Core Insights - China's first deepwater oil field, the Liuhua Oilfield, has fully commenced its secondary development project, achieving a daily crude oil production of 3,900 tons, setting a new production capacity record [1][4] - The project consists of 32 production wells and is expected to exceed one million tons in output next year [4] Group 1: Project Overview - The Liuhua Oilfield secondary development project is composed of the Liuhua 11-1 and 4-1 oil fields, located approximately 240 kilometers southeast of Shenzhen, with an average water depth of 305 meters [4] - The project includes a deepwater jacket platform, a cylindrical offshore oil and gas processing facility, and an underwater production system [4] Group 2: Production Achievements - Since the first production wells were put into operation in September of last year, the cumulative crude oil production has surpassed 900,000 tons [4] - The secondary development project marks a significant advancement in the development of deepwater complex reservoirs in China [1][4] Group 3: Technological Significance - The "Haiji No. 2" platform, which is the first deepwater jacket platform in Asia, incorporates multiple world-leading technologies and symbolizes the self-reliance and intelligence of China's marine engineering equipment [4] - The platform is equipped with high levels of intelligence, enabling smart oil and gas extraction, remote well control, and production during typhoons [4]

Core Viewpoint - The successful launch of the "Hai Ji No. 2" deepwater jacket platform marks a significant advancement in China's deepwater oilfield development, with the full production of the second phase of the Liuhua oilfield project [1] Group 1: Project Overview - The Liuhua oilfield second phase development project is located in the Pearl River Mouth Basin and consists of the Liuhua 11-1 and 4-1 oilfields, with an average water depth of approximately 305 meters [1] - The project is designed to produce from 32 production wells, and since the first wells were put into operation in September of the previous year, daily crude oil production has reached 3,900 tons, setting a new production capacity record [1] Group 2: Historical Context - The Liuhua oilfield is China's first deepwater oilfield and has the largest proven geological reserves of reef limestone oil in the country, having been in production since 1996 [1] - To date, the Liuhua oilfield has produced over 20 million tons of crude oil, with an estimated 140 million tons of crude oil reserves still hidden beneath the seabed [1]

Core Insights - The successful deployment of the last production well on the "Hai Ji No. 2," Asia's first deepwater jacket platform, marks the full production launch of the Liuhua oilfield secondary development project, representing a significant advancement in China's deepwater complex reservoir development [1][2]. Group 1: Project Overview - The Liuhua oilfield secondary development project is located in the Pearl River Mouth Basin and consists of the Liuhua 11-1 and 4-1 oilfields, with an average water depth of approximately 305 meters [1][2]. - The project is designed to produce from 32 production wells, and since the first batch of wells was put into operation in September of the previous year, daily crude oil production has reached 3,900 tons, setting a new production capacity record [1][2]. Group 2: Technical Achievements - The Liuhua oilfield is China's first deepwater oilfield and has the largest proven geological reserves of reef limestone oil in the country, having produced over 20 million tons of crude oil since its inception in 1996, with an estimated 140 million tons of crude oil reserves still hidden beneath the seabed [1][2]. - The development of deepwater reef limestone reservoirs is recognized globally as a highly challenging task. Key to the secondary development of the Liuhua oilfield is the control of water and stabilization of oil, which has led to a significant reduction in the comprehensive water cut of the development wells compared to design expectations, thereby greatly enhancing the recoverable reserves and recovery rates, extending the field's lifespan by 30 years [3]. Group 3: Infrastructure - Major production facilities for the Liuhua oilfield secondary development project include the "Hai Ji No. 2" platform and Asia's first cylindrical FPSO (Floating Production Storage and Offloading) unit, "Hai Kui No. 1." Crude oil extracted is initially processed on the "Hai Ji No. 2" platform before being transported 2.5 kilometers to the "Hai Kui No. 1" for further processing and storage [2][3].

Core Insights - The successful launch of the "Hai Ji No. 2" deepwater jacket platform marks the full production of China's first deepwater oil field, the Liuhua oil field, which is significant for national energy security [1][3] Group 1: Project Overview - The Liuhua oil field is located in the Pearl River Mouth Basin and consists of the Liuhua 11-1 and 4-1 oil fields, with an average water depth of approximately 305 meters [1] - The project is designed to produce from 32 wells, with daily crude oil production reaching 3,900 tons, setting a new production capacity record since the first wells were put into operation in September of the previous year [1][3] Group 2: Technical Challenges and Innovations - Deepwater reef limestone reservoirs are recognized as one of the most challenging types of oil reservoirs to develop due to their complex internal structures [3] - Key strategies for the second development phase include precise control of oil column height, systematic improvement of water control effectiveness, and innovative measures such as "screen-blind combination" and "intelligent compartmentalization" [3] Group 3: Infrastructure and Production Capacity - The main production facilities include the "Hai Ji No. 2" platform and the "Hai Kui No. 1" FPSO, which processes and stores crude oil [4] - The "Hai Kui No. 1" has a total height of nearly 90 meters and a maximum oil storage capacity of 60,000 tons, capable of processing 5,600 tons of crude oil daily [4] Group 4: Economic and Operational Impact - The "Hai Ji No. 2" platform integrates over 300 systems for intelligent oil and gas extraction, significantly speeding up operations and increasing crude oil production by over 190,000 tons [5] - The operational success of the Liuhua oil field demonstrates the reliability of the water control technology and the economic effectiveness of the deepwater development model, contributing to China's goal of large-scale and efficient development of similar deepwater oil and gas resources [5]

Core Viewpoint - The successful full production of China's first deepwater oil field, the Liuhua Oilfield, marks a significant advancement in the development of deepwater complex oil reservoirs in the country [1] Group 1: Production Achievements - Daily crude oil production has reached 3,900 tons, setting a new capacity record for the oil field [1] - The oil field has achieved a production effect that exceeds expectations, with daily output reaching a 22-year high [1] Group 2: Infrastructure and Operations - Crude oil is initially processed on the "Haiji No. 2" platform before being transported to the "Haikui No. 1" offshore oil and gas processing plant, located 2.5 kilometers away, for further processing and storage [1] - A total of 25 shipments of crude oil have been delivered to onshore refineries to date [1]