分布式光纤声学传感系统在地球物理勘探领域内的研究进展OACSTPCD

Distributed acoustic sensing(DAS)technology,one of the most advanced sound field detection technologies,can achieve distributed,long-distance,and high-precision real-time detection of the ambient vibration and sound field information interacting with optical fiber.The optical fiber exploration system of the DAS technology solves the problems of high cost and deployment difficulty of conventional geophones in complex geological environments.In recent years,the DAS technology has experienced rapid develop-ment,especially in monitoring application scenarios that require long-term and large-scale deployment.However,its systematic un-derstanding is insufficient due to divergent research results.To further understand the research advances of the DAS technology in ge-ophysical exploration for more effective subsequent research,this study systematically classified and summarized the development his-tory of the DAS technology and its recent research results in geophysical exploration based on the oil and gas,marine,and environ-mental engineering application scenarios through literature research.This study focused on the development process of the DAS tech-nology in different directions,the research advances in data processing,and relevant literature with specific results.Finally,this study generalized the development trend and urgent problems of the DAS acquisition system,analyzing the DAS development pros-pect.