【Ten Years of Great Progress in Chemical Engineering Technology】Wastewater Treatment Technologies and Equipment for Unconventional Oil and Gas Development Operations from 2019 to 2023

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Ten years of rapid development in chemical technology; praise for China’s prosperity and strength. This is just a starting point to encourage more participation from everyone. HaiChuan becomes even better with your involvement – we welcome all to join in the forum discussions. The fragrance of rice flowers in August ----------------------------------------- On August 4, 2023, at the 2023 Beijing Future Science City Technology Achievements Exhibition, an advanced tool developed by the China National Petroleum Security and Environmental Protection Technology Research Institute was presented: technologies and equipment for treating wastewater generated during unconventional oil and gas extraction operations. 　　This technology can be used for the comprehensive treatment of wastewater generated in unconventional oil and gas exploration operations. It is capable of processing 10 to 50 cubic meters of wastewater per hour, and the quality of the treated water meets or exceeds Class I standards specified in \"SY/T5329-2022 Technical Requirements and Analysis Methods for Water Quality in Injection Operations for Shale Oil Reservoirs.\" The treated water can be reused for injection into reservoirs, used in the preparation of fracturing fluids, or discharged after meeting regulatory standards, thus providing a comprehensive solution for wastewater management in the unconventional oil and gas industry. 　　According to Wang Zhansheng, a leading technical expert at CNPC’s Safety and Environment Research Institute, this achievement reveals the compositional characteristics of fracturing return fluids at different stages, as well as the mechanisms and patterns by which they affect the reuse of formulation materials. It establishes, for the first time, a set of priority control indicators for the treatment of such return fluids; 4 key technologies have been overcome, and multiple processes and devices for treating waste fluids have been developed. 　　At present, this achievement has been applied in various oil and gas field enterprises such as Daqing and Changqing, yielding significant social, environmental, and economic benefits. It provides technical support for the green and sustainable development of unconventional oil and gas exploration in China.