Core Insights - The successful completion of the world's first dynamic shear testing device for blowout preventers by China National Petroleum Corporation's (CNPC) drilling company marks a significant advancement in dynamic testing capabilities, placing China at the forefront of this technology [1][2] Group 1: Technological Advancement - The newly developed dynamic shear testing device can perform tests under dynamic conditions, addressing the limitations of existing international testing methods that only allow for static shear tests [1] - This innovation is crucial for ensuring well control safety in deep and ultra-deep unconventional oil and gas fields, where rapid and safe cutting of high-strength drill pipes is essential during critical moments [1] Group 2: Research and Development Efforts - The research team, led by the Sichuan Petroleum Safety Institute, has been working since 2021 to tackle challenges in extreme space design, dual-cylinder constant compensation, synchronous shearing, and digital twin technology [1] - After four years and hundreds of validations, the team successfully developed a dynamic shear device capable of handling various complex working conditions, significantly improving emergency response success rates [1] Group 3: Industry Impact - The successful "first shear" fills a technical gap in the American Petroleum Institute (API) drilling equipment standards regarding dynamic shearing, providing critical data for enhancing testing methods [2] - This advancement is expected to play a vital role in upgrading the safety system of the oil industry, contributing to overall operational safety [2]