Group 1 - The core point of the article is that China National Petroleum Corporation (CNPC) has applied for a patent for a device and method for dynamically measuring corrosion in light hydrocarbons, which aims to accurately predict the corrosion process and extent caused by sulfides in storage tank walls [1]. Group 2 - CNPC was established in 1999 and is primarily engaged in oil and natural gas extraction, with a registered capital of 18,302,097,000 RMB [2]. - The company has invested in 1,298 enterprises and participated in 443 bidding projects, holding 38 trademark records and 5,000 patent records, along with 168 administrative licenses [2].

Core Viewpoint - The article discusses the implementation of a new methodology for voluntary greenhouse gas emission reduction projects in the context of low gas recovery from onshore oil fields, aiming to enhance methane recovery, reduce carbon emissions, and promote the green transition of the oil extraction industry in China [4][5]. Summary by Sections Background - The methodology was jointly issued by the Ministry of Ecology and Environment and the National Energy Administration on November 21, 2025, to encourage broader industry participation in greenhouse gas emission reduction [4]. Principles of Methodology - **Scientific Principle**: The emission reduction mechanism must be scientifically sound and comply with industry technical standards [7]. - **Operability Principle**: The methodology should simplify monitoring parameters while ensuring data is verifiable and traceable [9]. - **Conservativeness Principle**: Emission reductions should be conservatively estimated to avoid overestimation [10]. - **Sustainable Development Principle**: Projects must align with sustainable development goals and not negatively impact the environment or socio-economic development [11]. Applicable Conditions - The methodology applies to low gas recovery projects from onshore oil fields, requiring specific conditions such as a processing capacity of at least 30,000 Nm³/d and compliance with national laws and industry policies [14][15]. Project Duration and Baseline Scenario - The project duration for emission reduction claims can last up to 10 years, with a baseline scenario established for comparison [17]. Additionality Demonstration - The projects face challenges such as complex gas composition, remote locations, and high investment costs, which necessitate additionality proof for the emission reduction claims [19][20]. Emission Reduction Calculation - Emission reductions are calculated based on the replacement of newly extracted natural gas with recovered gas, considering various emission sources [21][22]. Data Management Requirements - A robust data management system must be established, including monitoring, recording, and cross-verifying data, with a retention period of at least 10 years for all project-related data [25]. Verification and Public Oversight - Verification of emission reductions will be conducted by designated institutions, with monitoring data made publicly available through local ecological departments [27][30].

7月3日，国内首座天然气全链条多工况深冷处理厂——中国石油西南油气田盐亭天然气处理厂全面 投产。这是目前国内技术路线最长、工艺最复杂、功能最齐全、产品种类最多的天然气处理厂，标志着 我国在非常规天然气综合利用领域达到国际领先水平。 盐亭天然气处理厂的建成投产，填补了国内天然气全链条多工况深冷处理的技术空白，为我国非常 规天然气资源开发及综合利用树立了技术标杆，向构建自主可控的天然气深冷工艺体系迈出了关键一 步。（郑斌 郭霄雄 罗婉月） 近年来，西南油气田在致密气开发领域取得重大突破，通过勘探开发一体化模式实现快速上产。经 评估分析，天府气田中乙烷含量丰富，多种天然气伴生气含量远超国内常规气田，具备极高的工业提取 价值。为释放资源潜力，盐亭天然气处理厂于2023年12月破土动工，今年1月完成中交，转入调试阶 段。经过近半年的系统联调与工艺优化，实现全流程满负荷达产，各项运行参数均达到设计指标。 西南油气田联合研发了具有自主知识产权的天然气深冷多联产工艺包，并首次成功应用于盐亭天然 气处理厂。同时，采取无扰切换、顺控优化、四步干燥、分段预冷等7项创新生产措施，将天然气资源 综合回收率提升至95%。公司创新实施"数 ...

中新网绵阳7月3日电(郑斌 干卓凡 罗婉月)7月3日，国内首座天然气全链条多工况深冷处理厂——中国 石油西南油气田公司盐亭天然气处理厂全面投产。据悉，这是目前国内技术路线最长、工艺最复杂、功 能最齐全、产品种类最多的天然气处理厂，标志着我国在非常规天然气综合利用领域达到国际领先水 平。 一线员工正在厂区作业。梁伟杰 摄 据西南油气田总经理雍锐介绍，盐亭天然气处理厂有别于常规仅进行脱水、脱硫的天然气处理装置，利 用超低温深冷技术，通过逐级降温，使来自天府气区的致密气中不同组分在各自的冷凝点下液化分离， 实现商品天然气、乙烷、LPG、稳定轻烃、LNG等7种产品的规模产出。该厂日处理天然气可达600万立 方米，可供400多万户居民家庭每天用气；年处理天然气规模超20亿立方米，年产商品天然气13.6亿立 方米。"由于不同天然气组分露点温度不同，这一工艺在实际运用中面临精准温控难度大、能效平衡需 求高、设备可靠性要求严等多重挑战。" 为破解难题，西南油气田在技术上锚定多梯级温度变化中维持精确控制和工况稳定的关键，联合研发了 具有自主知识产权的天然气深冷多联产工艺包，并首次成功应用于盐亭天然气处理厂。针对不同单元结 构特 ...