破解世界级难题！从石头缝里“挤油”，成了

Core Insights - China's shale resource reserves rank among the highest in the world, but most are from continental formations, making extraction significantly more challenging than North American marine shale [1] - The breakthrough occurred in June 2020 when a well in the Gulong area achieved industrial oil flow, leading to the discovery of favorable oil properties and continuous oil presence in the shale [1][2] - The Daqing Oilfield research team developed a new theory and innovative methods to accurately assess oil reserves and improve extraction processes, despite the challenges posed by the unique geological conditions of Gulong shale [1] Group 1 - The Gulong shale oil is characterized by its high oil content and the presence of oil in extremely small pores, which are 1/500 the size of a human hair [1] - The research team initially attempted to adopt North American technologies but faced failures, leading to the development of a proprietary process that resulted in high and stable production wells [2] - The introduction of the "mud pattern shale artificial multi-stage fracture network technology" marked a significant innovation, solving a global challenge in shale oil extraction [2] Group 2 - By December 5, 2025, the Daqing Oilfield announced that the Gulong shale oil production had surpassed 1 million tons annually, a significant milestone for an area previously considered an exploration "no man's land" [2]