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From starting from scratch to breaking through technological bottlenecks,
From being unable to produce to achieving full-process integrated production,
From a single product to full series coverage,
And now owning a “large family” of 8 independently patented grades,
Baosteel’s 13Cr oil casing,
With excellent performance and stable delivery capabilities,
Ensures the supply of high-end pipes needed for China’s oil and gas extraction,
Contributing greatly to national energy security.
As of October 31, 2022,
Baosteel’s 13Cr oil casing annual production ranked among the top three in the world.
The comprehensive yield rate of the 13Cr oil casing in the 140 seamless unit
and the process yield rate of the 13Cr oil casing in the Lubao Steel PQF unit
both set historical records.
The 13Cr oil casing is mainly used in harsh corrosive environments with high carbon dioxide content and is a high-value-added product. In recent years, with the continuous development of oil and gas fields in high CO₂ corrosive environments, as well as the increasingly complex well conditions of “ultra-deep, ultra-high temperature, ultra-high pressure” oil and gas wells, the demand for 13Cr oil casing has also rapidly increased. Due to the complexity of the 13Cr oil casing process and the difficulty of production, only a few manufacturers in the world can produce it. Among them, there are only a handful of manufacturers capable of full-process production from steelmaking to thread processing.
After more than 20 years of independent research and development, Baosteel has acquired full-process integrated technology capabilities for 13Cr, from steelmaking to thread processing, and has established a comprehensive 13Cr full-process manufacturing system. It holds the only authoritative certification for 13Cr API SEPC 5CRA products in China and has become the sole domestic supplier of Super 13Cr oil casing for the Tarim Oilfield. By breaking foreign monopolies, Baosteel has overcome the bottleneck of the core technology for special threads used in offshore oil and gas fields, achieving a breakthrough in the supply of Super 13Cr products for CNOOC, and becoming its sole domestic supplier. This has strongly supported the smooth development of deep-water, high-temperature, and high-pressure oil and gas wells in China.
**Paving the Way for the Future**
Baosteel’s 13Cr oil casing is committed to “green manufacturing” and has been successfully applied to China’s first million-ton CCUS project (Qilu Petrochemical – Shengli Oilfield CCUS project). It will also play a key role in China’s first ten-million-ton CCUS project in collaboration with Sinopec, Shell, and BASF, providing significant support for promoting low-carbon technological progress and achieving the goal of carbon neutrality in China.
The road ahead may be full of challenges, but Baosteel is prepared to advance. Guided by the spirit of the 20th National Congress of the Communist Party of China, the Steel Pipe and Bar Business Unit will adhere to innovation while maintaining integrity, continuously breaking through the core technologies of steel pipe manufacturing, and with the nation’s interests in mind, build national heavyweights. With determination and courage, it will forge ahead and contribute to ensuring national energy security.