我国最大页岩油生产基地长庆油田累计产量突破2000万吨

Core Insights - China's largest shale oil production base, Changqing Oilfield, has surpassed a cumulative production of 20 million tons of shale oil, marking a new stage in the large-scale development of continental shale oil [1] - The oilfield has drilled 144 horizontal shale oil wells this year, producing over 3 million tons of shale oil, with an annual production target of 3.5 million tons, significantly contributing to domestic energy security [1] Group 1 - The shale oil in the Ordos Basin has thin and heterogeneous reservoirs buried at depths of over 2000 meters, with reservoir pressure significantly lower than conventional oil fields, making natural energy-driven development unfeasible [1] - Changqing Oilfield has conducted 128,000 laboratory experiments and over 80 field development tests since 2011, achieving major breakthroughs in exploration and development theories, technologies, and models [1] - The oilfield has established the world's first continental shale oil field capable of large-scale efficient development [1] Group 2 - To address the technical challenges of ultra-low reservoir pressure, Changqing Oilfield has adopted a core approach of "fracturing and precise energy supplementation," creating artificial channels in dense reservoirs [2] - The company has independently developed 12 key technologies, including soluble metal ball seats and multifunctional fracturing fluids, breaking the technical monopoly of international oil service companies [2] - The application of carbon dioxide enhanced oil recovery technology has increased the oil extraction rate, boosting single well daily production from 1.5 tons to 18 tons, achieving internationally advanced technical levels [2] Group 3 - Changqing Oilfield has innovated a development model of "horizontal well cluster drilling and skid-mounted combined station," setting world records for horizontal sections exceeding 5000 meters and 31 horizontal wells deployed on a single platform [2] - The first domestic three-dimensional oil joint station has been put into operation this year, occupying only 70% of the area of traditional joint stations [2] - The introduction of the first shale oil IoT cloud platform and drone inspection systems has reduced labor by 80% for million-ton-level production units, achieving large-scale efficient development of continental shale oil [2]