中国海油近日发布消息称，我国海上稠油热采技术体系和核心装备规模化应用取得关键进展，海上稠油 热采累计产量超500万吨，标志着我国成为全球首个实现海上稠油规模化热采开发的国家。 稠油是一种黏度高、密度大、流动性差且容易凝固的原油，开采难度大。与陆地油田相比，海上平台作 业空间小、成本高，稠油热采规模化开发面临技术装备和经济效益双重挑战，是业界公认的世界难题。 中国海油研究总院杨仁锋表示，目前在全球剩余石油资源中，稠油占比约70%，是石油生产国实现增产 的主攻方向之一。对于高黏稠油，行业内主要采用热采方式进行开发，核心原理是向地层注入高温高压 蒸汽，通过加热使稠油黏度降低，成为流动性好、易开采的"稀油"。 我国是全球四大稠油生产国之一，稠油资源丰富，海上需注热开发的高黏稠油探明储量超6亿吨，占我 国稠油已探明储量的20%，开发潜力巨大。持续推动稠油储量向产量转化，对于加大国内油气勘探开发 力度具有重要意义。 目前，我国海上稠油热采主要集中在渤海海域，现已建成南堡35-2、旅大21-2、锦州23-2等多个主力热 采油田。今年以来，稠油热采产量已超130万吨，全年产量有望跃升至200万吨。 为高效且经济利用稠油储量， ...

（来源：央视网） ...

Core Insights - China National Offshore Oil Corporation (CNOOC) has achieved significant progress in the large-scale application of offshore heavy oil thermal recovery technology, with cumulative production exceeding 5 million tons, making China the first country globally to realize large-scale thermal recovery development of offshore heavy oil [1][3] Industry Overview - Heavy oil is characterized by high viscosity, high density, poor fluidity, and a tendency to solidify, making extraction challenging. Compared to onshore oil fields, offshore operations face smaller working spaces and higher costs, presenting dual challenges in technical equipment and economic efficiency [3] - Approximately 70% of the world's remaining oil resources consist of heavy oil, which is a primary focus for oil-producing countries aiming to increase production. The industry primarily employs thermal recovery methods for high-viscosity oil, which involves injecting high-temperature, high-pressure steam into the reservoir to reduce viscosity and convert heavy oil into more easily extractable "light oil" [3] Development Focus - China's offshore heavy oil thermal recovery is mainly concentrated in the Bohai Sea, with several key thermal recovery oil fields established, including Nanpu 35-2, Ludao 21-2, and Jinzhou 23-2 [3]

Core Insights - China National Offshore Oil Corporation (CNOOC) announced significant progress in the large-scale application of offshore heavy oil thermal recovery technology, achieving a cumulative production of over 5 million tons, making China the first country globally to realize large-scale thermal recovery of offshore heavy oil [2] Group 1: Technology and Equipment - Heavy oil, characterized by high viscosity, density, poor fluidity, and tendency to solidify, poses significant extraction challenges, especially in offshore environments where operational space is limited and costs are high [2] - CNOOC has developed world-leading equipment capable of withstanding temperatures of 350°C for thermal recovery, along with efficient small-scale heating injection equipment, downhole safety control systems, and long-lasting sand control devices [2] - The company has designed and constructed the world's first mobile heating injection platform, "Thermal Recovery No. 1," filling a gap in China's offshore heavy oil thermal recovery equipment sector [2] Group 2: Production Areas - The offshore heavy oil thermal recovery efforts are primarily concentrated in the Bohai Sea, with key thermal recovery oil fields established, including Nanpu 35-2, Luda 21-2, and Jinzhou 23-2 [2]

Core Viewpoint - China National Offshore Oil Corporation (CNOOC) has successfully put into production the Panyu 11-12 platform in the eastern South China Sea on May 3, marking China's first application of unmanned platform remote development for offshore heavy oil fields [1] Group 1 - The platform has achieved breakthroughs in typhoon production mode, remote resumption of production, and complex crude oil processing [1] - The successful operation of the platform enhances the standardization and intelligence level of China's marine oil and gas equipment design and construction [1]