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According to China Petroleum Network (reporter: Luo Qianbin; correspondents: Wang Dan, He Donglei), on November 10, reporters learned from the New Energy Division of Liaohe Oilfield that the hydrogen production system developed through collaboration between Liaohe Oilfield and Shenzhen New Energy Research Institute was successfully tested for the first time at the HuanSan joint station in Jinzhou Oil Production Plant of Liaohe Oilfield. This system is capable of producing 2 cubic meters of hydrogen per hour, and the hydrogen produced is transported via pipelines for use in industrial applications. To address the prominent issues such as high energy consumption in the thermal recovery of heavy oil, significant pressure associated with the discharge of produced water, and high overall natural gas consumption, Liaohe Oilfield and Shenzhen New Energy Research Institute conducted joint research over two years and successfully developed a system for producing hydrogen from water associated with oil and gas fields. “Using produced water for hydrogen production can significantly reduce the costs associated with water treatment, water used for hydrogen production, as well as the costs of hydrogen storage, transportation, and utilization, thereby enabling the comprehensive use of associated water. ”Zhang Hongbao, project leader and deputy manager of the New Energy Division at Liaohe Oilfield, said. The system comprises three processes: hydrogen production, transportation, and application. Taking into account the low mineralization level of the water produced in the Liaohe Oil Field, it adopts a process route of \"thermal desalination + hydrogen production from brackish water\", using the waste heat from production to drive the desalination of the produced water and thereby preventing the formation of silica scale, thus improving the energy efficiency of the process. The technical team first completed system debugging at the Qingdao laboratory, and then moved to the oil field site to carry out tests. The technical team overcame challenges such as long transportation distances and large temperature differences between day and night during winter, and by adopting technical measures like dual-pole coordinated energy reduction and the use of two separate systems, it managed to effectively reduce the costs associated with source water treatment. The success of this experiment has solved the industry challenge of efficiently treating associated water in a low-carbon manner, as well as the high treatment costs associated with traditional produced water treatment. At the same time, by leveraging the existing resources of the oil field, low-cost hydrogen production is achieved, reducing natural gas consumption; this fills the technical gap in the direct electrolytic production of hydrogen from oil field produced water, further verifying the feasibility and advantages of this technology for producing hydrogen via electrolysis of oil and gas field produced water. It is understood that the technical team will subsequently raise the power capacity of this hydrogen production system using oil and gas associated water from 10 kilowatts to 100 kilowatts, in order to further expand its scope of application.