On June 6, according to a report by CCTV News (CCTV13), China's independently developed ultra-high sulfur gas field—the Tieshanpo Gas Field—has achieved full production capacity, with a daily natural gas output of 4 million cubic meters. The gas is now fed into the national pipeline network for transmission to the Yangtze River Economic Belt region, marking a new breakthrough in China's key core technologies for developing ultra-high sulfur gas fields. With Tieshanpo reaching full production, the natural gas supplied to the national pipeline network can benefit 200 million households and meet the gas demand of 10 million people.
Located in Dazhou, Sichuan Province, the Tieshanpo Gas Field has a maximum hydrogen sulfide (H₂S) content of 16.59%, classifying it as an ultra-high sulfur gas reservoir. It is currently the only integrated gas field with such high H₂S content in operation in China, now producing 4 million cubic meters of natural gas daily. The development of acidic gas reservoirs presents significant technical challenges and stringent safety requirements due to the highly corrosive and toxic nature of high-sulfur natural gas. Historically, the safe, clean, and efficient development of ultra-high sulfur gas fields has been a worldwide challenge. Tieshanpo has actively explored and implemented practices in development geology theory, new material applications, and digital gas field technologies, including the large-scale use of nickel-alloy corrosion-resistant bimetallic composite materials.
For this project, the Aerospace Materials Company supplied nickel-alloy corrosion-resistant bimetallic composite pipes to the Tieshanpo Ultra-High Sulfur Gas Field. This marks the first large-scale domestic application of nickel-alloy corrosion-resistant bimetallic composite piping, representing the third generation of bimetallic composite pipe technology. This product retains the intrinsic advantages of its two constituent materials. Building upon traditional mechanically lined pipes, it utilizes aerospace-derived insulation layer bonding and curing technology to develop a polymer-enhanced adhesive material with high fatigue resistance, long service life, and high strength, bonding corrosion-resistant alloy to carbon steel. This polymer is applied to the liner of the bimetallic composite pipe and has been successfully deployed in high-sulfur gas field extraction, achieving a technological upgrade over traditional mechanical bimetallic composite pipes.
The Aerospace Materials Company's high-reliability quality assurance has supported the safe, clean, and efficient development of the Tieshanpo Ultra-High Sulfur Gas Field. This is of great significance for China in mastering the core technologies for ultra-high sulfur gas field extraction, effectively ensuring national energy security, and promoting the high-quality development of the natural gas industry, helping the nation's energy sector scale new heights!
(Partial text and images sourced from CCTV News)
Video Source Link: http://tv.cctv.com/2023/06/06/VIDElKp3zTXhgvQaOWKcrs3x230606.shtml?spm=C53156045404.PKXC0xLPAnP9.0.0
