Core Insights - The successful commissioning of the Dukuhe-Qilibei gas field marks the establishment of China's first independently developed high-sulfur gas field, with a daily processing capacity of 4 million cubic meters of raw gas [1][3]. Group 1: Technical Achievements - The Dukuhe-Qilibei gas field has a hydrogen sulfide content of 17.06%, making it the highest among currently operational gas fields in China [3]. - The project includes the construction of 8 new wells and a gas purification plant with a capacity of 4 million cubic meters per day, overcoming significant engineering challenges such as a maximum vertical drop of 700 meters and steep slopes nearing 90 degrees [3][4]. - The use of corrosion-resistant bimetallic composite materials addresses the global challenge of pipeline corrosion in high-sulfur gas extraction [4]. Group 2: Innovation and Safety Measures - Advanced welding techniques, including high-frequency pulse automatic welding, have improved welding efficiency by approximately 35% compared to traditional methods [4]. - A comprehensive detection scheme utilizing laser scanning, digital imaging, and various leak testing methods ensures the safety and leak-free operation of the pipeline system [4][6]. Group 3: Environmental and Economic Impact - The gas field employs a proprietary hydrogen-sulfur recovery and tail gas treatment process that meets stringent emission standards, contributing to clean production [6]. - The annual production of natural gas is expected to exceed 1.3 billion cubic meters, with 320,000 tons of sulfur produced, benefiting the Yangtze River Economic Belt [8]. - The development of the Dukuhe-Qilibei gas field is significant for advancing the domestic natural gas industry, meeting energy demands, achieving low-carbon goals, and supporting local economic development [8].