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Composite metal material for producing sucker rod

A composite metal material and sucker rod technology, which is applied in the field of composite metal materials, can solve problems such as the influence of the service life of the sucker rod, the high frequency of replacement of the sucker rod, and the increase in the cost of pumping, and achieve excellent mechanical properties and improve welding capabilities and low temperature performance, the effect of reducing the effective pressure

Inactive Publication Date: 2018-06-05
湖州南浔昊骏金属制品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous increase of the oilfield excavation potential, the depth of the oil well pump continues to increase. Due to the harsh underground environment, problems such as the aging of the sucker rod, partial wear of the deviated well, and corrosion are very serious, and the service life of the sucker rod is greatly affected. Replacement of sucker rods, the existing sucker rods are replaced frequently, resulting in increased pumping costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A composite metal material for making sucker rods, characterized in that it includes the following components in weight percentage:

[0032] Tin 0.02%

[0033] Titanium 0.16%

[0034] Chromium 2.2%

[0035] Nickel 0.08%

[0036] Manganese 0.15%

[0037] Silicon 0.3%

[0038] Bismuth 0.035%

[0039] Aluminum 1.4%

[0040] Rare Earth Metals 0.05%

[0041] The rest is iron, and the rare earth metal is a mixture of cerium, yttrium and scandium, and its weight ratio is 1:2:5.

[0042] The present embodiment also provides its preparation method, specifically:

[0043] Step 1, weighing the above-mentioned metals according to the weight percentage;

[0044] Step 2, mixing the above metals together for melting;

[0045] Step 3, after melting, casting and forming in the mold;

[0046] Step 4, quenching treatment;

[0047] Step 5, tempering treatment.

Embodiment 2

[0049] A composite metal material for making sucker rods, characterized in that it includes the following components in weight percentage:

[0050] Tin 0.026%

[0051] Titanium 0.14%

[0052] Chromium 2.3%

[0053] Nickel 0.11%

[0054] Manganese 0.13%

[0055] Silicon 0.5%

[0056] Bismuth 0.034%

[0057] Aluminum 1.6%

[0058] Rare Earth Metals 0.042%

[0059] The rest is iron, and the rare earth metal is a mixture of cerium, yttrium and scandium, and its weight ratio is 3:3:4.

[0060] The preparation method of this embodiment is the same as that of Example 1.

Embodiment 3

[0062] A composite metal material for making sucker rods, characterized in that it includes the following components in weight percentage:

[0063] Tin 0.02%

[0064] Titanium 0.12%

[0065] Chromium 2.1%

[0066] Nickel 0.04%

[0067] Manganese 0.15%

[0068] Silicon 0.7%

[0069] Bismuth 0.035%

[0070] Aluminum 1.8%

[0071] Rare Earth Metals 0.06%

[0072] The rest is iron, and the rare earth metal is a mixture of cerium, yttrium and scandium, and its weight ratio is 1:3:4.

[0073] The preparation method of this embodiment is the same as that of Example 1.

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Abstract

The invention discloses a composite metal material for producing a sucker rod. The composite metal material for producing the sucker rod is characterized by comprising, by weight, 0.02-0.05% of Tin, 0.12-0.16% of Ti, 2.1-2.5% of Cr, 0.04-0.12% of Ni, 0.09-0.15% of Mn, 0.3-0.7% of Si, 0.03-0.035% of Bi, 1.2-1.8% of Al, 0.03-0.06% of rare-earth metal, and the balance Fe. The rare-earth metal is a mixture of cerium, yttrium and scandium, and the weight ratio is (1-3):(2-4):(3-5). According to the composite metal material for producing the sucker rod, the mechanical property, the abrasive resistance, the corrosion resistance, the cold tolerance and the heat tolerance of the sucker rod are greatly improved compared with an existing sucker rod, the service life of the sucker rod is greatly prolonged, the replacing times of the sucker rod are reduced, and the oil pumping cost is lowered.

Description

technical field [0001] The invention relates to a metal material, in particular to a composite metal material for manufacturing an oil pumping unit. Background technique [0002] The sucker rod is an important force transmission part in the pumping unit. Its upper end is connected to the polished rod, and its lower end is connected to the oil pump. However, with the continuous increase of the oilfield excavation potential, the depth of the oil well pump continues to increase. Due to the harsh underground environment, problems such as the aging of the sucker rod, partial wear of the deviated well, and corrosion are very serious, and the service life of the sucker rod is greatly affected. Replacement of the sucker rod, the existing sucker rod replacement frequency is high, resulting in increased pumping costs. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the present invention provides a composite metal material for making a pump...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/50C22C38/04C22C38/02C22C38/06
CPCC22C38/50C22C38/002C22C38/005C22C38/008C22C38/02C22C38/04C22C38/06
Inventor 朱振华
Owner 湖州南浔昊骏金属制品厂
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