1), lower density
Can significantly reduce the pipe string load, especially ultra-deep oil well pipe.
2), higher strength
Including: tensile strength, creep strength, fatigue strength, etc. specific strength of different materials at different temperatures.
3), excellent corrosion resistance
Excellent resistance to seawater corrosion
Comparison table of seawater corrosion resistance (mm/a) data
4), Wide operating temperature range
The operating temperature of conventional titanium alloy is 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 displacement 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
Adapt to the normal use requirements of some detection, communication and control methods in various equipment.
8), better processing technology performance
Titanium gold usually has good casting, forging, welding, 3D printing and other process performance, which is often an important factor in the success of various engineering materials selection process.
In the 1980s, foreign countries have begun to conduct research and application of titanium alloy pipes in the petroleum industry. Chinese companies have also made certain progress in the development of titanium alloy oil casings. The products have been initially tested in wells. I believe that in the near future, titanium alloys will have more applications in the petroleum equipment industry and will achieve new breakthroughs in the world industry as soon as possible.