This study presents the evolution of downhole fiber optics to a new hybrid electro-optical cable for coiled tubing (CT) applications. The optical fibers enable optical communication and distributed measurements such as distributed temperature and acoustic sensing. The Fiber Optic Association, Inc. The FEBUS Optics interrogators have been developed and optimized to meet all the challenges of well monitoring and its many applications. Our embedded softwares (on our DAS, DTS, DSS). Carina 100Xlog is a high-efficiency retrievable fibre optic well logging service that visualizes entire well dynamics in real-time much more rapidly than conventional technologies, reducing deferred production. Unlike traditional intervention surveillance technologies, our well logging service. Distributed fiber optic vibration signal logging is a technology that uses fiber optics to sense the vibration signals returned from different formations or well walls to analyze the surrounding formation characteristics or downhole events, which has the advantages of strong real-time monitoring. Permanent downhole fiber-optic cables are critical infrastructure in wellbore monitoring systems, ensuring reliable transmission of data for applications such as distributed temperature, acoustic, and strain sensing (DTS, DAS, and DSS)—all with one 1/4-in control line. These monitoring systems help. Construction of passive optical network.