Core Viewpoint - China National Offshore Oil Corporation (CNOOC) announced that the "Deep Sea No. 1" gas field has completed its 100th oil export since production began, with total oil and gas output expected to exceed 4.5 million tons of oil equivalent by 2025, comparable to that of a medium-sized onshore oil field, showcasing advanced production and operation technology in China's deep-sea gas fields [1][4]. Group 1 - The "Deep Sea No. 1" gas field, located in the Hainan Lingshui sea area, is China's deepest and most challenging offshore gas field, with a maximum operational water depth exceeding 1,500 meters and a geological temperature of up to 138 degrees Celsius [1][4]. - The gas field has proven geological reserves of over 150 billion cubic meters of natural gas and is being developed in two phases [1][4]. - Currently, "Deep Sea No. 1" produces 15 million cubic meters of natural gas and over 1,600 tons of condensate oil daily, with some condensate stored in oil storage tanks on the platform and exported via shuttle tankers [1][4]. Group 2 - Since its commissioning in 2021, CNOOC's operational team has continuously upgraded the production facilities of "Deep Sea No. 1" to maximize its production potential [1][4]. - By 2025, the annual natural gas output of the gas field is expected to reach 5 billion cubic meters, surpassing the project's designed peak capacity [1][4]. - The operational time for oil exports has been reduced from 18 hours to under 8 hours, demonstrating significant improvements in operational efficiency [3][6]. - The "North Sea New Hope" shuttle tanker, specifically designed for "Deep Sea No. 1," has completed over 100 condensate oil export tasks, marking a significant advancement in deep-sea gas field operational management [3][6]. - The overall oil and gas production from the offshore gas fields around Hainan Island is projected to exceed 10 million tons of oil equivalent by 2025, doubling the output compared to the end of the 13th Five-Year Plan, with deep-sea oil and gas accounting for over 90% of the new production in the region [3][6].

Core Viewpoint - China National Offshore Oil Corporation (CNOOC) announced the completion of the 100th oil export from the "Deep Sea No. 1" gas field, which is China's largest offshore gas field, with a projected total oil and gas output exceeding 4.5 million tons of oil equivalent by 2025 [2] Group 1: Production and Capacity - "Deep Sea No. 1" is the most challenging offshore gas field in China, with the deepest operational water depth exceeding 1,500 meters and the highest formation temperature reaching 138 degrees Celsius [2] - The gas field has proven geological reserves of over 150 billion cubic meters of natural gas and is developed in two phases [2] - Currently, "Deep Sea No. 1" produces 15 million cubic meters of natural gas and over 1,600 tons of condensate oil daily [2] Group 2: Technological Innovations - The core facilities, "Deep Sea No. 1" energy station and "Four Stars in a Row" platform group, possess the capability for deep-sea oil and gas processing, enabling on-site separation and export of natural gas and crude oil [2] - A unique technology allows for the storage of condensate oil in the platform's four pillars, which is exported via shuttle tankers once a certain volume is reached [2] Group 3: Future Plans - CNOOC plans to widely promote the production and operation technology system developed from "Deep Sea No. 1" to provide more robust energy support for national economic and social development [2]

Core Insights - The "Deep Sea No. 1" gas field is China's most challenging deep-water gas field, characterized by the deepest operational water depth, highest formation temperature and pressure, and significant exploration and development difficulties [1] Industry Development - China's deep-water oil and gas engineering capabilities have significantly improved in recent years, achieving a transition from shallow to ultra-deep water operations [1] - The equipment technology has reached a world-class advanced level, indicating a strong competitive position in the global market [1] Project Specifications - The second phase of the "Deep Sea No. 1" project features a maximum operational water depth of nearly 1000 meters, with the highest formation temperature reaching 138 degrees Celsius and the highest pressure exceeding 69 MPa [1] - The total designed well depth exceeds 60,000 meters, and the main production facilities span a geographical distance of over 170 kilometers, making it the deepest and most extensive deep-water gas field developed independently by China [1] - The project faces extreme challenges due to the combination of "deep water, deep layers, high temperature, and high pressure" [1]