Titanium alloy, polish sucker rod made of titanium alloy and application of polish sucker rod

A technology of oil pumping polished rods and titanium alloys, which is applied in the direction of drill pipes, drill pipes, casings, etc., can solve the problems of only 1 to 6 months of service life, affect the production efficiency of oil fields, and high production costs of oil production, and achieve comprehensive performance Prominence, weight reduction, high wear resistance effect

Active Publication Date: 2014-03-26
BEIJING GRAND TITANIUM TRADE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the effect is not ideal, and the service life of this kind of oil pumping polished rod is generally only 1 to 6 months
Frequent replacement of oil pumping polished rods not only results in high cost of oil production, but also seriously affects the production efficiency of the oil field

Method used

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  • Titanium alloy, polish sucker rod made of titanium alloy and application of polish sucker rod
  • Titanium alloy, polish sucker rod made of titanium alloy and application of polish sucker rod

Examples

Experimental program
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Embodiment 1

[0031] Grade 1 sponge titanium dried in an electric furnace at 150℃×2h, and Al-Mo alloy, Al-Si alloy, Al-V alloy, pure aluminum and pure zirconium chips, etc., are pressed into electrode blocks by a 2500t hydraulic press according to a certain ratio. Vacuum welding in the consumable electric arc furnace, smelting three times in the vacuum consumable electric arc furnace to form an ingot of Φ400×1500mm, and then peeling off the skin, removing the riser and the bottom on the lathe, the actual ingot size after lathing is Φ382×1450mm; Then take samples from the upper and lower parts of the ingot (the upper part is marked as 1#, and the lower part is marked as 2#) to detect the chemical composition and hardness; conduct ultrasonic flaw detection, size and surface quality inspection on the riser part of the ingot, and then polish the The ingot is heated by an electric furnace, free forged, and forged into a square bar. After being ground by a grinding wheel, the bar rolling machine i...

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Abstract

The invention relates to titanium alloy, which is characterized by comprising the following ingredients in percentage by weight: 4 to 8 weight percent of Al, 2 to 5 weight percent of Mo, 2 to 4 weight percent of V, 0.5 to 3 weight percent of Zr, 0.1 to 1 weight percent of Si, 0.02 to 1 weight percent of Fe, 0 to 0.4 weight percent of other impurities and the balance Ti. The invention also relates to a polish sucker rod made of the titanium alloy and an application of the polish sucker rod to oil well equipment.

Description

technical field [0001] The invention relates to a titanium alloy and an oil pumping polished rod manufactured therefrom, belonging to the field of petroleum equipment. Background technique [0002] Rod pump oil production equipment is the main oil production equipment at home and abroad at present, including three parts: surface pumping unit, downhole sucker rod string (composed of oil pumping polished rod, sucker rod and coupling) and oil well pump. As an important part of the rod pump oil production equipment, the working environment of the oil pumping rod continues to deteriorate. With the increase of deep oil wells, heavy oil wells and high water-cut wells, the load on the oil pumping rods continues to increase, and at the same time, they must also bear the corrosion of the oil well output fluid. In the oil extraction industry, the requirements for the performance of oil pumping rods are increasing day by day. [0003] At present, surface chemical nickel plating and el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/02E21B17/00
Inventor 杨林
Owner BEIJING GRAND TITANIUM TRADE
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