Core Insights - The W23 gas storage facility in China's central and eastern regions has successfully completed its expansion, increasing its capacity by 1.934 billion cubic meters and enhancing its daily gas supply capability to 36.5 million cubic meters, resulting in a 22% improvement in overall gas storage and peak-shaving capacity [1] Group 1: Facility Expansion and Capacity - The W23 gas storage facility is the largest in central and eastern China, with a total design capacity exceeding 10 billion cubic meters and a working gas volume of 4.002 billion cubic meters, playing a crucial role in natural gas peak-shaving and supply assurance in the region [1] - The expansion project enhances the national gas network's storage, peak-shaving, and emergency support capabilities, with the facility's daily gas supply during winter peak periods capable of meeting the needs of 65 million households [1] Group 2: Technological Advancements - Recent years have seen the W23 gas storage facility achieve the localization of key equipment such as compressor units and triethylene glycol dehydration devices, significantly improving operational stability and autonomy [2] - The facility has implemented intelligent operations through technologies like laser methane remote sensing and remote monitoring of compressors, enabling remote process adjustments, one-click compressor start/stop, and remote shutdown of safety valves, thereby enhancing operational efficiency and safety levels [2]

Core Insights - The YU37 gas storage facility in Yulin, Shaanxi, has commenced gas injection, marking the official operation of the largest natural gas "peak shaving + strategic" storage facility in Central and Western China [1] Group 1: Project Overview - The YU37 gas storage facility is a key national natural gas infrastructure project, playing a vital role in national gas strategic reserves and winter peak shaving [1] - The facility includes 37 injection and production wells, one gathering station, a bidirectional gas pipeline, and a production support point, with a total designed capacity of 9.72 billion cubic meters and a working gas volume of 2.7 billion cubic meters [1] - During off-peak seasons like summer and autumn, the facility can store natural gas from the Changqing gas area, with a maximum daily injection capacity of 17 million cubic meters, and can achieve a daily production of 30 million cubic meters during winter peak periods [1] Group 2: Technical Achievements - The YU37 gas storage facility has set multiple records in domestic gas storage well lengths and screen pipe depths [1] - The pipeline construction utilized advanced technologies such as "fully automated welding + fully automated ultrasonic testing + mechanical jointing + digital delivery," significantly enhancing welding quality and construction efficiency [1] - Key equipment at the new gathering station, including electric centrifugal compressors and triethylene glycol dehydration units, has been fully domestically produced, with the dehydration unit having the highest daily processing capacity of 10 million cubic meters among similar domestic equipment [1]