In the 1980s, the research and application of titanium alloy pipes in the petroleum industry began in foreign countries. Chinese companies have also made certain progress in the development of titanium alloy tubing and casing. The current products have been initially tested in wells. It is believed that in the near future, titanium alloy pipes will have more applications in the petroleum equipment industry, and new breakthroughs will be made in the world industry as soon as possible.
1), lower density
Can significantly reduce the string load, especially ultra-deep oil well pipe.
2), higher strength
Including tensile strength, creep strength, fatigue strength, etc. The specific strength of different materials at different temperatures.
3), excellent corrosion resistance
Excellent seawater corrosion resistance
4) Wide operating temperature range
The operating temperature of conventional titanium alloy ranges from minus 269 ℃ to minus 600 ℃.
5), large elastic deformation capacity
Titanium alloy has high yield strength and low elastic modulus (E), so it is very suitable for springs and other parts, and more importantly, it is suitable for large-reach horizontal wells.
6), lower expansion coefficient
This feature makes petroleum equipment more adaptable to temperature changes and reduces the internal stress of structural parts.
7), non-magnetic
Meet the requirements of the normal use of some detection, communication and control methods in various equipment.
8), better processing performance
Titanium alloy pipes usually have good process properties such as casting, forging, welding, 3D printing, etc., which are often important factors in the selection process of various engineering materials.
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