【Major Chemical Equipment in China】531—Steel pipes for Project West Gas East Transmission Line 4, produced in Ziyang, Shashi, Baoji, and Nanjing from 2022
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This post was last edited by Desert Fish on 2022-10-1 at 16:30. HaiChuan celebrates the 73rd anniversary of the motherland and sees great development in chemical engineering equipment; replies are rewarded – discussions are welcome. ---------------------------------------------------------- 1. West-East Gas Pipeline Project Phase IV: This project is a key item in the 14th Five-Year Plan, and it also forms an important part of the \"four major energy corridors\" as well as the \"five horizontal and five vertical\" natural gas pipeline network structure. The project pipeline runs from the Turpan connection station to the Zhongwei connection station, passing through Xinjiang, Gansu, and Ningxia, with a total length of 1,745 kilometers. It is designed to transport 15 billion cubic meters of gas per year, and it represents another \"green\" energy artery in China, following the West-East Gas Transmission Lines 1, 2, and 3. The total volume of steel pipes used in the West-to-East Gas Transmission Line 4 project is 2.4 million tons, with these pipes supplied in batches by major steel pipe manufacturers from Hubei, Shaanxi, Jiangsu, Sichuan and other regions. First, steel plates supplied by Ansteel and Pangang. Recently, the hot-rolled pipeline steel supplied by Ansteel Co., Ltd. and the X80M steel coils produced by Pangang were shipped out for use in the construction of the West-East Gas Pipeline Project Phase IV (Turpan–Zhongwei). To date, Ansteel Group has supplied over 140,000 tons of pipeline steel for this project, underscoring its leading position in the industry regarding pipeline steel and demonstrating the responsibility of Ansteel Group as a central state-owned enterprise in ensuring **energy security.
On August 2, China Petroleum Baoji Oil Pipe Co., Ltd. delivered the first batch of 375 tons of spiral-welded pipes with a diameter of 1,219 millimeters and a wall thickness of 18.4 millimeters, produced for the West-East Gas Pipeline Project Phase IV (referred to as “West Phase IV”). After a 5-day journey across difficult terrain, these pipes were gradually transported to the construction site in Turpan, Xinjiang. It is reported that these are the first batch of steel pipes received at the construction site, marking another entry by Chinese oil equipment manufacturers into the main field of major pipeline construction in our country.
The pipeline company that completed the first batch of shipping tasks coordinated in advance all aspects such as supervision, sample preparation, inspection, and transportation, and managed to carry out tasks like route change, weld evaluation, initial inspection, and shipment in just 3 days. In line with the pipeline requirements at the construction site, and after thorough research and comparison, the company adopted a shipping method that involved both trucks and trains, thereby completing the shipment of the first batch of steel pipes quickly and efficiently. As the \"birthplace of welded pipes in China\" and the only specialized welded pipe manufacturer in the country’s petroleum industry, Baoji Steel Pipe leverages the R&D capabilities and talent pool of its Petroleum and Natural Gas Pipeline Engineering Technology Research Center, as well as the welded pipe manufacturing expertise accumulated over more than 60 years. It has now become a key supplier of steel pipes for major pipeline projects such as the West-East Gas Pipeline, the Central Asia pipelines, the China-Russia East Route pipeline, and the Han River to Wei River water transfer project, as well as for various projects related to people’s livelihoods.
On August 12, the first batch of steel pipes for the \"West-East Gas Pipeline Project Line 4\" produced by Ziyang Petroleum Steel Pipe Co., Ltd. was loaded and shipped from Ziyang, marking another time when steel pipes manufactured in Ziyang are used in major pipeline construction projects in China. At 9:30 a.m., in the finished anti-corrosion pipe stacking area of Ziyang Petroleum Steel Pipe Co., Ltd., workers were using double-girder bridge cranes to lift spiral-welded steel pipes onto trucks. These steel pipes are of X80 grade; they are approximately 12.5 meters long, 1.2 meters in diameter, with a wall thickness of 18.4 millimeters and a weight of around 6.7 tons. They feature prominent QR code markings on their surface, and the relevant construction and operation units can scan these codes to track the entire lifecycle of the pipes, thereby obtaining information such as the standards applied, specifications, and manufacturer details.
Staff members told reporters that, as specialized pipes for the \"West-to-East Gas Transmission Line 4\" project, these finished steel pipes have a pressure resistance capacity of 12 megapascals, which is sufficient to meet the requirements for long-distance transportation of natural gas. To ensure the timely delivery of these steel pipes in both quality and quantity, upon receiving this important order for pipeline production, the company quickly assembled 218 employees who worked through high temperatures and scorching heat, adopting a shift system to strictly control every stage of production and testing, so that each of the 4,355 tons of steel pipes delivered was of top quality.
On the morning of July 29, at the Nanjing Dajiaqu Wharf, a special train loaded with the first batch of 100 steel pipes for Project West-East Gas Pipeline Line 4, spanning Turpan to Zhongwei, set off successfully for delivery. It marks the official commencement of the supply pipeline construction for Line 4 West. As the first supplier to ensure supply for this project, Jiangsu Steel Pipe Company will also be among the first suppliers to deliver steel pipes to the construction site!