the technical field of sucker rods, in particular to a continuous type wear-resisting carbon fiber sucker rod. The continuous type wear-resisting carbon fiber sucker rod comprises a male head and a female head of the carbon fiber sucker rod, wherein one end, opposite to the male head, of the female head is coaxially provided with a bulged part; the diameter of the bulged part is gradually reduced from inside to outside in the axial direction of the female head; a tapered slot which is adaptive to the bulged part in appearance and allows the bulged part to be in slidingfit and blocking is formed in the corresponding male head; the female head is connected to the male head through a fastening part; a plurality of blocking blocks which extend towards the axial outerside are arranged on the shaft end surface, towards the female head, of the male head; and blocking slots for allowing the blocking blocks to block are further formed in the corresponding female head.The continuous type wear-resisting carbon fiber sucker rod has the beneficial effects that: the bulged part is matched with taper of the tapered slot, so that the male head and the female head have better coaxiality; and after the male head and the female head are guaranteed to be mounted, the integral sucker rod has better straightness, so that the service life of the sucker rod is prolonged, and oil sucking efficiency is at least improved to certain extent.

Description

technical field [0001] The invention relates to the technical field of sucker rods, in particular to a continuous wear-resistant carbon fiber sucker rod. Background technique [0002] At present, the sucker rods of oil mining equipment are made of multi-section steel straight rods connected by thick threaded joints. Usually, the depth of an oil well reaches 2000-3000m, and there are as many as 300 sucker rods. Most of the sucker rods are Solid rod. In the oil production industry, carbon fiber sucker rods with better strength and corrosion resistance are usually used in oil pumping operations. The manufacturing process of the sucker rod is relatively simple, which can basically meet the requirements of oil production. The coaxiality between multi-section sucker rods is likely to affect the operating efficiency and service life of the sucker rods. Contents of the invention [0003] The purpose of the present invention is to overcome the problems in the prior art and provi...

Claims

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Application Information

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IPC IPC(8): E21B17/042E21B17/10
CPCE21B17/042E21B17/1085
Inventor 秦立梅
Owner 大庆丹枫石油技术开发有限公司
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