通过光纤实现的分布式声学传感 (DAS) 在井下监测中的应用已有 20 多年的历史。完整的论文回顾了 DAS 的基础知识、光纤类型、安装方法、记录数据的类型、数据处理、历史发展、当前应用和技术的局限性，并使用 200 多篇已发表的 SPE 论文中的几个现场案例进行了简明的回顾和期刊数据库。由于本概要无法保留这么多论文参考文献或其概述，因此鼓励读者在 OnePetro 上访问完整的论文。
DAS 单位。DAS 系统由询问器（包括激光发射器和检测器）、处理单元和分布式传感光纤组成。激光脉冲定期发送到安装在介质中的光纤中。
Distributed acoustic sensing (DAS) through fiber optics has been deployed in downhole monitoring for over 2 decades. The complete paper reviews the basics of DAS, fiber types, installation methods, types of recorded data, data processing, historical development, current applications, and limitations of the technology, providing a concise review using several field cases from more than 200 published SPE papers and journal databases. Because this synopsis cannot retain these many paper references or their overview, readers are encouraged to access the complete paper on OnePetro.
DAS Units. DAS systems consist of an interrogator that includes a laser transmitter and detector, a processing unit, and a distributed sensing fiber. Laser pulses are sent periodically into the fiber that is installed in the medium.
