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Novel pumping rod

A sucker rod, a new type of technology, is applied in the direction of drill pipe, drilling equipment, earthwork drilling and production, etc. It can solve the problems of low reliability of sucker rod, inability to fully meet the needs of use, and limited service life, and achieve corrosion resistance and Outstanding anti-oxidation ability, improved performance, and the effect of improving performance

Inactive Publication Date: 2012-12-26
常熟市石油固井工具有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Most of the current sucker rods are made of 20CrMo and strengthened by heat treatment, but the sucker rods made of this material are not reliable in work, and the service life is limited. For the increasing alternating load in work, this The sucker rod made of this material cannot fully meet the needs of use

Method used

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Embodiment Construction

[0012] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0013] The sucker rod is made of high-performance alloy steel. The main components and percentage ratios of the high-performance alloy steel are as follows: C 0.12%-0.18%, Si 0.45%-0.85%, Mn 2.2%-3.2 %, Cr 1.0%-1.4%, Ni 0.1%-0.3%, Al 0.12%-0.3%, Co 0.06%-0.12%, B 0.001%-0.004%, and the rest is Fe.

[0014] The main components and percentage ratios of the sucker rod in the new sucker rod mentioned in the present invention are as follows: C 0.15%-0.18%, Si 0.55%-0.75%, Mn 2.7%-3.0%, Cr 1.2% -1.3%, Ni 0.15%-0.25%, Al 0.18%-0.24%, Co 0.08%-0.1%, B 0.002%-0.003%, and the rest is Fe; the C elements in alloy steel materials are mainly the following bainite, It exists in the form of ferrite and a small...

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Abstract

The invention discloses a novel pumping rod which is made of a high-performance alloy steel material. The high-performance alloy steel material comprises the following main components: 0.12-0.18% of C, 0.45-0.85% of Si, 2.2-3.2% of Mn, 1.0-1.4% of Cr, 0.1-0.3% of Ni, 0.12-0.3% of Al, 0.06-0.12% of Co, 0.001-0.004% of B and the balance of Fe. The novel pumping rod disclosed by the invention is reasonable in the preparation of the components; the prepared pumping rod has sufficient strength, rigidity, toughness and cutting performance and excellent corrosion resistance and oxidation resistance; the service performance of the material can be improved and increased through thermal treatment.

Description

technical field [0001] The invention relates to a sucker rod, in particular to a novel sucker rod with reasonable chemical composition and superior performance, which belongs to the technical field of petroleum accessories. Background technique [0002] Mechanical oil extraction is the main method of oil extraction in the oil extraction industry. With the rapid development of the international and domestic petroleum industries, mechanical oil recovery technology has made great progress, and the supporting level of technical equipment has been continuously improved, forming four types of oil recovery, including rod pumps, hydraulic piston pumps, submersible electric pumps and air pumps. Wherein, rod pumping is realized by a rod pumping system based on a sucker rod, a pumping unit and a pump. Driven by the pumping unit, the sucker rod drives the plunger of the pump to reciprocate up and down to pump the oil to the ground. [0003] The actual working environment of the sucker...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/58E21B17/00
Inventor 陈小华
Owner 常熟市石油固井工具有限公司
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