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What are the manifestations of material innovation in new oil drill pipes
release time：2026-01-28
source： network
The innovation of new petroleum drill pipe materials is reflected in breaking through the limits of traditional performance:
1. High strength and wear resistance:
Taking the new diamond drill pipe as an example, it adopts a nano composite wear-resistant alloy matrix, and improves the strength and toughness of the matrix through grain refinement technology. The surface is coated with tungsten carbide gradient coating (hardness of HV1200 or above), and the wear resistance is increased by 42% compared to traditional drill pipes. It can effectively cope with abrasive formations such as sandstone and gravel, significantly extending the service life of the drill pipe. For example, in the shale gas field in Sichuan, the service life of the new diamond drill pipe single well has been extended to 1.5 times that of traditional products.
2. Corrosion and high temperature resistance:
For the development of high sulfur oil and gas fields, the corrosion resistance of the new diamond drill pipe has reached a level of withstanding H ₂ S/CO ₂ partial pressure ≥ 0.8MPa, suitable for extreme corrosive environments; The all metal screw drilling tool is designed with all metal materials and has a high temperature resistance of over 180 ℃, which can meet the needs of deep oil and gas exploration. In the 7000m+deep wells in the Tarim Basin, the new diamond drill pipe can withstand high temperature (150 ℃) and high pressure (100MPa) environment, ensuring the continuity of ultra deep well drilling.
3. Lightweight and High Resilience:
Titanium alloy drill rods have outstanding performance in short radius horizontal wells due to their high specific strength, light weight (density only 60% of steel), and low elastic modulus (11.7 × 10 ⁴ MPa vs 20.7 × 10 ⁴ MPa of steel). Its fatigue life is 10 times higher than that of steel, and it can withstand drilling in sections with a curvature radius of less than 15m without early failure due to high cyclic stress.
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