PETROCHINA(SH:601857) Zhong Guo Xin Wen Wang·2025-09-25 04:11Core Points - The Ziyang Natural Gas Purification Plant, operated by China Petroleum Southwest Oil and Gas Field Company, has commenced gas intake, marking the official production of the largest single-unit sour natural gas purification plant in China, which will effectively address production bottlenecks in the Sichuan Basin [1][2] - By 2025, the Southwest Oil and Gas Field aims to achieve an annual production capacity of 50 billion cubic meters, with the Chuan Zhong uplift being the main battlefield for natural gas production [1] Summary by Sections Plant Capacity and Design - The Ziyang Natural Gas Purification Plant is designed to process 4 billion cubic meters of raw gas annually, with a single unit processing capacity of 7.2 million cubic meters per day [2] - The project utilized a modular design and construction model, reducing the construction period to 11 months, which is 5 months shorter than traditional purification plants, and lowering investment costs by 30% [2] Environmental and Efficiency Improvements - The plant incorporates ORC low-pressure steam power generation, with a total new energy capacity of 4,330 kilowatts, and is expected to save 37.384 million kilowatt-hours of electricity annually while reducing carbon dioxide emissions by 21,300 tons [2] - The unit energy consumption is approximately 21% lower compared to similar-sized purification plants, achieving dual breakthroughs in "clean energy production" and "low-carbon operation" [2] Technological Advancements - The plant features a deep integration of intelligence and autonomy, achieving the first digital forward delivery in China's natural gas purification sector, with 25 intelligent systems for comprehensive production management, enhancing efficiency by 37% [2] - It successfully applies the "CPO oxidation absorption process package + patented solvent," breaking foreign technology monopolies and saving 20 million yuan in import costs, thus achieving core technology independence [2] Production Capacity Increase - With the commissioning of the Ziyang Natural Gas Purification Plant, the daily gas production from the Chuan Zhong uplift is expected to exceed 57 million cubic meters, establishing a large-scale gas field with an annual production capacity of 20 billion cubic meters [2]