事实上，稳固存量基础的"杀手锏"，是抓实全过程热管理。今年，油田在持续优化注汽运行节奏的基础 上，对注汽质量的评价从提高"井口干度"向提高"井底干度"转变。 本报9月4日讯(大众新闻记者顾松通讯员孙万芹)今年以来，胜利油田通过一系列技术创新和管理优化， 稠油产量稳步提升，开发效益持续改善。数据显示，今年前7个月稠油产量达到264万吨，比去年同期增 加1.3万吨。 "最显著的效果是失控储量得到恢复，存量基础得到稳固。"油气开发管理中心副经理孙以德说，区块侧 钻治理，是恢复稠油失控储量的关键一招。 油田稠油开发近40年，单家寺、乐安等投入开发较早的稠油单元停产井比例较高，部分单元停产率超过 50%。今年，油田按照"地面有位置，地下找潜力"思路，充分利用老井侧钻盘活恢复失控储量，全年部 署稠油侧钻井201口，恢复产能22.5万吨。 "提高井底干度能够显著提高洗油效率和波及系数，是稠油高效开发的决定性因素。"注汽技术服务中心 技术研究中心副主任张方洪说。油田利用井筒保干措施配套，加大隔热管更新力度，采取氮气连续隔热 技术试验等措施，使井底干度提升至57.1%。 在低效和未动用稠油阵地，油田针对不同油藏类型，形成降黏及 ...

Core Insights - China's offshore heavy oil thermal recovery has achieved a significant milestone, surpassing a cumulative production of 5 million tons, marking a key step in the global offshore heavy oil development sector [3][12][14] - The Luda 5-2 North Oilfield Phase II project has emerged as a leader in this field, showcasing strong development momentum since its production start in February, with over 2 million tons of heavy oil reserves activated and daily production exceeding 500 tons [3][6] Technological Innovations - The development of heavy oil is challenged by its high viscosity and density, making extraction difficult, especially in offshore environments where costs are high and space is limited [6][9] - China National Offshore Oil Corporation (CNOOC) has introduced an innovative "fewer wells, higher yield" thermal recovery model, which enhances single well output through high-temperature steam injection and the use of various gases and chemicals [8][9] Equipment Advancements - CNOOC has successfully developed high-end oil production trees and supporting systems suitable for offshore heavy oil thermal recovery, along with modular equipment specifically designed for this purpose, filling a gap in the domestic market [9][10] Resource Potential - China is one of the world's four major heavy oil producers, with proven heavy oil resources amounting to 3.5 billion tons, indicating substantial development potential [10][12] - Currently, less than 3% of the annual production from Bohai Oilfield, which exceeds 30 million tons, comes from unconventional heavy oil, highlighting the opportunity to convert dormant heavy oil reserves into actual production [10][12] Future Outlook - The offshore heavy oil thermal recovery production is expected to exceed 1 million tons for the first time in 2024, with projections for 2025 indicating a potential annual output of 2 million tons, reflecting the technology's vast potential and promising future [14][16] - Continuous advancements in technology and equipment are anticipated to accelerate the pace of offshore heavy oil thermal recovery capacity construction, contributing significantly to national energy security [16]

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 achieve large-scale thermal recovery of offshore heavy oil [1][4] Industry Overview - Heavy oil, characterized by high viscosity, density, and poor flowability, poses significant extraction challenges, especially in offshore environments where operational space is limited and costs are high [1] - Approximately 70% of the world's remaining oil resources consist of heavy oil, making it a primary focus for oil-producing countries aiming to increase production [1] Technological Advancements - CNOOC has developed a "few wells, high yield" thermal recovery theory, utilizing a large well spacing approach combined with high-intensity injection and multi-phase thermal fluid collaboration to enhance single well output [4] - The company has successfully created world-leading equipment capable of withstanding temperatures of 350°C for thermal recovery, along with a mobile thermal injection platform, "Thermal Recovery No. 1," filling a gap in offshore heavy oil thermal recovery equipment [4] Production Capacity and Future Plans - The development of the thermal recovery technology system and core equipment has accelerated the construction of offshore heavy oil production capacity, with expectations to exceed 1 million tons in production by 2024 [4] - CNOOC plans to intensify technological research and expedite the development of heavy oil fields to continuously enhance the ability to utilize heavy oil reserves [4]

Group 1 - The stock price of China Petroleum on August 4 was 8.47 yuan, down 0.47% from the previous trading day, with a trading volume of 971 million yuan and a turnover rate of 0.07% [1] - China Petroleum is a major oil and gas producer and supplier in China, involved in exploration, refining, transportation, trading, and engineering services, and is listed in Beijing, Shanghai, and Hong Kong [1] - The cumulative production of the Fengcheng oilfield in Xinjiang has surpassed 15 million tons, making it the largest shallow-layer heavy oil field in China, with enhanced production measures yielding an increase of 31,000 tons [1] Group 2 - On August 4, the net inflow of main funds into China Petroleum was 38.86 million yuan, with a cumulative net inflow of 33.29 million yuan over the past five days [1]